import numpy as np

输入3x3的矩阵

matrix = np.zeros((3,3)) for i in range(3): for j in range(3): matrix[i][j] = float(input("请输入第%d行，第%d列的元素：" % (i+1, j+1)))

计算特征向量和特征值

eigenvalues, eigenvectors = np.linalg.eig(matrix)

输出特征向量和特征值

print("特征值为：", eigenvalues) print("特征向量为：", eigenvectors)