I recently discovered The Excel Function Bible:

http://www.rondebruin.nl/efb/efb.htm

This site has explanations about all 468 Excel Functions, check it out… This is a copy/paste from their downloadable spreadsheet:

ABS | Returns the absolute value of a number |

ACCRINT | Returns the accrued interest for a security that pays periodic interest |

ACCRINTM | Returns the accrued interest for a security that pays interest at maturity |

ACOS | Returns the arccosine, or inverse trigonometric function of cosine of a number. The arccosine is the angle whose cosine is number. |

ACOSH | Returns the inverse hyperbolic cosine of a number. The inverse hyperbolic cosine is the value whose hyperbolic cosine is number. |

ACOT | Returns the principal value in radians of the arccotangent, or inverse cotangent, of a number. |

ACOTH | Returns the inverse hyperbolic cotangent of a number. |

ADDRESS | Creates a cell address as text based on given row and column rumbers |

AGGREGATE | Returns an aggregate in a list or database. The AGGREGATE function can apply different aggregate functions to a list or database with the option to ignore hidden rows and error values. |

AMORDEGRC | Returns the depreciation for each accounting period using the French accounting system. If an asset is purchased in the middle of the accounting period, the prorated depreciation is taken into account. The function is similar to AMORLINC, except that a depreciation coefficient is applied in the calculation depending on the life of the assets. Do not use this function. The data used for the coefficient algorithm in the calculation used is out of date. See EFB Help & Examples for this function. |

AMORLINC | Returns the depreciation for each accounting period using the French accounting system. This function is provided for the French accounting system.Pro-rating of depreciation is used for assets purchased in the middle of an accounting period. |

AND | Returns TRUE if all its arguments are TRUE Excel 2007 onwards allow 255 Logical Conditions. Excel 2003 and before limit was 30. |

ARABIC | Converts a Roman numeral to an Arabic numeral. |

AREAS | Returns the number of areas in reference. Claimed volatile but apparently not. |

ASC | Changes full-width (double-byte) English letters or katakana within a character string to half-width (single-byte) characters |

ASIN | Returns the arcsine, or inverse sine, of a number. The returned angle is given in radians in the range -pi/2 to pi/2. |

ASINH | Returns the inverse hyperbolic sine of a number. The inverse hyperbolic sine is the value whose hyperbolic sine is number. Excel 2010 Improved accuracy. |

ATAN | Returns in radians the arctangent of a number |

ATAN2 | Returns the arctangent, or inverse tangent, of the specified x- and y-coordinates. The arctangent is the angle from the x-axis to a line containing the origin (0, 0) and a point with coordinates (x_num, y_num). The angle is given in radians between -pi and pi, excluding -pi. |

ATANH | Returns the inverse hyperbolic tangent of a number |

AVEDEV | Returns the average of the absolute deviations of data points from their mean for up to 255 numeric arguments. Was 30 before Excel 2007. |

AVERAGE | Returns the average (arithmetic mean) of up to 255 numeric arguments. Was 30 before Excel 2007. |

AVERAGEA | Returns the average (arithmetic mean) of up to 255 arguments and includes evaluation of text and logical arguments. Was 30 before Excel 2007. |

AVERAGEIF | Returns the arithmetic mean of all the cells in a range that meet a given criteria. |

AVERAGEIFS | Returns the arithmetic mean of all the cells in a range that meet multiple criteria. |

BAHTTEXT | Converts a number to Thai text and adds a suffix of “Baht” |

BASE | Converts a number into a text representation with the given radix (base). |

BESSELI | Returns the Bessel function evaluated for purely imaginary arguments |

BESSELJ | Returns the Bessel function represented by Jn(x) |

BESSELK | Returns the modified Bessel function represented by Kn(x) |

BESSELY | Returns the Bessel / Weber / Neumann function Yn(x) |

BETA.DIST | Returns either: a. The cumulative distribution function of the beta distribution, OR b. The probability density function of the beta distribution. |

BETADIST | Returns the cumulative beta probability density function |

BETA.INV | Returns the inverse of the beta cumulative probability density function (BETA.DIST). |

BETAINV | Returns the inverse of the cumulative beta probability density function |

BIN2DEC | Converts binary number to decimal |

BIN2HEX | Converts binary number to hexadecimal |

BIN2OCT | Converts binary number to octal |

BINOM.DIST | Returns either: a. The cumulative distribution function of the binomial distribution, OR b. The probability density function of the binomial distribution. |

BINOMDIST | Returns either: a. The cumulative distribution function of the binomial distribution, OR b. The probability density function of the binomial distribution. |

BINOM.DIST.RANGE | Returns the probability of a trial result lying within a user provided range using a binomial distribution. |

BINOM.INV | Returns the smallest value for which the cumulative binomial distribution is greater than or equal to a criterion value. |

BITAND | Returns a bitwise ‘AND’ of two numbers. |

BITLSHIFT | Returns a number shifted left by the specified number of bits. |

BITOR | Returns a bitwise ‘OR’ of two numbers. |

BITRSHIFT | Returns a number shifted right by the specified number of bits. |

BITXOR | Returns a bitwise ‘XOR’ of two numbers. |

CALL | Calls a procedure in a dynamic link library or code resource. Now disabled due to security risk problems. |

CEILING | Rounds a number (away from zero) to the nearest multiple of significance. Excel 2010 Improved accuracy. |

CEILING.MATH | Rounds a number up to the nearest integer or to the nearest multiple of significance. |

CEILING.PRECISE | Returns a number that is rounded up to the nearest integer or to the nearest multiple of significance. Regardless of the sign of the number, the number is rounded up. However, if the number or the significance is zero, zero is returned. |

