python 生成对称矩阵

Prerequisite:

先决条件：

Here, we will learn how to create a symmetric matrix using a non-symmetric matrix? The following equation shows how a dot product of Matrix A and A^T can result in a symmetric matrix.

在这里，我们将学习如何使用非对称矩阵创建对称矩阵？ 下面的等式说明了矩阵A和A ^T的点积如何产生对称矩阵。

S = A.A^T

S = A ^T

Python代码创建对称矩阵 (Python code creating symmetric matrix)

# Linear Algebra Learning Sequence# Creating a Symmetric Matriximport numpy as npM = np.array([[2,3,4], [3,45,8], [34,7,0.8], [21,31,41]])print('A : ', M)print('\n\nTranspose of A : ', M.T)S = np.matmul(M,M.T)print('\n\nSymmetric Matrix : \n', S)

Output:

输出：

A :  [[ 2.   3.   4. ] [ 3.  45.   8. ] [34.   7.   0.8] [21.  31.  41. ]]Transpose of A :  [[ 2.   3.  34.  21. ] [ 3.  45.   7.  31. ] [ 4.   8.   0.8 41. ]]Symmetric Matrix :  [[  29.    173.     92.2   299.  ] [ 173.   2098.    423.4  1786.  ] [  92.2   423.4  1205.64  963.8 ] [ 299.   1786.    963.8  3083.  ]]

翻译自:

python 生成对称矩阵