sec_algo_boucles_tp4.py

Created by morelo-lolo

Created on February 28, 2020

1.1 KB

Marche aléatoire du kangourou


from random import *
from turtle import *
def marche_aleatoire(n):
  # n est le nombre de sauts du kangourou
  # retourne la position du kangourou au bout de n sauts
  pos=0
  for k in range(n):
    alea=random()
    if alea < 0.2 :
      pos=pos-1
    else:
      pos=pos+1
  return pos
  
def marche_aleatoire_graphique(n,pas):
  # n est le nombre de sauts du kangourou
  # pas est la longueur de chaque saut
  pos=0
  # Préparation du graphique
  penup()
  goto(-150,0)
  pendown()
  color('green')
  goto(150,0)
  penup()
  goto(0,-5) 
  pendown()
  goto(0,5)
  penup()
  color('blue')
  
  # réglage de la vitesse: 
  speed(2)
  
  # Début de la marche
  for k in range(n):
    alea=random()
    if alea < 0.2 :
      pos=pos-1
      
    else:
      pos=pos+1
    goto(pos*pas,5)
  pendown()
  write(str(pos))
  

def position_moyenne(n,N):
  # n est le nombre de sauts pour chaque marche
  # N le nombre de marche pour le calcul de la moyenne
  Somme=0
  for k in range(N):
    resultat=marche_aleatoire(n)
    Somme=Somme+resultat
    print(resultat)
  return Somme/N
  
   
   
  
  
    

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