SharePoint Calculated Fields Use Excel Formulas.

This article was copied from here…
 
I was recently tasked with resolving a date issue for a Global Portal. People outside the US were complaining about the date format (MM/DD/YYYY)… I’ve long been a proponent of ISO dates (YYYY-MM-DD) and 28 day months… OK maybe 28 day months wouldn’t be so fun for savants to calculate.
Anyway the solution was obviously to include the month name. My first reaction was to change FLDTYPES.xml, then to create a custom field type, and finally it soon became obvious a calculated field should do the trick.

So I searched a minute for a formula to render the date with the month name in the middle… I didn’t find any so I created it.
It is a piece of cake to do it in VB and C#, but what does a calculated field provide? As it turns out quite a lot. Everybody knows your classic [Today], LTrim, etc… but what I didn’t know it that it supports a lot of Excel functions (not the VBA ones).

Before we get to the list of functions, here’s how to write the month name formula:
=TEXT([DateField],”dd”) &”/”& TEXT([DateField],”mmm”) &”/”& TEXT([DateField],”yyyy”)
or
=DAY([DateField]) &”/”& TEXT([DateField],”mmm”) &”/”& YEAR([DateField])

or better
=IF(NOT(ISBLANK([DateField])),DAY([DateField])&” “&TEXT([DateField],”mmm”)&” “&YEAR([DateField]),””)
Now here’s probably what your here for, a list of SharePoint Calculated Field/Column functions:
source (http://office.microsoft.com/en-us/excel/HP100791861033.aspx)

Function Description
DATE Returns the serial number of a particular date
DATEVALUE Converts a date in the form of text to a serial number
DAY Converts a serial number to a day of the month
DAYS360 Calculates the number of days between two dates based on a 360-day year
EDATE Returns the serial number of the date that is the indicated number of months before or after the start date
EOMONTH Returns the serial number of the last day of the month before or after a specified number of months
HOUR Converts a serial number to an hour
MINUTE Converts a serial number to a minute
MONTH Converts a serial number to a month
NETWORKDAYS Returns the number of whole workdays between two dates
NOW Returns the serial number of the current date and time
SECOND Converts a serial number to a second
TIME Returns the serial number of a particular time
TIMEVALUE Converts a time in the form of text to a serial number
TODAY Returns the serial number of today’s date
WEEKDAY Converts a serial number to a day of the week
WEEKNUM Converts a serial number to a number representing where the week falls numerically with a year
WORKDAY Returns the serial number of the date before or after a specified number of workdays
YEAR Converts a serial number to a year
YEARFRAC Returns the year fraction representing the number of whole days between start_date and end_date

Information functions

Function Description
CELL Returns information about the formatting, location, or contents of a cell
ERROR.TYPE Returns a number corresponding to an error type
INFO Returns information about the current operating environment
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
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
ISODD Returns TRUE if the number is odd
ISREF Returns TRUE if the value is a reference
ISTEXT Returns TRUE if the value is text
N Returns a value converted to a number
NA Returns the error value #N/A
TYPE Returns a number indicating the data type of a value

Logical functions

Function Description
AND Returns TRUE if all of its arguments are TRUE
FALSE Returns the logical value FALSE
IF Specifies a logical test to perform
IFERROR Returns a value you specify if a formula evaluates to an error; otherwise, returns the result of the formula
NOT Reverses the logic of its argument
OR Returns TRUE if any argument is TRUE
TRUE Returns the logical value TRUE

