C/math.h/remainder
remainder: returns the remainder of a/b
//Declaration: float remainderf(float a, float b);
double remainder(double a, double b);
long double remainderl(long double a, long double b);
#include <math.h>
#include <stdio.h>
int main(void)
{
double x = 10.0, y = 0.0;
do {
printf("%f\n", remainder (x, y+1));
y++;
} while(y<11.0);
return 0;
}
/*
0.000000
0.000000
1.000000
2.000000
0.000000
-2.000000
3.000000
2.000000
1.000000
0.000000
-1.000000
*/