diff --git a/TP Modules Scientifiques/tp3.py b/TP Modules Scientifiques/tp3.py
new file mode 100644
index 0000000..ea3bd3d
--- /dev/null
+++ b/TP Modules Scientifiques/tp3.py	
@@ -0,0 +1,66 @@
+import matplotlib.pyplot as plot
+import numpy as np
+import math
+
+
+def generer_abscisses(a, b, n):
+    return np.linspace(a, b, n)
+
+
+def tracer_courbe(f, a, b, n):
+    x = generer_abscisses(a, b, n)
+    y = f(x)
+    plot.plot(x, y)
+    plot.show()
+
+
+def f1(x):
+    return 2 * x + 3
+
+
+def f2(x):
+    return x ** 2
+
+
+def plusieurs_courbes():
+    x = np.linspace(-2 * np.pi, 2 * np.pi, 100)
+    y1 = np.sin(x)
+    y2 = np.cos(x)
+    plot.plot(x, y1, 'b', x, y2, 'r')
+    plot.show()
+
+
+def dessiner_cercle(x, y, r):
+    theta = np.linspace(0, 2 * np.pi, 100)
+    x = x + r * np.cos(theta)
+    y = y + r * np.sin(theta)
+    plot.axis("equal")
+    plot.plot(x, y)
+    return plot
+
+
+def cercle_dans_cercle():
+    plot.axis("equal")
+    fig, ax = plot.subplots()
+    for i in range(10):
+        cercle = dessiner_cercle(0, 0, i + 1)
+        ax.add_patch(cercle)
+    plot.show()
+
+
+
+
+# Jeu de test
+print(generer_abscisses(1, 10, 4))
+print(generer_abscisses(1, 10, 10))
+tracer_courbe(f1, -5, 20, 100)
+tracer_courbe(f2, -2, 2, 100)
+plusieurs_courbes()
+l = [1, 42, -3]
+a = np.array(l)
+print(a)  # affiche [1 42 -3]
+cos_a = np.cos(a)  # notez qu’il s’agit bien de np.cos() et pas de math.cos()
+print(cos_a)  # affiche [ 0.54030231 -0.66939722 -0.9899925 ]
+cercle = dessiner_cercle(0, 0, 1)
+cercle.show()
+cercle_dans_cercle()
\ No newline at end of file
diff --git a/TP class/main.py b/TP class/main.py
new file mode 100644
index 0000000..2c89eca
--- /dev/null
+++ b/TP class/main.py	
@@ -0,0 +1,52 @@
+from rational import Rational
+def __main__():
+    print("--------------------Rational--------------------")
+    r1 = Rational()
+    r1.set_numerator(1)
+    r1.set_denominator(2)
+    r2 = Rational()
+    r2.set_numerator(1)
+    r2.set_denominator(3)
+    print("--------------------r1--------------------")
+    print(r1)
+    print("--------------------r2--------------------")
+    print(r2)
+    r1.simplify()
+    r2.simplify()
+    print("--------------------r1.simplify--------------------")
+    print(r1)
+    print("--------------------r2.simplify--------------------")
+    print(r2)
+    print("--------------------r1 == r2--------------------")
+    print(r1 == r2)
+    print("--------------------r1 * r2--------------------")
+    r3 = r1 * r2
+    print(r3)
+    print("--------------------r1 / r2--------------------")
+    r4 = r1 / r2
+    print(r4)
+    print("--------------------r1 + r2--------------------")
+    r5 = r1 + r2
+    print(r5)
+    print("--------------------r3--------------------")
+    r3 = Rational()
+    r3.set_numerator(2346)
+    r3.set_denominator(1548)
+    print(r3)
+    r3.simplify()
+    print(r3)
+    print("--------------------r4--------------------")
+    r4 = Rational()
+    r4.set_numerator(9745)
+    r4.set_denominator(546)
+    print(r4)
+    r4.simplify()
+    print(r4)
+    print("--------------------r3 + r4--------------------")
+    r5 = r3 + r4
+    print(r5)
+
+
+
+if __name__ == "__main__":
+    __main__()
\ No newline at end of file
diff --git a/TP class/rational.py b/TP class/rational.py
new file mode 100644
index 0000000..b8f5306
--- /dev/null
+++ b/TP class/rational.py	
@@ -0,0 +1,63 @@
+class Rational:
+    def __init__(self):
+        self.__numerator = 0
+        self.__denominator = 1
+
+    def __pgcd(self, numerator, denominator):
+        while denominator != 0:
+            numerator, denominator = denominator, numerator % denominator
+        return numerator
+
+    def __ppcm(self, numerator, denominator):
+        return numerator * denominator // self.__pgcd(numerator, denominator)
+
+    def set_numerator(self, numerator):
+        self.__numerator = numerator
+
+    def set_denominator(self, denominator):
+        if denominator == 0:
+            print("Error: denominator can't be 0")
+            return
+        self.__denominator = denominator
+
+    def get_numerateur(self):
+        return self.__numerator
+
+    def get_denominator(self):
+        return self.__denominator
+
+    def __str__(self):
+        return f"{self.__numerator}/{self.__denominator}"
+
+    def simplify(self):
+        pgcd = self.__pgcd(self.__numerator, self.__denominator)
+        self.__numerator //= pgcd
+        self.__denominator //= pgcd
+
+    def __eq__(self, other):
+        return self.__numerator * other.__denominator == self.__denominator * other.__numerator
+
+    def __mul__(self, other):
+        numerator = self.__numerator * other.__denominator
+        denominator = self.__denominator * other.__denominator
+        r1 = Rational()
+        r1.set_numerator(numerator)
+        r1.set_denominator(denominator)
+        return r1
+
+    def __truediv__(self, other):
+        numerator = self.__numerator * other.__denominator
+        denominator = self.__denominator * other.__numerator
+        r1 = Rational()
+        r1.set_numerator(numerator)
+        r1.set_denominator(denominator)
+        return r1
+
+    def __add__(self, other):
+        numerator = (self.__numerator * (self.__ppcm(self.__denominator, other.__denominator) // self.__denominator) +
+                     other.__numerator * (self.__ppcm(self.__denominator, other.__denominator) // other.__denominator))
+        denominator = self.__ppcm(self.__denominator, other.__denominator)
+        r1 = Rational()
+        r1.set_numerator(numerator)
+        r1.set_denominator(denominator)
+        return r1
diff --git a/TP class/trucAvecJJ.py b/TP class/trucAvecJJ.py
new file mode 100644
index 0000000..10f4b48
--- /dev/null
+++ b/TP class/trucAvecJJ.py	
@@ -0,0 +1,19 @@
+class Test:
+    def __init__(self, n):
+        self.__n = n
+
+    def afficher_n(self):
+        print(self.__n)
+
+    def __str__(self):
+        return "n = " + str(self.__n)
+
+    def __add__(self, other):
+        return self.__n + other.__n
+
+
+T1 = Test(2)
+T1.afficher_n()
+print(T1)
+T2 = Test(3)
+print(T1 + T2)
\ No newline at end of file