Math and trigonometry functions

Function Description
ABS Returns the absolute value of a number
ACOS Returns the arccosine of a number
ACOSH Returns the inverse hyperbolic cosine of a number
ASIN Returns the arcsine of a number
ASINH Returns the inverse hyperbolic sine of a number
ATAN Returns the arctangent of a number
ATAN2 Returns the arctangent from x- and y-coordinates
ATANH Returns the inverse hyperbolic tangent of a number
CEILING Rounds a number to the nearest integer or to the nearest multiple of significance
COMBIN Returns the number of combinations for a given number of objects
COS Returns the cosine of a number
COSH Returns the hyperbolic cosine of a number
DEGREES Converts radians to degrees
EVEN Rounds a number up to the nearest even integer
EXP Returns e raised to the power of a given number
FACT Returns the factorial of a number
FACTDOUBLE Returns the double factorial of a number
FLOOR Rounds a number down, toward zero
GCD Returns the greatest common divisor
INT Rounds a number down to the nearest integer
LCM Returns the least common multiple
LN Returns the natural logarithm of a number
LOG Returns the logarithm of a number to a specified base
LOG10 Returns the base-10 logarithm of a number
MDETERM Returns the matrix determinant of an array
MINVERSE Returns the matrix inverse of an array
MMULT Returns the matrix product of two arrays
MOD Returns the remainder from division
MROUND Returns a number rounded to the desired multiple
MULTINOMIAL Returns the multinomial of a set of numbers
ODD Rounds a number up to the nearest odd integer
PI Returns the value of pi
POWER Returns the result of a number raised to a power
PRODUCT Multiplies its arguments
QUOTIENT Returns the integer portion of a division
RADIANS Converts degrees to radians
ROMAN Converts an arabic numeral to roman, as text
ROUND Rounds a number to a specified number of digits
ROUNDDOWN Rounds a number down, toward zero
ROUNDUP Rounds a number up, away from zero
SERIESSUM Returns the sum of a power series based on the formula
SIGN Returns the sign of a number
SIN Returns the sine of the given angle
SINH Returns the hyperbolic sine of a number
SQRT Returns a positive square root
SQRTPI Returns the square root of (number * pi)
SUBTOTAL Returns a subtotal in a list or database
SUM Adds its arguments
SUMIF Adds 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
SUMSQ Returns the sum of the squares of the arguments
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 arrays
TAN Returns the tangent of a number
TANH Returns the hyperbolic tangent of a number
TRUNC Truncates a number to an integer

