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18 lines
374 B
Python
18 lines
374 B
Python
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###############
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# Authored by Weisheng Jiang
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# Book 4 | From Basic Arithmetic to Machine Learning
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# Published and copyrighted by Tsinghua University Press
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# Beijing, China, 2022
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###############
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# Bk4_Ch4_13.py
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import numpy as np
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A = np.array([[1, -1, 0],
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[3, 2, 4],
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[-2, 0, 3]])
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# calculate trace of A
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tr_A = np.trace(A)
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