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X-Hacker.org- Watcom C Library Reference - <u>synopsis:</u>
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Synopsis:
#include <math.h>
double exp( double x );
Description:
The exp function computes the exponential function of x. A range error
occurs if the magnitude of x is too large.
Returns:
The exp function returns the exponential value. When the argument is
outside the permissible range, the matherr function is called. Unless
the default matherr function is replaced, it will set the global
variable errno to ERANGE, and print a "RANGE error" diagnostic message
using the stderr stream.
Example:
#include <stdio.h>
#include <math.h>
void main()
{
printf( "%f\n", exp(.5) );
}
produces the following:
1.648721
Classification:
ANSI
Systems:
Math
See Also:
log, matherr
See Also: log matherr
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