Why can’t you not module doubles?

Question

I tryed to do it here:

But it shown a error?
https://code.sololearn.com/c1CWFHDOSfte/?ref=app

Answer 1

Modulus operator % is for integers.
You want fmod.
https://en.cppreference.com/w/cpp/numeric/math/fmod

Answer 2

Thanks jay !

Answer 3

#include <iostream>
#include<cmath>
using namespace std;

int main() {
double m = 2.00;
double m1 = 3.00;
double sum = fmod(m,m1);
cout<<sum<<endl;
return 0;
}
/*
thanks to Jay
*/

Answer 4

and even using fmod, the answer will never be exact if it is not used with integer types.