Python sympy Matrix.columnspace()方法

在sympy.Matrix().columnspace()方法的帮助下，我们可以找到一个矩阵的列空间。Matrix().columnspace()返回一个横跨矩阵列空间的列向量列表。

语法: Matrix().columnspace()

返回：返回一个横跨矩阵列空间的列向量列表。

示例 #1:

# import sympy 
from sympy import * 
  
M = Matrix([[1, 0, 1, 3], [2, 3, 4, 7], [-1, -3, -3, -4]])
print("Matrix : {} ".format(M))
   
# Use sympy.columnspace() method 
M_columnspace = M.columnspace()  
      
print("Columnspace of a matrix : {}".format(M_columnspace))

输出:

Matrix : Matrix([[1, 0, 1, 3], [2, 3, 4, 7], [-1, -3, -3, -4]]) 
Columnspace of a matrix : [Matrix([
[ 1],
[ 2],
[-1]]), Matrix([
[ 0],
[ 3],
[-3]])]

示例 #2:

# import sympy 
from sympy import * 
  
M = Matrix([[14, 0, 11, 3], [22, 23, 4, 7], [-12, -34, -3, -4]])
print("Matrix : {} ".format(M))
   
# Use sympy.columnspace() method 
M_columnspace = M.columnspace()  
      
print("Columnspace of a matrix : {}".format(M_columnspace))

输出:

Matrix : Matrix([[14, 0, 11, 3], [22, 23, 4, 7], [-12, -34, -3, -4]]) 
Columnspace of a matrix : [Matrix([
[ 14],
[ 22],
[-12]]), Matrix([
[  0],
[ 23],
[-34]]), Matrix([
[11],
[ 4],
[-3]])]