Функция минимума

#include <iostream>
#include <cmath>

using namespace std;

float min(float a, float b){
    if(a < b) return a;
    else return b;
}


int main()
{
    float a,b;
    cout << "Введите a,b:"<< endl;
    cin >> a >> b;
    float u = min(a,b);
    float v = min(a*b, a+b);
    float f = min(a+pow(b,2),3.14);
    cout << "a = " << a << " b = " << b << endl;
    cout << "u = min(a,b) = " << u << endl
    << "v = min(a*b, a+b) = " << v << endl
    << "f = min(a+pow(b,2),3.14) = " << f << endl;
}