Calculates the complementary error function of the argument.
Include
<math.h>
Prototype
double erfc(double x);
Argument
x
Return Value
Calculates the complementary error function of the argument, being the 1 minus the error function of the same argument.
Example
#include <math.h>
#include <stdio.h>
int main(void)
{
double x, y;
x = 0.5;
y = erfc(x);
printf("The complementary error function from 0 to %f is %f\n", x, y);
x = -0.75;
y = erfc(x);
printf("The complementary error function from 0 to %f is %f\n", x, y);
}
Example Output
The complementary error function from 0 to 0.500000 is 0.479500
The complementary error function from 0 to -0.750000 is 1.711156