python homework——the 11th week

9.1 >>> import numpy as np >>> import scipy.linalg as la >>> A=np.random.randn(200,500) >>> B=la.toeplitz([x for x in range(500)]) >>> C=A+A >>> C1=np.dot(A,A.T) >>> C2=np.dot(A.T,A) >>> C3=np.dot(A,B

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