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• Calculator

import turtle
from kandinsky import fill_rect
from time import sleep

fill_rect(0,0,320,222,(40,60,30))
tt = turtle
tt.hideturtle()
tt.speed(0)
tt.color((255,)*3)

az=['@FN?GRNqPrUl^[^Xa_fliooiuSuL', '@MS?URoMsN@`Q?`U\\k^n', '@XM?WTUlTp@XM?\\LmKmK@W`?Z`h]j]', '@ZO?_GkHkRk\\[\\\\f@[n?WmWqXqXrZs\\r]q^o]o']

def move(x,y):tt.goto(x-160,110-y)

def coord(a,b,c,d,t):
 return a*(1-t)**3+3*b*t*(1-t)**2+3*c*t*t*(1-t)+d*t**3

def bezier(x,y,l,cc):
 tt.pendown()
 t=0
 for i in range(11):
  u=coord(l[0],l[2],l[4],l[6],t)
  v=coord(l[1],l[3],l[5],l[7],t)
  move(x+cc*u,y+cc*v)
  t+=.1

def f(l):return [ord(c) - 65 for c in l]  

def lettre(x,y,svg,cc):
 i = 0
 while i<len(svg):
  if svg[i]=="@":
    l=[svg[i+1],svg[i+2]]
    tt.penup()
    move(x+cc*f(l)[0],y+cc*f(l)[1])
    i+=3
  elif svg[i]=="?":i+=1
  else:  
    for j in range(6):l.append(svg[i+j])
    bezier(x,y,f(l),cc)
    l=[svg[i+4],svg[i+5]]
    i+=6

def phrase(x,y,txt,cc=1,ps=1):
 tt.pensize(ps) 
 for i,c in enumerate(txt):
  if c!=" ":
    lettre(x+cc*(40*i),y,az[ord(c)-97],cc)
 tt.penup()
 sleep(.6)

def cercle(r):
  tt.pensize(1)
  tt.setheading(90)
  tt.pendown()
  tt.circle(r)
  tt.penup()

tt.penup()
tt.goto(70,35)
cercle(75)
phrase(125,10,"a",ps=2)
tt.goto(20,-35)
cercle(75)
phrase(45,140,"b",ps=2)
phrase(90,85,"ab",.4,ps=1)
tt.goto(120,-35)
cercle(75)
phrase(210,140,"c",ps=2)
phrase(185,85,"ac",.4,ps=1)
phrase(135,160,"bc",.4,ps=1)
tt.color((255,255,0))
phrase(130,100,"d",.8,ps=3)