Teaching C++

main.cpp

#include <iostream>
using namespace std;

int main()
{
  int value = 0;
  cout << "Enter an integer: ";
  cin >> value;
  cout << "You entered: " << value << endl;
  return 0;
}

build.sh

gcc main.cpp -lstdc++ -o hello

Compute the range of the projectile.

angleR = angleD * Pi / 180.0;
range = sin(2.0 * angleR) * pow(velocity, 2) / gravity;