exp517

#include <80c517.h>

float exp517 (
  float x);       /* power to use for ex function */

The exp517 function calculates the exponential function for the floating-point value x.

Note

• This routine uses the arithmetic unit of the Infineon C517x/C509 to provide accelerated execution speed. Do not use this routine with a CPU that does not support this feature.

The exp517 function returns the floating-point value e^x.

exp, log, log10, log10517, log517

#include <80c517.h>
#include <stdio.h> /* for printf */

void tst_exp (void) {
  float x;
  float y;

  x = 4.605170186;
  y = exp517 (x); /* y = 100 */

  printf ("EXP517(%f) = %f\n", x, y);
}