#include <iostream>
#include <iomanip>

using namespace std;

int main() {
    float normal {0.1f};
    float normal1 {.01f};
    //   1.23 x 10 ^ 4   = 12300 
    //   3.64 x 10 ^ 99 
    //   6.2 x 10 ^ -4 = 0.00062
    //   8.34 x 10^  -99 
    //   -9.2 x 10^ -23
    //   -8.2 x 10^ 82 
    float small {1.0E-10f}; // 0.0000000001 = 1.0 x 10 ^ -10
    float big  {3.4e15f};
  
    float err = 1.0f/10.0f;   // 0.1

    cout << "A float is " << sizeof(float) << " bytes."  << endl;
    cout << "A double is " << sizeof(double) << " bytes."  << endl;
    cout << "A long  double is " << sizeof(long double) << " bytes."  << endl;
    cout << endl;

    cout << "normal = " << normal << endl;
    cout << "small = " << small << endl;
    cout << "big = " << big << endl;

    cout << endl;
    cout << setprecision(15);
    cout << "1/10 = " << err << endl;
    cout << "normal = " << normal << endl;

    cout << endl;
    cout << "int(4.9)  = " << int(4.9) << endl;
    cout << "int(4.3)  = " << int(4.3) << endl;

    int num {1};
    int denom{2};
    float fraction{0};

    cout << endl;
    fraction = float(num) / float(denom);
    cout << num << " / " << denom << " = " << fraction << endl;

    return 0;
}