exp

  • Article

Calculates the exponential.

doubleexp(doublex**);**

Function Required Header Compatibility
exp <math.h> ANSI, Win 95, Win NT

For additional compatibility information, see Compatibility in the Introduction.

Libraries

LIBC.LIB Single thread static library, retail version
LIBCMT.LIB Multithread static library, retail version
MSVCRT.LIB Import library for MSVCRT.DLL, retail version

Return Value

The exp function returns the exponential value of the floating-point parameter, x, if successful. On overflow, the function returns INF (infinite) and on underflow, exp returns 0.

Parameter

x

Floating-point value

Example

/* EXP.C */

#include <math.h>
#include <stdio.h>

void main( void )
{
   double x = 2.302585093, y;

   y = exp( x );
   printf( "exp( %f ) = %f\n", x, y );
}

Output

exp( 2.302585 ) = 10.000000

Floating-Point Support Routines

See Also   log