Chapter Contents
Previous
Next
TRIGAMMA

TRIGAMMA


Returns the value of the TRIGAMMA function

Category: Mathematical

Syntax
Arguments
Details
Examples

Syntax

TRIGAMMA(argument)

Arguments

argument
is numeric.
Restriction: Nonpositive integers are invalid.

Details

The TRIGAMMA function returns the derivative of the DIGAMMA function. For argument > 0, the TRIGAMMA function is the second derivative of the LGAMMA function.

Examples

SAS Statements Results 
x=trigamma(3);
 
0.3949340668


Chapter Contents
Previous
Next
Top of Page

Copyright 1999 by SAS Institute Inc., Cary, NC, USA. All rights reserved.