CELL | Returns information about the formatting , location or contents of the cell or upper left cell of the reference. Volatile for some arguments. |

CHAR | Returns the ANSI character set (Microsoft) or Macintosh character set (Macintosh) specified by the code number |

CHIDIST | Returns the one-tailed probability of the chi-squared distribution |

CHIINV | Returns the inverse of the one-tailed probability of the chi-squared distribution |

CHISQ.DIST | Returns either: a. The cumulative distribution function of the chi-squared distribution, OR b. The probability density function of the chi-squared distribution. |

CHISQ.DIST.RT | Returns the right-tailed probability of the chi-squared distribution. |

CHISQ.INV | Returns the inverse of the left-tailed probability of the chi-squared distribution. |

CHISQ.INV.RT | Returns the inverse of the right-tailed probability of the chi-squared distribution. |

CHISQ.TEST | Returns the test for independence. CHISQ.TEST returns the value from the chi-squared (χ2) distribution for the statistic and the appropriate degrees of freedom. |

CHITEST | Returns the value from the chi-squared (γ2) distribution for the statistic and the appropriate degrees of freedom |

CHOOSE | Uses a specified index number to select one from up to 254 specified values. Was 29 before Excel 2007. |

CLEAN | Removes all nonprintable characters from text |

CODE | Returns a numeric code for the first character in a text string |

COLUMN | Returns the column number of the cell or a specified reference |

COLUMNS | Returns the number of columns in an array or reference. Claimed volatile but apparently not. |

COMBIN | Returns the number of combinations for a given number of objects without replacement. |

COMBINA | Returns the number of combinations (with repetitions) for a given number of items. |

COMPLEX | Converts real and imaginary coefficients into complex numbers of the form x + yi or x + yj depending upon suffix |

CONCATENATE | Joins up to 255 text items into one text item. Raised from 30 as from Excel 2007. |

CONFIDENCE | Returns the confidence interval for a population mean |

CONFIDENCE.NORM | Returns the confidence interval for a population mean, using a normal distribution. |

CONFIDENCE.T | Returns the confidence interval for a population mean, using a Student’s t distribution. |

CONVERT | Converts a number from one measurement system to another. Excel 2010 Improved accuracy. |

CORREL | Returns the correlation coefficient between two arrays of data |

COS | Returns the cosine of a given angle given in radians |

COSH | Returns the hyperbolic cosine of a number |

COT | Returns the cotangent of an angle specified in radians. |

COTH | Returns the hyperbolic cotangent of a hyperbolic angle. |

COUNT | Counts the number of cells that contain numbers and also numbers within the list of up to 255 arguments. Was 30 arguments before Excel 2007. |

COUNTA | Counts the number of non-empty cells and the values within the list of up to 255 arguments. Was 30 arguments before Excel 2007. |

COUNTBLANK | Counts the number of blank cells in the range. |

COUNTIF | Counts the number of cells that meet the criteria specified in the argument |

COUNTIFS | Applies criteria to cells across multiple ranges and counts the number of times all criteria are met. |

COUPDAYBS | Returns the number of days from the beginning of the coupon period to the settlement date using the specified or default day counting basis |

COUPDAYS | Returns the number of days in the coupon period that contains the settlement date using the specified or default day counting basis |

COUPDAYSNC | Returns the number of days from the settlement date to the next coupon date using the specified or default day counting basis |

COUPNCD | Returns the next coupon date after the settlement date using the specified or default day counting basis |

COUPNUM | Returns the number of coupons payable between the settlement date and maturity date using the specified or default day counting basis |

COUPPCD | Returns the previous coupon date before the settlement date using the specified or default day counting basis |

COVAR | Returns covariance; the average of the products of deviations for each data point pair |

COVARIANCE.P | Returns population covariance, the average of the products of deviations for each data point pair in two data sets. |

COVARIANCE.S | Returns the sample covariance, the average of the products of deviations for each data point pair in two data sets. |

CRITBINOM | Returns the smallest value for which the cumulative binomial distribution is less than or equal to a criterion value. |

CSC | Returns the cosecant of an angle specified in radians. |

CSCH | Return the hyperbolic cosecant of an angle specified in radians. |

CUBEKPIMEMBER | Returns a key performance indicator (KPI) property and displays the KPI name in the cell. A KPI is a quantifiable measurement, such as monthly gross profit or quarterly employee turnover, that is used to monitor an organization’s performance. |

CUBEMEMBER | Returns a member or tuple from the cube. Use to validate that the member or tuple exists in the cube. |

CUBEMEMBERPROPERTY | Returns the value of a member property from the cube. Use to validate that a member name exists within the cube and to return the specified property for this member. |

CUBERANKEDMEMBER | Returns the nth, or ranked, member in a set. Use to return one or more elements in a set, such as the top sales performer or the top 10 students. |

CUBESET | Defines a calculated set of members or tuples by sending a set expression to the cube on the server, which creates the set, and then returns that set to Microsoft Excel. |

CUBESETCOUNT | Returns the number of items in a set. |

CUBEVALUE | Returns an aggregated value from the cube. |

CUMIPMT | Returns the cumulative interest paid between two periods. Excel 2010 Improved accuracy. |

CUMPRINC | Returns the cumulative principal paid on a loan between two periods. Excel 2010 Improved accuracy. |

DATE | Returns the sequential Excel date / time serial number that represents a particular date using Year, Month, and Day inputs. |

DATEDIF | Calculates differences between two dates in terms of specified units and assumptions |

DATEVALUE | Converts a date text form to an Excel date / time serial number |

DAVERAGE | Returns the average of selected list or database entries based on specified criteria |

