ValueError:预计算矩阵必须是方阵。输入为500x29243矩阵

import numpy as np

def is_square_matrix(matrix):
    return matrix.shape[0] == matrix.shape[1]

# 示例矩阵
matrix = np.random.rand(500, 29243)

if is_square_matrix(matrix):
    print("矩阵是方阵")
else:
    print("矩阵不是方阵")

# 如果需要将矩阵转换为方阵，可以采取以下方法
if matrix.shape[0] > matrix.shape[1]:
    square_matrix = matrix[:matrix.shape[1], :]
elif matrix.shape[0] < matrix.shape[1]:
    square_matrix = matrix[:, :matrix.shape[0]]
else:
    square_matrix = matrix

print("转换后的方阵形状:", square_matrix.shape)