# Programm joonistab epitsükloidi
# Muutes b-d saame erineva arvu "kroonlehti"
# Kui a=b on tulemuseks kardioid

from turtle import *
from math import *

a=100
b=25
penup()
sety(-a)
pendown()
pencolor('blue')
circle(a)
penup()
sety(0); setx(a)
pendown()
fillcolor('red')
pencolor('red')
#begin_fill()
for nurk in range(0,360,1):
    nurk_r = radians(nurk)
    x = (a+b)*cos(nurk_r) - b*cos((a+b)/b*nurk_r)
    y = (a+b)*sin(nurk_r) - b*sin((a+b)/b*nurk_r)
    setx(x)
    sety(y)
#end_fill()
done()