DAY | Converts an Excel date / time serial number to the day of a month |

DAYS | Returns the number of days between two dates. |

DAYS360 | Calculates the number of days between two dates using a specified 30 day month 360 day year method |

DB | Returns the depreciation of an asset for a specified period, using the fixed declining balance method |

DBCS | Converts half-width (single-byte) letters within a character string to full-width (double-byte) characters.
The name of the function (and the characters that it converts) depends upon your language settings. For Japanese, this function changes half-width (single-byte) English letters or katakana within a character string to full-width (double-byte) characters. |

DCOUNT | Counts the cells containing numbers from a specified database that match specified criteria |

DCOUNTA | Counts non blank cells from a specified database that match specified criteria criteria |

DDB | Returns the deoreciation of an asset for a specified period, using the double-declining balance method or some other method that is specified |

DEC2BIN | Converts a decimal number to binary |

DEC2HEX | Converts a decimal number to hexadecimal |

DEC2OCT | Converts a decimal number to octal |

DECIMAL | Converts a text representation of a number in a given base into a decimal number. |

DEGREES | Converts radians to degrees |

DELTA | Tests whether two values are equal |

DEVSQ | Returns the sum of the squares of the deviations from the sample mean of up to 255 arguments. Was 30 arguments before Excel 2007. |

DGET | Extracts from a specified database a single value that matches specified criteria |

DISC | Returns the discount rate for a security using the specified or default day counting basis |

DMAX | Extracts maximum number in a column of a list or database that matches specified conditions |

DMIN | Extracts minimum number in a column of a list or database that matches specified conditions |

DOLLAR | Converts a number to text, using currency format |

DOLLARDE | Converts a dollar price (expressed as a fraction) into a dollar price expressed as a decimal number |

DOLLARFR | Converts a dollar price (expressed as a decimal number) into a dollar price expressed as a fraction |

DPRODUCT | Multiplies the values in a particular field of records that match the specified criteria in a database |

DSTDEV | Estimates standard deviation of a population based on a sample using numbers in a column of a list or database that match specified conditions |

DSTDEVP | Calculates the standard deviation based on the entire population using numbers in a column of a list or database that match specified conditions |

DSUM | Adds the numbers in the field column of records in the database that match the specified criteria |

DURATION | Returns the Macauley duration of a security with periodic interest payments using the specified or default day counting basis |

DVAR | Estimates the variance of a population based on a sample by using the numbers in a column of a list or database that match specified criteria |

DVARP | Calculates the variance of a population based on the entire population by using the numbers in a column of a list or database that match specified criteria |

EDATE | Returns the Excel date / time serial number of the date that is the indicated number of months before or after the specified number of months from the start_date |

EFFECT | Returns the effective annual interest rate of a given nominal rate with its compounding frequency |

ENCODEURL | Returns a URL-encoded string. |

EOMONTH | Returns the Excel date / time serial number of the last day of the month before or after a specified number of months from start_date |

ERF | Returns the error function integrated between lower_limit and upper_limit. Excel 2010 Improved accuracy. |

ERF.PRECISE | Returns the error function. |

ERFC | Returns the complementary ERF function integrated between x and infinity. Excel 2010 Improved accuracy. |

ERFC.PRECISE | Returns the complementary ERF function integrated between x and infinity. |

ERROR.TYPE | Returns a number corresponding to an Excel error type or returns #N/A if there is no error. |

EUROCONVERT | Converts a number to or from Euros to or from a member currency or converts between one euro member currency to another using the Euro as an intermediary (triangulation) |

EVEN | Rounds a number away from zero to the nearest even integer |

EXACT | Checks to see whether two text values are identical |

EXP | Returns e (=2.71828182845904) raised to the power of a given number |

EXPON.DIST | Returns either: a. The cumulative distribution function of the exponential distribution, OR b. The probability density function of the exponential distribution. |

EXPONDIST | Returns either: a. The cumulative distribution function of the exponential distribution, OR b. The probability density function of the exponential distribution. |

F.DIST | Returns either: a. The cumulative distribution function of the F distribution, OR b. The probability density function of the F distribution. |

FDIST | Returns the F probability distribution |

F.DIST.RT | Returns the (right-tailed) F probability distribution (degree of diversity) for two data sets. |

F.INV | Returns the inverse of the F probability distribution. |

FINV | Returns the inverse of the F probability distribution |

F.INV.RT | Returns the inverse of the (right-tailed) F probability distribution found using F.DIST.RT. |

F.TEST | Returns the result of an F-test, the two-tailed probability that the variances in array1 and array2 are not significantly different. |

FTEST | Returns the result of an F-test; the one-tailed probability that the variances in array1 and array2 are not significantly different |

FACT | Returns the factorial of a number |

FACTDOUBLE | Returns the double factorial of a number |

FALSE | Returns the logical value FALSE |

FILTERXML | Returns specific data from the XML content by using the specified XPath. |

FIND | Finds one text value within another (case sensitive) |

FINDB | Finds one text value within another (case sensitive) based on the number of bytes each character uses. |

FISHER | Returns the Fisher transformation at x |

FISHERINV | Returns the inverse of the Fisher transformation |

FIXED | Rounds and formats and stores a number as text with a fixed number of decimals with or without digit grouping separators. |

FLOOR | Rounds a number down towards 0 to the nearest multiple of significance. Excel 2010 Improved accuracy. |

FLOOR.MATH | Round a number down to the nearest integer or to the nearest multiple of significance. |

FLOOR.PRECISE | Returns a number that is rounded down to the nearest integer or to the nearest multiple of significance. Regardless of the sign of the number, the number is rounded down. However, if the number or the significance is zero, zero is returned. |

