This table provides a brief description of the functions available in the Y=f(X) command and similar commands. For a more detailed description of each function, click on the function name. Function names are not case specific.
For functions that take multiple arguments, the arguments must be separated by a comma, or, if the decimal symbol is set to a comma, by a semicolon.
Please note: All dates taken as input arguments to these functions are Excel 1900 date system serial numbers, the internal date format used throughout DPlot.
Absolute value 

Arccosine (inverse cosine) 

Inverse hyperbolic cosine 

Bitwise AND 

Arcsine (inverse sine) 

Inverse hyperbolic sine 

Arctangent (inverse tangent) 

Arctangent 

Inverse hyperbolic tangent 

Bessel function of the first kind 

Bessel function of the second kind 

Cumulative distribution function 

Rounds a number up 

Cosine 

Hyperbolic cosine 

Excel 1900 date system serial number that represents the input year, month, and day 

Day of the month from a date (131) 

Error function 

Complementary error function 

Exponent (inverse of log) 

Factorial 

Rounds a number down 

Raises a number to a fractional power 

Greatest common divisor 

Least common multiple 

Natural (basee) logarithm 

Base10 logarithm 

Maximum of two values 

Minimum of two values 

Remainder after division 

from a date (1=January) 

Rounds a number to a specified multiple 

Normal distribution 

Cumulative distribution function for the specified mean and standard deviation. 

Inverse of the cumulative distribution function 

Normallydistributed random number for a distribution with a specified mean and standard deviation. 

Bitwise NOT 

Bitwise OR 

Calculates the payment for a loan based on constant payments and a constant interest rate. 

number between specified limits 

Rounds a number to a specified number of digits 

Random whole number 

of a number 

Sine 

Hyperbolic sine 

Positive square root 

Add result of expression to previous result (Taylor series, for example) 

Tangent 

Hyperbolic tangent 

Day of the week from a date (1=Sunday, 7=Saturday) 

Number of weeks since start of year for a given date 

Bitwise XOR 

Year from a date 
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