EXP(3) NEWLIB EXP(3)NAME
1.15 `exp', `expf'--exponential
SYNOPSIS
#include <math.h>
double exp(double X);
float expf(float X);
DESCRIPTION
`exp' and `expf' calculate the exponential of X, that is, e raised to
the power X (where e is the base of the natural system of logarithms,
approximately 2.71828).
You can use the (non-ANSI) function `matherr' to specify error han‐
dling for these functions.
RETURNS
On success, `exp' and `expf' return the calculated value. If the
result underflows, the returned value is `0'. If the result overflows,
the returned value is `HUGE_VAL'. In either case, `errno' is set to
`ERANGE'.
PORTABILITY
`exp' is ANSI C. `expf' is an extension.
SEE ALSOexp is part of the library. The full documentation for is maintained
as a Texinfo manual. If info and are properly installed at your site,
the command
info
will give you access to the complete manual.
NEWLIB April 2010 EXP(3)