FORECAST | Calculates a predicted value of y for a given x value based on known values for x and y |

FORMULATEXT | Returns a formula as a string. |

FREQUENCY | Counts how often values occur within given ranges of values and returns those counts as a vertical array of numbers |

FV | Returns the future value of an investment |

FVSCHEDULE | Returns the future value of an initial principal after applying a series of compound interest rates |

GAMMA | Returns the gamma function value. |

GAMMA.DIST | Returns either: a. The cumulative distribution function of the gamma distribution,OR b. The probability density function of the gamma distribution. |

GAMMA.INV | Returns the inverse of the gamma cumulative distribution. If p = GAMMA.DIST(x,…), then GAMMA.INV(p,…) = x. |

GAMMADIST | Returns either: a. The cumulative distribution function of the gamma distribution,OR b. The probability density function of the gamma distribution. |

GAMMAINV | Returns the inverse of the gamma distribution |

GAMMALN.PRECISE | Returns the natural logarithm of the gamma function, Γ(x). |

GAMMALN | Returns the natural logarithm of the gamma function Γ(x). Excel 2010 Improved accuracy. |

GAUSS | Calculates the probability that a member of a standard normal population will fall between the mean and z standard deviations from the mean. |

GCD | Returns the greatest common divisor of 1 – 255 integers. Excel 2007 increased from 29 integers. |

GEOMEAN | Returns the geometric mean of an array or range of positive data. Excel 2010 Improved accuracy. |

GESTEP | Tests whether a number is greater than a threshold value |

GETPIVOTDATA | Returns data stored in a pivot table |

GROWTH | Calculates predicted exponential growth and returns the y-values for a series of specified new x-values by using known x-values and y-values |

HARMEAN | Returns the harmonic mean of a data set by calculating the reciprocal of the arithmetic mean of reciprocals. Up to 255 number arguments increased from 29 in 2007 |

HEX2BIN | Converts a hexadecimal to a binary |

HEX2DEC | Converts a hexadecimal to a decimal |

HEX2OCT | Converts a hexadecimal to an octal |

HLOOKUP | Looks in the top row of a table or array and returns the value of the indicated cell |

HOUR | Converts an Excel date / time serial number to an hour |

HYPERLINK | Creates a shortcut that opens a document on your hard drive, a server or the internet |

HYPGEOM.DIST | HYPGEOM.DIST returns either: a. The cumulative distribution probability of a given number of sample successes, given the sample size, population successes, and population size, OR b. The probability mass function of a given number of sample successes, given the sample size, population successes, and population size. |

HYPGEOMDIST | Returns the hypergeometric distribution by calculating the probability of a given number of sample successes, given the sample size, population successes, and population size |

IF | Returns one value if the specified condition evaluates to TRUE and another value if it evaluates to FALSE. Nesting limit increased from 7 to 64 in Excel 2007. |

IFERROR | Returns a value you specify if a formula evaluates to an error; otherwise, returns the result of the formula. |

IFNA | Returns the value you specify if the formula returns the #N/A error value; otherwise returns the result of the formula. |

IMABS | Returns the absolute value (modulus) of a complex number provided in the text format “x + yi” or “x + yj” |

IMAGINARY | Returns the imaginary coefficient of a complex number provided in the text format “x + yi” or “x + yj” |

IMARGUMENT | Returns the argument theta – an angle expressed in radians such that: x + yi = |x + yi| * e^Ɵ = |x + yi|(cosƟ + isinƟ) |

IMCONJUGATE | Returns the complex conjugate of a complex number provided in the text format “x + yi” or “x + yj” |

IMCOS | Returns the cosine of a complex number provided in the text format “x + yi” or “x + yj” |

IMCOSH | Returns the hyperbolic cosine of a complex number provided in x+yi or x+yj text format. |

IMCOT | Returns the cotangent of a complex number provided in x+yi or x+yj text format. |

IMCSC | Returns the cosecant of a complex number provided in x+yi or x+yj text format. |

IMCSCH | Returns the hyperbolic cosecant of a complex number provided in x+yi or x+yj text format. |

IMDIV | Returns the quotient of two complex numbers provided in the text format “x + yi” or “x + yj” |

IMEXP | Returns the exponential of a complex number provided in the text format “x + yi” or “x + yj” |

IMLN | Returns the natural logarithm of a complex number provided in the text format “x + yi” or “x + yj” |

IMLOG10 | Returns the base-10 logarithm of a complex number provided in the text format “x + yi” or “x + yj” |

IMLOG2 | Returns the base-2 logarithm of a complex number provided in the text format “x + yi” or “x + yj” |

IMPOWER | Returns a complex number provided in the text format “x + yi” or “x + yj” raised to a user provided power. |

IMPRODUCT | Returns the product of 2 – 255 complex numbers provided in the text format “x + yi” or “x + yj”. Increased from 29 to 255 arguments in Excel 2007. |

IMREAL | Returns the real coefficient of a complex number provided in the text format “x + yi” or “x + yj” |

IMSEC | Returns the secant of a complex number provided in x+yi or x+yj text format. |

IMSECH | Returns the hyperbolic secant of a complex number provided in x+yi or x+yj text format. |

IMSIN | Returns the sine of a complex number provided in the text format “x + yi” or “x + yj” |

IMSINH | Returns the hyperbolic sine of a complex number provided in x+yi or x+yj text format. |

IMSQRT | Returns the square root of a complex number provided in the text format “x + yi” or “x + yj” |

IMSUB | Returns the difference of two complex numbers provided in the text format “x + yi” or “x + yj” |

IMSUM | Returns the sum of 2 – 255 complex numbers provided in the text format “x + yi” or “x + yj”. Increased from 29 to 255 arguments in Excel 2007. |