Statistical functions

Function Description
AVEDEV Returns the average of the absolute deviations of data points from their mean
AVERAGE Returns the average of its arguments
AVERAGEA Returns the average of its arguments, including numbers, text, and logical values
AVERAGEIF Returns the average (arithmetic mean) of all the cells in a range that meet a given criteria
AVERAGEIFS Returns the average (arithmetic mean) of all cells that meet multiple criteria.
BETADIST Returns the beta cumulative distribution function
BETAINV Returns the inverse of the cumulative distribution function for a specified beta distribution
BINOMDIST Returns the individual term binomial distribution probability
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
CHITEST Returns the test for independence
CONFIDENCE Returns the confidence interval for a population mean
CORREL Returns the correlation coefficient between two data sets
COUNT Counts how many numbers are in the list of arguments
COUNTA Counts how many values are in the list of arguments
COUNTBLANK Counts the number of blank cells within a range
COUNTIF Counts the number of cells within a range that meet the given criteria
COUNTIFS Counts the number of cells within a range that meet multiple criteria
COVAR Returns covariance, the average of the products of paired deviations
CRITBINOM Returns the smallest value for which the cumulative binomial distribution is less than or equal to a criterion value
DEVSQ Returns the sum of squares of deviations
EXPONDIST Returns the exponential distribution
FDIST Returns the F probability distribution
FINV Returns the inverse of the F probability distribution
FISHER Returns the Fisher transformation
FISHERINV Returns the inverse of the Fisher transformation
FORECAST Returns a value along a linear trend
FREQUENCY Returns a frequency distribution as a vertical array
FTEST Returns the result of an F-test
GAMMADIST Returns the gamma distribution
GAMMAINV Returns the inverse of the gamma cumulative distribution
GAMMALN Returns the natural logarithm of the gamma function, Γ(x)
GEOMEAN Returns the geometric mean
GROWTH Returns values along an exponential trend
HARMEAN Returns the harmonic mean
HYPGEOMDIST Returns the hypergeometric distribution
INTERCEPT Returns the intercept of the linear regression line
KURT Returns the kurtosis of a data set
LARGE Returns the k-th largest value in a data set
LINEST Returns the parameters of a linear trend
LOGEST Returns the parameters of an exponential trend
LOGINV Returns the inverse of the lognormal distribution
LOGNORMDIST Returns the cumulative lognormal distribution
MAX Returns the maximum value in a list of arguments
MAXA Returns the maximum value in a list of arguments, including numbers, text, and logical values
MEDIAN Returns the median of the given numbers
MIN Returns the minimum value in a list of arguments
MINA Returns the smallest value in a list of arguments, including numbers, text, and logical values
MODE Returns the most common value in a data set
NEGBINOMDIST Returns the negative binomial distribution
NORMDIST Returns the normal cumulative distribution
NORMINV Returns the inverse of the normal cumulative distribution
NORMSDIST Returns the standard normal cumulative distribution
NORMSINV Returns the inverse of the standard normal cumulative distribution
PEARSON Returns the Pearson product moment correlation coefficient
PERCENTILE Returns the k-th percentile of values in a range
PERCENTRANK Returns the percentage rank of a value in a data set
PERMUT Returns the number of permutations for a given number of objects
POISSON Returns the Poisson distribution
PROB Returns the probability that values in a range are between two limits
QUARTILE Returns the quartile of a data set
RANK Returns the rank of a number in a list of numbers
RSQ Returns the square of the Pearson product moment correlation coefficient
SKEW Returns the skewness of a distribution
SLOPE Returns the slope of the linear regression line
SMALL Returns the k-th smallest value in a data set
STANDARDIZE Returns a normalized value
STDEV Estimates standard deviation based on a sample
STDEVA Estimates standard deviation based on a sample, including numbers, text, and logical values
STDEVP Calculates standard deviation based on the entire population
STDEVPA Calculates standard deviation based on the entire population, including numbers, text, and logical values
STEYX Returns the standard error of the predicted y-value for each x in the regression
TDIST Returns the Student’s t-distribution
TINV Returns the inverse of the Student’s t-distribution
TREND Returns values along a linear trend
TRIMMEAN Returns the mean of the interior of a data set
TTEST Returns the probability associated with a Student’s t-test
VAR Estimates variance based on a sample
VARA Estimates variance based on a sample, including numbers, text, and logical values
VARP Calculates variance based on the entire population
VARPA Calculates variance based on the entire population, including numbers, text, and logical values
WEIBULL Returns the Weibull distribution
ZTEST Returns the one-tailed probability-value of a z-test

Text functions

Function Description
ASC Changes full-width (double-byte) English letters or katakana within a character string to half-width (single-byte) characters
CHAR Returns the character specified by the code number
CLEAN Removes all nonprintable characters from text
CODE Returns a numeric code for the first character in a text string
CONCATENATE Joins several text items into one text item
DOLLAR Converts a number to text, using the $ (dollar) currency format
EXACT Checks to see if two text values are identical
FIND, FINDB Finds one text value within another (case-sensitive)
FIXED Formats a number as text with a fixed number of decimals
JIS Changes half-width (single-byte) English letters or katakana within a character string to full-width (double-byte) characters
LEFT, LEFTB Returns the leftmost characters from a text value
LEN, LENB Returns the number of characters in a text string
LOWER Converts text to lowercase
MID, MIDB Returns a specific number of characters from a text string starting at the position you specify
PHONETIC Extracts the phonetic (furigana) characters from a text string
PROPER Capitalizes the first letter in each word of a text value
REPLACE, REPLACEB Replaces characters within text
REPT Repeats text a given number of times
RIGHT, RIGHTB Returns the rightmost characters from a text value
SEARCH, SEARCHB Finds one text value within another (not case-sensitive)
T Converts its arguments to text
TEXT Formats a number and converts it to text
TRIM Removes spaces from text
UPPER Converts text to uppercase
VALUE Converts a text argument to a number