C Tutorial/math.h/exp

exp

Item Value Header file math.h Declaration float expf(float arg);double exp(double arg);long double expl(long double arg); Return returns the natural logarithm e raised to the arg power.

<source lang="cpp">#include <math.h>

 #include <stdio.h>
 int main(void)
 {
     printf("Value of e to the first: %f.", exp(1.0));

 }</source>