From 4cf2adfd9e1c6daf50a736d45c51118420839aa7 Mon Sep 17 00:00:00 2001
From: mahmoudrabia <mahmoud.rabia@polytech-lille.net>
Date: Tue, 3 Sep 2024 15:52:08 +0200
Subject: [PATCH] first session

---
 exe2,3.py      | 16 ++++++++++++++++
 exercice2,2.py | 16 ++++++++++++++++
 exercice2.1.py | 19 +++++++++++++++++++
 3 files changed, 51 insertions(+), 0 deletions(-)
 create mode 100644 exe2,3.py
 create mode 100644 exercice2,2.py
 create mode 100644 exercice2.1.py

diff --git a/exe2,3.py b/exe2,3.py
new file mode 100644
index 0000000..79843a2
--- /dev/null
+++ b/exe2,3.py
@@ -0,0 +1,16 @@
+r = 3
+x=0,5;
+f=(r+1)*x-r*(x*x);
+def f1(x):
+    f1=(r+1)*x-r*(x*x);
+
+i = 0;
+for i in range(0,500):
+    f1(x)
+    x= f1(x);
+    
+    
+print(x)    
+
+#exo2.4
+# on va sortir de la boucle avant de tester est ce qu'elle egale a 0
\ No newline at end of file
diff --git a/exercice2,2.py b/exercice2,2.py
new file mode 100644
index 0000000..ab7ac08
--- /dev/null
+++ b/exercice2,2.py
@@ -0,0 +1,16 @@
+z = (3.11*2.3)*1.5;
+y = 3.11*(2.3*1.5);
+print(z)
+print(y)
+#we expcet the same result 
+# we got 10.7295 , 10.729499999999998 c'est pas le meme rendu  
+
+o = 1.11+(3.33+5.50);
+p = (1.11+3.33)+5.50;
+print(o);
+print(p);
+# le meme resultat pour les deux operations
+# 9.94 9.940000000000001 , c'est pas la meme precision pour les deux resultats
+
+
+
diff --git a/exercice2.1.py b/exercice2.1.py
new file mode 100644
index 0000000..e128e23
--- /dev/null
+++ b/exercice2.1.py
@@ -0,0 +1,19 @@
+#0.1 est non representable 
+x= 0.1 ;
+print(x)
+print("% .25f" %x)
+
+y=0.2;
+z= x+y;
+print(z)
+#0.3 
+#.30000000000000004
+ #laprecision est beaucoup mieux
+      #s qu'on a des calculs complexe la merge d'erreur augmante  plus de zero#
+p=2.675;
+print(round(p,2))
+
+#2.85
+
+
+ 
\ No newline at end of file
--
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