IMTAN | Returns the tangent of a complex number provided in x+yi or x+yj text format. |

INDEX | Alternative forms. Array form returns a value or array of values. Reference form returns a reference. Volatile pre Excel 97. |

INDIRECT | Returns a reference indicated by a value provided as text. Volatile. |

INFO | returns information about the current operating environment |

INT | Rounds a number to the left to the nearest integer on a number line. (Positive rounded towards zero. Negative rounded away from zero.) |

INTERCEPT | Calculates from given x and y values the point at which a line will intersect the y-axis |

INTRATE | Returns the interest rate for a fully invested security using the specified or default day counting basis |

IPMT | Returns the amount of the interest element in a payment for an investment for a given period. Excel 2010 Improved accuracy. |

IRR | Returns the internal rate of return for a series of cash flows. Excel 2010 Improved accuracy. |

ISBLANK | Returns TRUE if the value is blank |

ISERR | Returns TRUE if the value is any error value except #N/A |

ISERROR | Returns TRUE if the value is any error value |

ISEVEN | Returns TRUE if the number is even |

ISFORMULA | Checks whether there is a reference to a cell that contains a formula, and returns TRUE or FALSE. |

ISLOGICAL | Returns TRUE if the value is a logical value |

ISNA | Returns TRUE if the value is the #N/A error value |

ISNONTEXT | Returns TRUE if the value is not text |

ISNUMBER | Returns TRUE if the value is a number |

ISO.CEILING | Returns a number that is rounded up to the nearest integer or to the nearest multiple of significance. Regardless of the sign of the number, the number is rounded up. However, if the number or the significance is zero, zero is returned. |

ISODD | Returns TRUE if the number is odd |

ISOWEEKNUM | Returns the number of the ISO week number of the year for a given date. |

ISPMT | Returns the interest associated with a specific loan payment with a constant principal repayment loan. |

ISREF | Returns TRUE if the value is a reference |

ISTEXT | Returns TRUE if the value is text |

JIS | Changes half-width (single-byte) English letters or katakana within a character string to full-width (double-byte) characters. DBCS introduced in 2013 has same functionality. |

KURT | Returns the kurtosis of a data set; a measure that compares the relative peakedness or flatness of a distribution compared with the normal distribution. Up to 255 number arguments increased from 29 in 2007. |

LARGE | Returns the kth largest value in a data set |

LCM | Returns the least common multiple of 1 – 255 integers. Excel 2007 increased from 29 integers. |

LEFT | Returns the left most characters from a text value. |

LEFTB | Returns the first character or characters in a text string, based on the number of bytes you specify. |

LEN | Returns the number of characters in a text string |

LENB | Returns the number of bytes used to represent the characters in a text string |

LINEST | Entered as an array formula, LINEST returns an array that describes a line of best fit by using the least squares method |

LN | Returns the natural logarithm (base e = 2.71828182845904) of a number |

LOG | Returns the logarithm of a number to a specified base |

LOG10 | Returns the base-10 logarithm of a number |

LOGEST | Entered as an array formula, LOGEST calculates an exponential curve that fits known data and returns an array of values that describes that curve |

LOGNORM.DIST | Returns the lognormal distribution of x, where ln(x) is normally distributed with parameters Mean and Standard_dev. Returns either: a. The cumulative density function of the lognormal distribution, OR b. The probability density function of the lognormal distribution. |

LOGNORM.INV | Returns the inverse of the lognormal cumulative distribution function of x, where ln(x) is normally distributed with parameters Mean and Standard_dev. If p = LOGNORM.DIST(x,…) then LOGNORM.INV(p,…) = x. |

LOGNORMDIST | Returns the cumulative lognormal distribution of x, where ln(x) is normally distributed with known mean and standard deviation |

LOGINV | Returns the inverse of the lognormal cumulative distribution function of x, where ln(x) is normally distributed with given probability, mean, and standard deviation. If p = LOGNORM.DIST(x,…) then LOGINV(p,…) = x. |

LOOKUP | Alternative forms. Vector form looks up values in a one row or column range and returns a value in a second one row or column range. Array form looks in the first row or column of an array for the specified value and returns a value from the same position in the last row or column of the array. |

LOWER | Converts text to lowercase |

MATCH | Returns the relative position of an item in an array that matches a specified value in a specified order |

MAX | Returns the maximum value in a list of arguments ignoring logical values and text. Up to 255 number arguments increased from 30 in 2007. |

MAXA | Returns the maximum value in a list of arguments including logical values and text. Up to 255 number arguments increased from 30 in 2007. |

MDETERM | Returns the matrix determinant of an array |

MDURATION | Returns the Macauley modified duration for a security with an assumed par value of $100 using the specified or default day counting basis |

MEDIAN | Returns the median of the given numbers. Up to 255 number arguments increased from 30 in 2007. |

MID | Returns a specific number of characters from a string starting at a specified position |

MIDB | Returns a specific number of characters from a text string, starting at the position you specify, based on the number of bytes specified |

MIN | Returns the minimum value in a list of arguments ignoring logical values and text. Up to 255 number arguments increased from 30 in 2007. |

MINA | Returns the minimum value in a list of arguments including logical values and text. Up to 255 number arguments increased from 30 in 2007. |

MINUTE | Converts an Excel date / time serial number to a minute in the hour. |

MINVERSE | Returns the matrix inverse of an array |

MIRR | Returns the modified internal rate of return based on different finance and reinvestment rates for negative and positive cash flows |

MMULT | Returns the matrix product of two arrays |

MOD | Returns the remainder from division with the result having the same sign as the divisor. Excel 2010 Improved accuracy. |

