C/math.h/erfc

erfc: returns the complementary error function

<source lang="cpp">

//Declaration: float erfcf(float arg);

              double erfc(double arg); 
              long double erfcl(long double arg);  

   
 

 #include <math.h>
 #include <stdio.h>
 int main(void)
 {
    printf("Value of e to the first: %f.", erfc(1.1));

 }
        

/* Value of e to the first: 0.119795.*/

      </source>