diff --git a/.obsidian/workspace.json b/.obsidian/workspace.json
index 15bbd93..e0fc82e 100644
--- a/.obsidian/workspace.json
+++ b/.obsidian/workspace.json
@@ -148,10 +148,10 @@
   },
   "active": "13c9bfe482ec2d42",
   "lastOpenFiles": [
-    "Algo/Séminaire/Introduction.md",
-    "Algo/Séminaire/Exercices sémaines.md",
-    "Algo/Séminaire/Chapter 2 - Functions.md",
     "Algo/Séminaire/Chapter 1 - CAML basics.md",
+    "Algo/Séminaire/Chapter 2 - Functions.md",
+    "Algo/Séminaire/Exercices sémaines.md",
+    "Algo/Séminaire/Introduction.md",
     "Algo/Séminaire/assets/69E2987C-209A-48CD-8964-5A60462966E5.jpg",
     "Algo/Séminaire/assets",
     "Algo/Séminaire/assets/F1D2AA19-E790-4022-AFFF-F778EAB28AB5.jpg",
diff --git a/Algo/Séminaire/Chapter 1 - CAML basics.md b/Algo/Séminaire/Chapter 1 - CAML basics.md
index 195e890..4564939 100644
--- a/Algo/Séminaire/Chapter 1 - CAML basics.md	
+++ b/Algo/Séminaire/Chapter 1 - CAML basics.md	
@@ -11,20 +11,20 @@ It's a simple language to write.
 - **;;** is the end of the line
 
 ```Ocaml
-_: int=3 *That a Caml answer to the previus program*
+_: int=3 (*That a Caml answer to the previus program*)
 ```
 
 ```Ocaml
-# 1+2.2;; *That an error*
+# 1+2.2;; (*That an error*)
 
-# 1. +. 2.2;; *This is good*
+# 1. +. 2.2;; (*This is good*)
 ```
 ## 1.2. CAML interaction
 ```Ocaml
-# 1;; *He can be a simple expression*
+# 1;; (*He can be a simple expression*)
 _: int=1
 
-# "Hello World";; *He can be a string*
+# "Hello World";; (*He can be a string*)
 _:string = "Hello World"
 ```
 
@@ -38,10 +38,10 @@ _: type of the evaluation = result  of the evaluation
 ### Global definitions
 ```Ocaml
 # let x=1+2;;
-val x:int = 3 *our current env is x -> 3*
+val x:int = 3 (*our current env is x -> 3*)
 
 # let y=x/2;;
-val y:int = 1 *our current env is x -> 3 ; y -> 1*
+val y:int = 1 (*our current env is x -> 3 ; y -> 1*)
 
 # let x = 2
 val x : int = 2
@@ -61,7 +61,7 @@ _ : float = 6.28
 _ : float = 30
 
 # x;;
-_ : int =2 *see global definition section*
+_ : int =2 (*see global definition section*)
 
 # pi;;
 error: unbound value pi
@@ -71,15 +71,14 @@ when there is the keyword ``len``and ``in`` that create a local definition. A lo
 
 ### Multiple definitions
 ```Ocaml
-# let r = 1. and pi : 3.14 in 2 *. pi *. r;; *local version*
+# let r = 1. and pi : 3.14 in 2 *. pi *. r;; (*local version*)
 _ : float = 6.28 
 
 # let x = 1.2 and y = "Hello";;
-val x: float = 1.2 *our current env is x -> 3 ; y -> 1 ; x -> 1.2 *
-val y: string = "Hello" *our current env is x -> 3 ; y -> 1 ; x -> 1.2 ; y -> "Hello"*
-
+val x: float = 1.2 (*our current env is x -> 3 ; y -> 1 ; x -> 1.2 *)
+val y: string = "Hello" (*our current env is x -> 3 ; y -> 1 ; x -> 1.2 ; y -> "Hello"*)
 # let x = 2 and y = x + 1 in y + 2;;
-Error *because x is 1.2 in our current evaluation*
+Error (*because x is 1.2 in our current evaluation*)
 ```
 > ⚠️ We have only one `let` and one `in` for the multiple definitions methods
 
@@ -129,7 +128,7 @@ _: bool = false
 - String: `string`
 ```Ocaml
 # "ab" < "abc" ;;
-_: bool = true *because O chars -> 2^24 - 6 chars*
+_: bool = true (*because O chars -> 2^24 - 6 chars*)
 
 # "Hello" ^" World"
 _: string = "Hello World"
diff --git a/Algo/Séminaire/Chapter 2 - Functions.md b/Algo/Séminaire/Chapter 2 - Functions.md
index 75e63c6..5c408ab 100644
--- a/Algo/Séminaire/Chapter 2 - Functions.md	
+++ b/Algo/Séminaire/Chapter 2 - Functions.md	
@@ -25,7 +25,7 @@ val g: int -> int = <fun>
 
 # fg 3;;
 Error: was expecting an integer and get a function
-# f(g 3);; *This way there is no error*
+# f(g 3);; (*This way there is no error*)
 _: int = 7
 ```
 
@@ -47,7 +47,7 @@ _: float -> int =<fun>
 
 # length "toto" ;;
 Error : Unboud
-# String.lenght "toto";; *String is a library*
+# String.lenght "toto";; (*String is a library*)
 _: int = 4
 ```
 
@@ -71,5 +71,5 @@ val square_of_pred: int -> int = <fun>
 val pred: int -> int = <fun>
 
 # square_of_pred 3;;
-_: int = 4 *same things but with another method*
+_: int = 4 (*same things but with another method*)
 ```
diff --git a/Algo/Séminaire/Exercices sémaines.md b/Algo/Séminaire/Exercices sémaines.md
index 4237a26..7552bc6 100644
--- a/Algo/Séminaire/Exercices sémaines.md	
+++ b/Algo/Séminaire/Exercices sémaines.md	
@@ -1,7 +1,7 @@
 ## 2.2 (Power)
 
 ```Ocaml
-(*First version*)
+(*First version ; 6 multiplications*)
 # let power28(x) =
 	let x2 = x + x in
 	let x4 = x2*x2 in
@@ -9,16 +9,16 @@
 	let x16 = x8*x8 in
 	x16*x8*x4 ;;
 
-(*Second version*)
+(*Second version ; 27 multiplications*)
 # let power28(x) = x*x*x*x*x*x...*x ;;
 
-(*Third version*)
+(*Third version ; 11 multiplications*)
 # let power28(x) = 
-	let sq(x) = x+x in
+	let sq(x) = x*x in
 	let pow4(x) = sq(sq(x)) in
 	pow4(pow4(x))*sq(pow4(x))*pow4(x);;
 
-(*Fourth version*)
+(*Fourth version ; 7 multiplications*)
 # let power28(x)=
 	let sq(x) = x+x in
 	let p4=sq(sq(x)) in