Question

Write a C++ function that will return a real random number X, where 9.7 ≤ X ≤ 39.4

Real numbers only

Answer 1

Here is the code to do so -

#include <iostream>
#include <cstdlib>
using namespace std;
float RandomFloat(float a, float b)
{
    float random = ((float) rand()) / (float) RAND_MAX;
    float diff = b - a;
    float r = random * diff;
    return a + r;
}
int main(int argc, char const *argv[])
{
float ans=RandomFloat(9.7,39.4);
cout<<"returned float value is "<<ans<<endl;
return 0;
}

output -

returned float value is 34.6536