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POW(3)                     Library Functions Manual                     POW(3)

NAME
     pow, powf -- power functions

LIBRARY
     Math Library (libm, -lm)

SYNOPSIS
     #include <&lt;math.h>&gt;

     double
     pow(double x, double y);

     float
     powf(float x, float y);

DESCRIPTION
     The pow() family of functions return x raised to the power of y.

     If x is negative and y is not an integer, the global variable errno is
     set to EDOM, and on VAX a reserved operand fault is generated.  A
     portable application should nevertheless ensure that y is an integer
     value whenever x is negative.

RETURN VALUES
     Upon successful completion, the described functions return x^y.

SEE ALSO
     exp(3), log(3)

STANDARDS
     The described functions conform to ISO/IEC 9899:1999 (``ISO C99'').

HISTORY
     The history of the power functions dates back to Version 6 AT&T UNIX.

NetBSD 6.1.5                  September 13, 2011                  NetBSD 6.1.5