题解 | 基向量变换矩阵
基向量变换矩阵
https://www.nowcoder.com/practice/a0e2d8b51a40444e888b8f007b011f09
import numpy as np
def transform_basis(B, C):
pass
if B.shape!=(3,3) or C.shape!=(3,3):
return -1
return (np.linalg.inv(C) @ B).tolist()
if __name__ == "__main__":
B = np.array(eval(input()))
C = np.array(eval(input()))
print(transform_basis(B, C))
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