QElephant/docs/Matrix.md
2023-10-24 17:02:12 +02:00

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## Matrix
Matrix(l: list[list[complexe]])
- l: representation of the matrix in a list
### Attributes
- ```__m: list[list[complexe]]```
the values contained in the matrix.
- ```__size: tuple[int, int]```
the size of the matrix
### Methode
- ```__init__(l: list[list[complex]]=[]) -> None```
initiates the matrix
- ```__mul__(__value: "Matrix") -> Matrix```
defines the natural multiplication as the Koeneger product for matrices
- ```__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__() -> 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}
\frac {1} {\sqrt 2} & \frac {1} {\sqrt 2}\\
\frac {1} {\sqrt 2} & -\frac{1} {\sqrt 2}
\end{pmatrix}
```
- ```X() -> Matrix```
returns the matrix
```math
\begin{pmatrix}
0 & 1\\
1 & 0
\end{pmatrix}
```
- ```SQRTX() -> Matrix```
returns the matrix
```math
\begin{pmatrix}
\frac {1+i} {2} & \frac {1-i} {2}\\
\frac {1-i} {2} & \frac {1+i} {2}
\end{pmatrix}
```
- ```Y() -> Matrix```
returns the matrix
```math
\begin{pmatrix}
0 & -i\\
i & 0
\end{pmatrix}
```
- ```Z() -> Matrix```
returns the matrix
```math
\begin{pmatrix}
1 & 0\\
0 & -1
\end{pmatrix}
```
- ```S() -> Matrix```
returns the matrix
```math
\begin{pmatrix}
1 & 0\\
0 & i
\end{pmatrix}
```
- ```T() -> Matrix```
returns the matrix
```math
\begin{pmatrix}
1 & 0\\
0 & e^{i\frac {\pi} {4}}
\end{pmatrix}
```
- ```Rx(phi: float) -> Matrix```
returns the matrix
```math
\begin{pmatrix}
\cos(\frac \phi 2) & -i\sin(\frac \phi 2)\\
-i\sin(\frac \phi 2) & \cos(\frac \phi 2)
\end{pmatrix}
```
- ```Ry(phi: float) -> Matrix```
returns the matrix
```math
\begin{pmatrix}
\cos(\frac \phi 2) & -\sin(\frac \phi 2)\\
\sin(\frac \phi 2) & \cos(\frac \phi 2)
\end{pmatrix}
```
- ```Rz(phi: float) -> Matrix```
returns the matrix
```math
\begin{pmatrix}
e^{-i\frac \phi 2} & 0\\
0 & e^{i\frac \phi 2}
\end{pmatrix}
```
- ```R1(phi: float) -> Matrix```
returns the matrix
```math
\begin{pmatrix}
1 & p\\
0 & e^{i\phi}
\end{pmatrix}
```
- ```CX() -> Matrix```
returns the matrix
```math
\begin{pmatrix}
1 & 0 & 0 & 0\\
0 & 1 & 0 & 0\\
0 & 0 & 0 & 1\\
0 & 0 & 1 & 0
\end{pmatrix}
```
- ```CY() -> Matrix```
returns the matrix
```math
\begin{pmatrix}
1 & 0 & 0 & 0\\
0 & 1 & 0 & 0\\
0 & 0 & 0 & -i\\
0 & 0 & i & 0
\end{pmatrix}
```
- ```CZ() -> Matrix```
returns the matrix
```math
\begin{pmatrix}
1 & 0 & 0 & 0\\
0 & 1 & 0 & 0\\
0 & 0 & 1 & 0\\
0 & 0 & 0 & -1
\end{pmatrix}
```
- ```SWAP() -> Matrix```
returns the matrix
```math
\begin{pmatrix}
1 & 0 & 0 & 0\\
0 & 0 & 1 & 0\\
0 & 1 & 0 & 0\\
0 & 0 & 0 & 0
\end{pmatrix}
```
- ```Cu(u: Matrix) -> Matrix```
returns the matrix
```math
\begin{pmatrix}
1 & 0 & 0 & 0\\
0 & 1 & 0 & 0\\
0 & 0 & u_{00} & u_{01}\\
0 & 0 & u_{10} & u_{11}
\end{pmatrix}
```