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• Calculator

from turtle import *
from random import *
from math import sin, cos, pi, sqrt

D = -108
speed(0)

def melange(n):
    return sorted(list(range(n)), key=lambda _: random())

def dispo(x,y,r,k,n):
  #return [x + r * cos(2*k*pi/n), y + r * sin(2*k*pi/n)]
  return [x + r * (k % n), y + r * int(k / n)] 

def molnar1(N):
  for j in range(N*N):
   color(randint(0,255), randint(0,255),randint(0,255)) 
   l = melange(N*N)
   [x,y] = dispo(-247,-240,50,j,N)
   for i in range(N):
      [x2,y2] = dispo(x,y,12,l[i],N)
      penup() if i == 0 else pendown()
      goto(x2, y2)

def molnar2():
  pensize(3)
  d = 6
  for y in range(30):
    penup()
    goto(-160, -200 + 15 * y)
    pendown()
    while position()[0] < 160:
      if random() < .1:
        [x,y] = position() 
        a = randint(0, 90)
        co, si = d * cos(pi * a / 180), d * sin(pi * a / 180)
        penup()
        goto(x, y - si)
        setheading(a)
        pendown()
        forward(2 * d)
        penup()
        goto(x + 2 * co, y)
        pendown()
      else:
        setheading(0)
        forward(2 * d)
 
def sss(n):
  #trace =[-90,32,0,4,90,16,0,4,-90,32]
  trace =[-45,32,-135,20,0,16,-90,4,-135,32]
  pendown()
  pensize(n)
  for i in range(5):
    setheading(trace[2 * i])
    forward(trace[2 * i + 1])
 
def molnar3():
  for x in range(15):
    l = melange(3)
    u, v = -150 + 20 * x, -40 + randint(1,48)
    for y in range(3):
      penup()
      goto(u, v + 48 * y)
      sss(l[y] + 1)

def molnar4():
  pensize(1)
  for y in range(15): #15
    penup()
    goto(-200, 95 - 14 * y)
    pendown()
    while position()[0] < 200:
      [x,y] = position()
      setheading(randint(10,60))
      forward(3 + randint(0,int((x + 200) // 10)))
      goto(x + randint(3,7), y)

def molnar5():
  v = 3
  for y in range(60):
    penup()
    goto(-160, -260 + 8 * y)
    pendown()
    while position()[0] < 160:
      if random() < .01:
        v += 0.1
        pensize(v) 
      forward(6)

def carre(d, c):
  pendown()
  a = random()<c
  if a:
   [x,y] = position()
   penup()
   setheading(randint(0,10))
   forward(randint(1,10))
   pendown()
  for i in range(4):
   forward(d)
   right(90)
  if a:
   penup()
   goto(x,y)
   setheading(0)

def molnar6():
  d = 6
  for k in range(40):
    penup()
    goto(-200 + 5 * k, 200 - 5 * k)
    pensize(2)
    carre(400 - 10 * k, .01)
 
hideturtle()