Python | sympy。矩阵行()方法

原文:https://www.geesforgeks.org/python-sympy-matrix-row-method/

借助**sympy.Matrix.row()**方法，我们可以提取矩阵的行。

语法: sympy.Matrix.row() 返回:返回一个矩阵的行。

示例#1 :

In the given example we can see that the sympy.Matrix().row() method is used to extract the rows of a matrix.

# Import all the methods from sympy
from sympy import *

# use the row() method for matrix
gfg_val = Matrix([[1, 2], [2, 1]]).row(1)

print(gfg_val)

输出:

[2, 1]

例 2 :

from sympy import *

# use the row() method for matrix
gfg_val = Matrix([[1, 2], [2, 3], [23, 45]]).row(2)

print(gfg_val)

输出:

[23, 45]