# -*- coding: utf-8 -*-
"""
Created on Fri Sep 12 09:31:03 2025

@author: François Coulombeau
"""
import numpy as np
import matplotlib.pyplot as plt

X = np.linspace(-0.5,0.5,500)
Y1 = X/(1+np.abs(X))
Y2 = np.abs(X)

plt.plot(X,Y1, label = "Fonction $f$")
plt.plot(X,Y2, label = "Fonction valeur absolue")
plt.legend()