C Program to Convert Cartesian Coordinates to Polar Coordinate

#include<stdio.h>
#include<conio.h>
#include<math.h>

#define PI 3.141592

int main()
{
float x, y, r, theta;
clrscr();
printf(“Enter cartesian coordinate x: “);
scanf(“%f”, &x);
printf(“Enter cartesian coordinate y: “);
scanf(“%f”, &y);

/* Calculating r */
r = sqrt(x*x + y*y);

/* Calculating theta in radian */
theta = atan(y/x);

/* Converting theta from degree to radian */
theta = 180.0 * theta/ PI;

printf(“Polar coordinate is: r = %0.2f and theta = %0.2f in degree”, r, theta);
getch(); /* Holds Screen */

return(0);
}

Output

 

Enter cartesian coordinate x: 1 ↲
Enter cartesian coordinate y: 1 ↲
Polar coordinate is: r = 1.41 and theta = 45.00 in degree