Python 中的代数矩阵模块

原文:https://www . geesforgeks . org/代数矩阵-python 中的模块/

代数矩阵模块是 python 库，帮助你执行基本矩阵代数，如两个矩阵的加法、两个矩阵的减法、两个矩阵的乘法、矩阵的转置。

安装库

这个模块没有内置 Python。你需要从外部安装它。要安装此模块，请在终端中键入以下命令。

pip install AlgebraOnMatrix

代数矩阵的函数

矩阵:它会把我们的二维数组转换成矩阵。

示例:

# Importing Matrix function  
# From AlgebraOnMatrix Library  
from AlgebraOnMatrix import Matrix

arr =[[1, 2, 3], [4, 5, 6, ], [7, 8, 9]]

# Now we will transform our 2d array
# into the matrix and make an object
# of it 
a = Matrix(arr)

矩阵运算

Addition of Matrices : Here we will add the matrix b with the matrix a where matrix b is given in 2d array .It will be done by function Matrix.addition(a, b) where a is a object which we have created and b is 2d array . Example :

```py

Importing Matrix function

From AlgebraOnMatrix Library

from AlgebraOnMatrix import Matrix

arr =[[1, 2, 3], [4, 5, 6, ], [7, 8, 9]]

Now we will transform our 2d array

into matrix and make an object of it

a = Matrix(arr)

b =[[1, 2, 3], [4, 5, 6, ], [7, 8, 9]]

ans = Matrix.addition(a, b) print(ans) ```

输出:

```py [[2, 4, 6], [8, 10, 12], [14, 16, 18]]

```
Subtraction of Matrices :Here we will subtract the matrix b from the matrix a where matrix b is given in 2d array .It will be done by function Matrix.subtraction(a, b) where a is a object which we have created and b is 2d array . Example :

```py

Importing Matrix function

From AlgebraOnMatrix Library

from AlgebraOnMatrix import Matrix

arr =[[1, 2, 3], [4, 5, 6, ], [7, 8, 9]]

Now we will transform our 2d array

into matrix and make an object of it

a = Matrix(arr)

b =[[1, 2, 3], [4, 5, 6, ], [7, 8, 9]]

ans = Matrix.subtraction(a, b) print(ans) ```

输出:

```py [[0, 0, 0], [0, 0, 0], [0, 0, 0]]

```
Multiplication of Matrices : Here we will multiply the matrix b with the matrix a where matrix b is given in 2d array .It will be done by function Matrix.multiplication(a, b) where a is a object which we have created and b is 2d array . Example :

```py

Importing Matrix function

From AlgebraOnMatrix Library

from AlgebraOnMatrix import Matrix

arr =[[1, 2, 3], [4, 5, 6, ], [7, 8, 9]]

Now we will transform our 2d array

into matrix and make an object of it

a = Matrix(arr)

b =[[1, 2, 3], [4, 5, 6, ], [7, 8, 9]]

ans = Matrix.multiplication(a, b) print(ans) ```

输出:

```py [[30, 36, 42], [66, 81, 96], [102, 126, 150]]

```
Transpose of Matrix :Here we will transpose the matrix a.It will be done by function Matrix.transpose(a) where a is a object which we have created Example :

```py

Importing Matrix function

From AlgebraOnMatrix Library

from AlgebraOnMatrix import Matrix

arr =[[1, 2, 3], [4, 5, 6, ], [7, 8, 9]]

Now we will transform our 2d array

into matrix and make an object of it

a = Matrix(arr)

ans = Matrix.transpose(a) print(ans) ```

输出:

```py [[1, 4, 7], [2, 5, 8], [3, 6, 9]]

```