Why isnt it work properly?

Question

it should print A and B, where a+b=a*b. For example, 2+2=2*2 or 1,5*3=1,5+3

#include <iostream>
using namespace std;

int main() {
double a,b,sum,prod;
for (a=0.1; a<10; a=a+0.1){
for (b=0.1; b<10; b=b+0.1){
sum=a+b;
prod=a*b;
if (sum==prod){
cout << a << "*" << b << "=" << a << "+" << b << endl;
}
}
}
return 0;
}

Answer 1

you have already posted this.
dont double post