MODE | Returns the most common value in a data set. Up to 255 number arguments increased from 30 in 2007. |

MODE.MULT | Returns a vertical array of the most frequently occurring, or repetitive values in an array or range of data. |

MODE.SNGL | Returns the most frequently occurring, or repetitive, value in an array or range of data. |

MONTH | Converts an Excel date / time serial number to a month in the year number. |

MROUND | Returns a number rounded to the desired multiple. Midway points are rounded away from 0 |

MULTINOMIAL | Returns the ratio of the factorial of a sum of values to the product of factorials. Excel 2007 increased from 29 number arguments to 255. |

MUNIT | Returns the unit matrix for the specified dimension. |

N | Returns a value converted to a number |

NA | Returns the error value #N/A |

NEGBINOM.DIST | Returns either: a. The cumulative distribution function of the negative binomial distribution, OR b. The probability density function of the negative binomial distribution. |

NEGBINOMDIST | Returns the negative binomial distribution; the probability that there will be number_f failures before the number_s-th success, when the constant probability of a success is probability_s |

NETWORKDAYS | Returns the number of whole working days between two dates excluding (if provided) specified holidays. |

NETWORKDAYS.INTL | Returns the number of whole workdays between two dates using parameters to indicate which and how many days are weekend days. Weekend days and any days that are specified as holidays are not considered as workdays. |

NOMINAL | Returns the nominal rate equivalent to a given annual effective with a given compounding frequency for the nominal rate |

NORM.DIST | Returns either: a. the cumulative distribution function of the normal distribution, OR b. the probability density function of the normal distribution. |

NORM.INV | Returns the inverse of the normal cumulative distribution for the specified mean and standard deviation. |

NORM.S.DIST | Returns either: a. the cumulative distribution function of the standard normal distribution, OR b. the probability density function of the standard normal distribution. |

NORM.S.INV | Returns the inverse of the standard normal cumulative distribution. The distribution has a mean of zero and a standard deviation of one. |

NORMDIST | Returns either: a. The cumulative distribution function of the normal distribution, OR b. The probability density function of the normal distribution. |

NORMINV | Returns the inverse of the normal cumulative distribution for the specified probability, mean, and standard deviation |

NORMSDIST | Returns the standard normal cumulative distribution function. The distribution has a mean of 0 and a standard deviation of 1 |

NORMSINV | Returns the inverse of the standard normal cumulative distribution |

NOT | Reverses the logic of its argument |

NOW | Returns the Excel date / time serial number of the current date and time. Volatile. |

NPER | Returns the number of periods for an investment |

NPV | Returns the net present value of an investment based upon a series of periodic cash flows and a discount rate where the first cash flow is received at the end of the first period. Excel 2007 increased from values argument from 28 number arguments to 254. |

NUMBERVALUE | Converts text to a number, in a locale-independent way. |

OCT2BIN | Converts an octal number to binary |

OCT2DEC | Converts an octal number to decimal |

OCT2HEX | Converts an octal number to hexadecimal |

ODD | Rounds a number away from 0 to the nearest odd integer |

ODDFPRICE | Returns the price per $100 face value of a security with an odd first period using the specified or default day counting basis |

ODDFYIELD | Returns the yield of a security with an odd first period using the specified or default day counting basis |

ODDLPRICE | Returns the price per $100 face value of a security with an odd last period using the specified or default day counting basis |

ODDLYIELD | Returns the yield of a security with an odd last period using the specified or default day counting basis |

OFFSET | Returns a reference to a range that is a specified number of rows and columns from a cell or range of cells. Volatile. |

OR | Returns TRUE if any argument is TRUE Excel 2007 onwards allow 255 Logical Conditions. Excel 2003 and before limit was 30. |

PDURATION | Returns the number of periods required by an investment to reach a specified value. |

PEARSON | Returns the Pearson product moment correlation coefficient |

PERCENTILE.EXC | Returns the k-th percentile of values in a range, where k is in the range 0..1, exclusive. |

PERCENTILE.INC | Returns the k-th percentile of values in a range, where k is in the range 0..1, inclusive. |

PERCENTILE | Returns the kth percentile of values in a range |

PERCENTRANK.EXC | Returns the rank of a value in a data set as a percentage (0..1, exclusive) of the data set. |

PERCENTRANK.INC | Returns the rank of a value in a data set as a percentage (0..1, inclusive) of the data set. |

PERCENTRANK | Returns the percentage rank of a value in a data set |

PERMUT | Returns the number of permutations for a given number of objects that can be selected from a number of objects without replacement |

PERMUTATIONA | Returns the number of permutations for a given number of objects (with repetitions) that can be selected from the total objects. |

PHI | Returns the value of the density function for a standard normal distribution. |

PHONETIC | Extracts the phonetic (furigana) characters from a text string |

PI | Returns the number 3.14159265358979, the mathematical constant pi, accurate to 15 digits |

PMT | Returns the periodic payment for an annuity. Excel 2010 Improved accuracy. |

POISSON.DIST | Returns either: a. the cumulative distribution function of the poisson distribution; OR b. the probability density function of the poisson distribution, |

POISSON | Returns either: a. The cumulative distribution function of the poisson distribution, OR b. The probability density function of the poisson distribution. |

POWER | Returns the result of a number raised to a power. |

PPMT | Returns the amount of principal element in a payment for an investment for a given period. Excel 2010 Improved accuracy. |

PRICE | Returns the price per $100 face value of a security that pays periodic interest using the specified or default day counting basis |

PRICEDISC | Returns the price per $100 face value of a discounted security using the specified or default day counting basis |

