Commit 4282063

NaitikDwivedepre-commit-ci[bot]MaximSmolskiy

authored

Add matrix inversion algorithm using NumPy (#12657)

* Create matrix_inversion.py * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * Update matrix_inversion.py * Update matrix_inversion.py * Update matrix_inversion.py * Update matrix_inversion.py * Update matrix_inversion.py --------- Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com> Co-authored-by: Maxim Smolskiy <mithridatus@mail.ru>

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linear_algebra
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`‎linear_algebra/matrix_inversion.py`

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	`1`	`+import numpy as np`
	`2`	`+`
	`3`	`+`
	`4`	`+def invert_matrix(matrix: list[list[float]]) -> list[list[float]]:`
	`5`	`+ """`
	`6`	`+ Returns the inverse of a square matrix using NumPy.`
	`7`	`+`
	`8`	`+ Parameters:`
	`9`	`+ matrix (list[list[float]]): A square matrix.`
	`10`	`+`
	`11`	`+ Returns:`
	`12`	`+ list[list[float]]: Inverted matrix if invertible, else raises error.`
	`13`	`+`
	`14`	`+ >>> invert_matrix([[4.0, 7.0], [2.0, 6.0]])`
	`15`	`+ [[0.6000000000000001, -0.7000000000000001], [-0.2, 0.4]]`
	`16`	`+ >>> invert_matrix([[1.0, 2.0], [0.0, 0.0]])`
	`17`	`+ Traceback (most recent call last):`
	`18`	`+ ...`
	`19`	`+ ValueError: Matrix is not invertible`
	`20`	`+ """`
	`21`	`+ np_matrix = np.array(matrix)`
	`22`	`+`
	`23`	`+ try:`
	`24`	`+ inv_matrix = np.linalg.inv(np_matrix)`
	`25`	`+ except np.linalg.LinAlgError:`
	`26`	`+ raise ValueError("Matrix is not invertible")`
	`27`	`+`
	`28`	`+ return inv_matrix.tolist()`
	`29`	`+`
	`30`	`+`
	`31`	`+if __name__ == "__main__":`
	`32`	`+ mat = [[4.0, 7.0], [2.0, 6.0]]`
	`33`	`+ print("Original Matrix:")`
	`34`	`+ print(mat)`
	`35`	`+ print("Inverted Matrix:")`
	`36`	`+ print(invert_matrix(mat))`

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Commit 4282063

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`‎linear_algebra/matrix_inversion.py`

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