C/math.h/exp2

exp2: returns 2 raised to the arg power

<source lang="cpp">

//Header file: #include <math.h> //Declaration: float exp2f(float arg);

              double exp2(double arg); 
              long double exp2l(long double arg);  

 #include <math.h>
 #include <stdio.h>
 int main(void)
 {
    printf("Value of e to the first: %f.", exp2(1.0));
 }
        

/* Value of e to the first: 2.000000.*/

      </source>