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c#ban a leprogramozása(forráskód):

using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Drawing.Drawing2D; using System.Text; using System.Windows.Forms;

namespace WindowsApplication1 {

 public partial class Form1 : Form { Graphics mygr; Pen mypen; public Form1() { InitializeComponent(); } 

 private void Form1_Paint(object sender, PaintEventArgs e) { mygr = CreateGraphics(); mypen = new Pen(Color.Red, 3); } 

 private void button1_Click(object sender, EventArgs e) { kor(100); } private PointF F(double u,int R) { PointF SP = new PointF(); SP.X=(float)(R*Math.Pow(Math.Cos(u),3)); SP.Y = (float)(R *Math.Pow(Math.Sin(u),3)); return (SP); } private void kor(int R) { int db = 50; double a = 0; double b = 2 * Math.PI; double h = Math.Abs(b - a)/db; double u = a; PointF P0, P1; P0=new PointF(); P1=new PointF();; P0 = F(u,R); mygr.TranslateTransform(100, 100); for (int i = 2; i <= db+1; i++) { u = u + h; P1 = F(u, R); mygr.DrawLine(mypen,P0,P1); P0 = P1; } 

 } } 

}

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