Update Matrix.md

docs/Matrix.md

@@ -16,21 +16,43 @@ Matrix(l: list[list[complexe]])
 
 ### Methode
 
-- ```__init__(self, l: list[list[complex]]=[]) -> None```
+- ```__init__(l: list[list[complex]]=[]) -> None```
 
   initiates the matrix
 
-- ```__mul__(self, __value: "Matrix") -> Matrix```
+- ```__mul__(__value: "Matrix") -> Matrix```
 
   defines the natural multiplication as the Koeneger product for matrices
 
-- ```__apply(self, x: list[complex]) -> list[complex]```
+- ```__apply(x: list[complex]) -> list[complex]```
 
   takes a list to represent a vector in a colonne, and return the proctuct of the matrix by this vector
 
-- ```__str__(self) -> str```
+- ```__str__() -> str```
 
   returns a string representation of the matrix
 
 
 ### Staticmethods
+
+- ```I() -> Matrix```
+
+  returns the matrix
+
+```math
+\begin{pmatrix}
+1 & 0\\
+0 & 1
+\end{pmatrix}
+```
+
+- ```H() -> Matrix```
+
+  returns the matrix
+
+```math
+\begin{pmatrix}
+\frac1\sqrt 2 & \frac1\sqrt 2\\
+\frax1\sqrt 2 & -\frac1\sqrt 2
+\end{pmatrix}
+```