Manpage of EXP
EXP
Section: NEWLIB (3)
Updated: 2005 Feb 23
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NAME
1.12 `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
handling 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 ALSO
exp
is part of the
libm
library.
The full documentation for
libm
is maintained as a Texinfo manual. If
info
and
libm
are properly installed at your site, the command
-
info libm
will give you access to the complete manual.
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURNS
-
- PORTABILITY
-
- SEE ALSO
-
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