Turtle showcase drawing a flower
from math import * from turtle import * speed(10) penup() forward(15) left(90) pendown() colormode(1.0) for j in range(25): for i in range(15): color( sin(((i+0)%15)/14*2*pi), sin(((i+5)%15)/14*2*pi), sin(((i+10)%15)/14*2*pi), ) right(90) circle(80-j*2,90) left(90) circle(80-j*2,90) right(180) circle(15,24) hideturtle()