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  1. import numpy as np
  2. a=np.mat('1 -2 1;0 2 -8;-4 5 9')
  3. b=np.array([0,8,-9])
  4. x=np.linalg.solve(a,b)
  5. print(x)
  6.  
Success #stdin #stdout 0.07s 92224KB
stdin
Standard input is empty
stdout
[ 29.  16.   3.]