主题：【讨论】给大家出一道初中数学题 -- 迷途笨狼

import numpy as np

L = 40

S_sq = L**2

S_circle = np.pi*(L/2)**2

S_fan = np.pi*(L)**2/4

x = None

M = [

[1, 2, 1, 0, 0],

[0,-2, 1,-1, 0],

[2, 0 ,0, 0 ,1],

[0, 0, 0, 2, 1],

[0, 0, 1, 0, 0]

]

Bs = [S_sq-S_fan,

0 ,

S_circle,

2*S_fan-S_sq,

(S_sq-S_circle)/4]

print(np.dot(Bs, np.linalg.inv(M)))

tmd singular！！！！！

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