PRICEMAT | Returns the price per $100 face value of a security that pays interest at maturity using the specified or default day counting basis |

PROB | Returns either the probability that values in a range are between two limits or if upper_limit is not specified, the probability that values in x_range are equal to lower_limit |

PRODUCT | Multiplies together 1 – 255 numbers. Excel 2007 increased from 30 number arguments to 255. |

PROPER | Capitalizes the first letter in each word of a text value |

PV | Returns the present value of an investment |

QUARTILE.EXC | Returns the quartile of the data set, based on percentile values from 0..1, exclusive. |

QUARTILE.INC | Returns the quartile of a data set, based on percentile values from 0..1, inclusive. |

QUARTILE | Returns the quartile of a data set |

QUOTIENT | Returns the integer portion of a division |

RADIANS | Converts degrees to radians |

RAND | Returns an evenly distributed random number greater than or equal to 0 and less than 1. Volatile. Excel 2010 Improved accuracy. |

RANDBETWEEN | Returns a random number between (and inclusive of) two specified numbers |

RANK.AVG | Returns the rank of a number in a list of numbers: its size relative to other values in the list; if more than one value has the same rank, the average rank is returned. |

RANK.EQ | Returns the rank of a number in a list of numbers. Its size is relative to other values in the list; if more than one value has the same rank, the top rank of that set of values is returned. |

RANK | Returns the rank of a number in a list of numbers. Its size is relative to other values in the list; if more than one value has the same rank, the top rank of that set of values is returned. |

RATE | Returns the interest rate per period of an annuity |

RECEIVED | Returns the amount received at maturity for a fully invested security using the specified or default day counting basis |

REGISTER.ID | Returns the register ID of the specified dynamic link library (DLL) or code resource that has been previously registered. Appears to be obsolete. |

REPLACE | Replaces characters within text |

REPLACEB | Replaces part of a text string, based on the number of bytes you specify, with a different text string. |

REPT | Repeats text a given number of times |

RIGHT | Returns the rightmost characters from a text value |

RIGHTB | Returns the last character or characters in a text string, based on the number of bytes you specify |

ROMAN | Converts an arabic number to Roman, as text |

ROUND | Rounds a number to a specified number of digits to the left (-) or right (+) of the decimal point. The midway digit 5 is rounded away from 0. |

ROUNDDOWN | Rounds a number down towards 0 to a specified number of digits to the left (-) or right (+) of the decimal point |

ROUNDUP | Round a number up away from 0 to a specified number of digits to the left (-) or right (+) of the decimal point |

ROW | Returns the row number of a reference |

ROWS | Returns the number of rows in a reference. Claimed volatile but apparently not. |

RRI | Returns an equivalent interest rate for the growth of an investment. |

RSQ | Returns the square of the Pearson product moment correlation coefficient through data points in known_y’s and known_x’s |

RTD | Retrieves real-time data from a program that supports COM automation |

SEARCH | Finds one text value within another (not case sensitive) and returns the number of the starting position |

SEARCHB | Finds one text string (find_text) within another text string (within_text), and returns the number of the starting position of find_text. The result is based on the number of bytes each character uses, beginning with start_num |

SEC | Returns the secant of an angle. |

SECH | Returns the hyperbolic secant of an angle. |

SECOND | Converts an Excel date / time serial number to a second |

SERIESSUM | Returns the sum of a power series expansion |

SHEET | Returns the sheet number of the reference sheet. |

SHEETS | Returns the number of sheets in a reference. |

SIGN | Returns 1 for positive numbers, 0 if the number is 0 and, -1 if the number is negative |

SIN | Returns the sine of a given angle given in radians |

SINH | Returns the hyperbolic sine of a given angle |

SKEW | Returns the skewness of a distribution based on a sample: a characterization of the degree of asymmetry of a distribution around its mean. Up to 255 number arguments increased from 30 in 2007. |

SKEW.P | Returns the skewness of a distribution based on a population: a characterization of the degree of asymmetry of a distribution around its mean. |

SLN | Returns the straight-line depreciation of an asset for one period. |

SLOPE | Returns the slope (vertical distance / horizontal distance) of the linear regression line through data points in known_y’s and known_x’s |

SMALL | Returns the kth smallest value in a data set |

SQL.REQUEST | Connects with an external data source, and runs a query from a worksheet. SQL.REQUEST then returns the result as an array. Appears to be obsolete. |

SQRT | Returns a positive square root. |

SQRTPI | Returns the square root of a number multiplied by pi |

STANDARDIZE | Returns a normalized value from a distribution with known mean and standard_dev of the population. |

STDEV.P | Calculates standard deviation based on the entire population given as arguments (ignores logical values and text). |

STDEV.S | Estimates standard deviation based on a sample (ignores logical values and text in the sample). |

STDEVA | Estimates standard deviation based on a sample including text and logical values. Up to 255 number arguments increased from 30 in 2007. |

STDEVPA | Calculates standard deviation based on the entire population including text and logical values. Up to 255 number arguments increased from 30 in 2007. |

STDEV | Estimates standard distribution based on a sample ignoring text and logical values. Up to 255 number arguments increased from 30 in 2007. |

STDEVP | Calculates standard distribution based on the entire population ignoring text and logical values. Up to 255 number arguments increased from 30 in 2007. |

STEYX | Returns the standard error of the predicted y-value for each x in the regression |

SUBSTITUTE | Substitutes new text for old text in a text string |

SUBTOTAL | Returns the subtotal in a list or database. The function can apply different aggregate functions to a list or database. Excel 2007 increased from 30 number arguments to 255. |

SUM | Adds its arguments. Excel 2007 increased from 30 number arguments to 255. |

