logistic2.py

Created by vnap0v

Created on May 01, 2025

505 Bytes

Function logistic_map() draws the bifurcation diagram of the logistic map on the screen. Uses libraries math and kandinsky. Can be used with 2 parameters logistic_map(astart, aend). Tested on the calculator using software version 23.2.6.

from math import *
import kandinsky
# bifurcation diagram 
# of logistic map
def logistic_map(astart=3.5,aend=4):
  aspan=aend-astart
  stap=4
  for x in range(320):
    a=astart+aspan*x/319
    l=0.5
    y=[0]*240
    for i in range(1500):
      l=a*l*(1-l)
      oldy=y[int(l*239)]
      y[int(l*239)]=stap+oldy  
    for r in range(240):
      if y[239-r]>255:
        y[239-r]=255
      co=kandinsky.color(y[239-r],y[239-r],y[239-r])
      kandinsky.set_pixel(x,r,co)

logistic_map()