#include <iostream>
#include <math.h>
#define PI 3.14159

// prototype
void polar_to_cartesian(double rho, double theta, double &x, double &y);

int main()
{
	double rho, theta, x, y;
	cout << "Enter rho: ";
	cin >> rho;
	cout << "Enter theta: ";
	cin >> theta;
	polar_to_cartesian(rho, theta, x, y);
	cout << "In cartesian coordinates that is (" << x << "," << y << ")\n";
}

// inputs:  rho, theta (in degrees)
// outputs: x y
void polar_to_cartesian(double rho, double theta, double &x, double &y)
{
	// convert theta from degrees to radians
	theta *= PI / 180.;

	x = rho * cos(theta);
	y = rho * sin(theta);
}