SUMIF | Add the cells specified by a given criteria. |

SUMIFS | Adds the cells in a range that meet multiple criteria. |

SUMPRODUCT | Returns the sum of the products of corresponding array components. Excel 2007 increased from 30 number arguments to 255. |

SUMSQ | Returns the sum of the squares of 1 – 254 numbers. Excel 2007 increased from 30. |

SUMX2MY2 | Returns the sum of the difference of squares of corresponding values in two arrays |

SUMX2PY2 | Returns the sum of the sum of squares of corresponding values in two arrays |

SUMXMY2 | Returns the sum of squares of differences of corresponding values in two array |

SYD | Returns the sum of years’ digits depreciation of an asset for a specified period |

T | Converts its arguments to text |

T.DIST | Returns the Student’s left-tailed t-distribution of either: a. The cumulative distribution function of the T distribution; OR b. The probability density function of the T distribution, |

T.DIST.2T | Returns the two-tailed Student’s t-distribution. |

T.DIST.RT | Returns the right-tailed Student’s t-distribution. |

T.INV | Returns the left-tailed inverse of the Student’s t-distribution. |

T.INV.2T | Returns the two-tailed inverse of the Student’s t-distribution. |

T.TEST | Returns the probability associated with a Student’s t-Test. |

TDIST | Returns the probability for the Student t-distribution where a numeric value (x) is a calculated value of t for which the probability is to be computed |

TINV | Returns the t-value of the Student’s t-distribution based on given probability and degrees of freedom |

TTEST | Returns the probability associated with a student’s t-test |

TAN | Returns the tangent of a given angle given in radians |

TANH | Returns the hyperbolic tangent of a number |

TBILLEQ | Returns the bond-equivalent yield for a treasury bill |

TBILLPRICE | Returns the price per $100 face value for a Treasury bill |

TBILLYIELD | Returns the yield for a treasury bill |

TEXT | Formats a number and converts it to text |

TIME | Returns the decimal portion of an Excel date / time serial number for a particular time |

TIMEVALUE | Converts the time in an acceptable form of text enclosed in quotation marks to the decimal portion of an Excel date / time serial number |

TODAY | Returns the Excel date / time serial number of today’s date. Volatile. |

TRANSPOSE | Returns the transpose of an array |

TREND | Entered as an array formula, TREND fits a straight line using the least squares method to arrays of known_y’s and known_x’s and returns the y-values along that line for the array of specified new_x’s |

TRIM | Removes all spaces from text except single spaces between words |

TRIMMEAN | Calculates the mean by excluding a specified percentage of data points from the top and bottom tails of a data set |

TRUE | Returns the logical value TRUE |

TRUNC | Truncates a number to an integer or to specified precision by removing the fractional part of the number. (Serves to round down towards 0) |

TYPE | Returns the type of value (1 for value is a number; 2 for value is text; 4 for value is logical value; 16 for value is error value; 64 for value is array) |

UNICHAR | Returns the Unicode character that is referenced by the given numeric value. |

UNICODE | Returns the number (code point) corresponding to the first character of the text. |

UPPER | Converts text to uppercase |

VALUE | Converts a text argument to a number |

VAR.P | Calculates variance based on the entire population (ignores logical values and text in the population). |

VAR.S | Estimates variance based on a sample (ignores logical values and text in the sample). |

VARA | Estimates variance based on a sample including text and logical values |

VARPA | Calculates variance based on the entire population including text and logical values |

VAR | Estimates variance based on a sample ignoring logical values and text |

VARP | Calculates variance based on the entire population ignoring text and logical values |

VDB | Returns the depreciation of an asset for a specified or partial period using a variable declining balance method |

VLOOKUP | Locates a specified value in the leftmost column of a specified table, and returns the value in the same row from a specified column in the table |

WEBSERVICE | Returns data from a web service on the Internet or Intranet. |

WEEKDAY | Converts an Excel date / time serial number to the number of the day of the week based upon counting system of return_type. Extended capabilities in Excel 2010. |

WEEKNUM | Returns the weeknumber in the year. The 1st week starts Jan-1; the 2nd week starts the following Sunday (return_type = 1) or Monday (return_type = 2). Extended capabilities in Excel 2010. |

WEIBULL.DIST | Returns either: a. The cumulative distribution function of the Weibull distribtion, or b. The probability density function of the Weibull distribution. |

WEIBULL | Returns either: a. The cumulative distribution function of the Weibull distribution, OR b. The probability density function of the Weibull distribution. |

WORKDAY | Returns the Excel date / time serial number of the date before or after a specified number of workdays excluding holidays |

WORKDAY.INTL | Returns the date serial number before or after a specified number of workdays adjusting for user specified weekend parameters and holidays which are not considered as workdays. |

XIRR | Returns the annual effective interest rate for a schedule of cash flows received at specified dates |

XNPV | Returns the Net Present Value of a series a cash flows paid or received at specified dates discounting at the daily effective equivalent of a given annual effective rate. |

XOR | Returns a logical Exclusive Or of all arguments. |

YEAR | Converts an Excel date / time serial number to a year |

YEARFRAC | Returns the difference between start_date and end_date expressed as a number of years including decimal fraction of a year. |

YEN | Converts a number to text, using the ¥ (yen) currency format, with the number rounded to a specified place |

YIELD | Returns the yield on a security that pays periodic interest using the specified or default day counting basis |

YIELDDISC | Returns the annual yield for a discounted security using the specified or default day counting basis. |

YIELDMAT | Returns the annual yield of a security that pays interest at maturity using the specified or default day counting basis |

Z.TEST | Returns the one-tailed probability value of a z-test. |

ZTEST | Returns the one-tailed P-value of a z-test |

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