Prerequisites:

先決條件：

• Defining a Matrix

  定義矩陣

• Identity Matrix

  身份矩陣

There are matrices whose inverse is the same as the matrices and one of those matrices is the identity matrix.

有些矩陣的逆與矩陣相同，并且這些矩陣之一是單位矩陣。

I^-.1 = I

Syntax:

句法：

inv_M = numpy.linalg.inv(I)

Here, "M" is the an identity matrix.

在此，“ M”是單位矩陣。

Python代碼查找單位矩陣的逆矩陣 (Python code to find the inverse of an identity matrix)

# Linear Algebra Learning Sequence # Inverse of a Identity Matriximport numpy as npI = np.eye(6) print("---Matrix I---\n", I)ai = np.linalg.inv(I) print('\n\nInverse of A as ----\n', ai)print('\n\nThe Matrices are same')

Output:

輸出：

---Matrix I---[[1. 0. 0. 0. 0. 0.][0. 1. 0. 0. 0. 0.][0. 0. 1. 0. 0. 0.][0. 0. 0. 1. 0. 0.][0. 0. 0. 0. 1. 0.][0. 0. 0. 0. 0. 1.]]Inverse of A as ----[[1. 0. 0. 0. 0. 0.][0. 1. 0. 0. 0. 0.][0. 0. 1. 0. 0. 0.][0. 0. 0. 1. 0. 0.][0. 0. 0. 0. 1. 0.][0. 0. 0. 0. 0. 1.]]The Matrices are same

翻譯自: https://www.includehelp.com/python/inverse-of-an-identity-matrix.aspx

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