C Tutorial/math.h/erf

erf

Item Value Header file math.h Declaration float erff(float arg);double erf(double arg);long double erfl(long double arg); Return returns the error function of arg.

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

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

 }</source>