Manpage of POW
POW
Section: NEWLIB (3)
Updated: 2005 Feb 23
Index
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NAME
1.23 `pow', `powf'--x to the power y
SYNOPSIS
#include <math.h>
double pow(double X, double Y);
float pow(float X, float Y);
DESCRIPTION
`pow' and `powf' calculate X raised to the exponent Y.
RETURNS
On success, `pow' and `powf' return the value calculated.
When the argument values would produce overflow, `pow' returns
`HUGE_VAL' and set `errno' to `ERANGE'. If the argument X passed to
`pow' or `powf' is a negative noninteger, and Y is also not an integer,
then `errno' is set to `EDOM'. If X and Y are both 0, then `pow' and
`powf' return `1'.
You can modify error handling for these functions using `matherr'.
PORTABILITY
`pow' is ANSI C. `powf' is an extension.
SEE ALSO
pow
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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