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Book4_Ch04_Python_Codes/Bk4_Ch4_14.py

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+
+###############
+# Authored by Weisheng Jiang
+# Book 4  |  From Basic Arithmetic to Machine Learning
+# Published and copyrighted by Tsinghua University Press
+# Beijing, China, 2022
+###############
+
+# Bk4_Ch4_14.py
+
+import numpy as np
+
+A = np.array([[1,2],
+              [3,4]])
+
+B = np.array([[5,6],
+              [7,8]])
+
+# Hadamard product
+A_times_B_piecewise = np.multiply(A,B)
+A_times_B_piecewise_V2 = A*B