31 lines
629 B
Python
31 lines
629 B
Python
import numpy as np
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A = np.array([[1, 2, 3, 4],
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[2, 3, 4, 1],
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[3, 4, 1, 2],
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[4, 1, 2, 3]])
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B = np.array([[5, 4, 3, 2],
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[4, 3, 2, 5],
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[3, 2, 5, 4],
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[2, 5, 4, 3]])
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b = np.array([[1],
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[2],
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[3],
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[4]])
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#Task A:
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print("Ab:\n", A @ b)
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print("Bb:\n", B @ b)
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print("A^T:\n", A.T)
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print("B^T:\n", B.T)
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print("A^TA:\n", A.T @ A)
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print("B^TB:\n", B.T @ B)
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#Task B:
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print("4. Zeile von A x 2. Spalte von B:\n", A[3, :] @ B[:, 1])
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#Task C:
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print("Spaltensumme A:\n", A.sum(0))
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print("Zeilensumme B:\n", B.sum(1)) |