Add files via upload

2026-05-11 00:49:34 +08:00 · 2022-07-15 06:07:14 -04:00
parent 92a96ef01d
commit 20c911e638
25 changed files with 593 additions and 0 deletions
--- a/Book4_Ch04_Python_Codes/Bk4_Ch4_12.py
+++ b/Book4_Ch04_Python_Codes/Bk4_Ch4_12.py
@@ -0,0 +1,21 @@
+
+###############
+# Authored by Weisheng Jiang
+# Book 4  |  From Basic Arithmetic to Machine Learning
+# Published and copyrighted by Tsinghua University Press
+# Beijing, China, 2022
+###############
+
+# Bk4_Ch4_12.py
+
+import numpy as np
+
+A = np.matrix([[1, 2], 
+               [3, 4]])
+
+print(A.I)
+
+B = np.array([[1, 2], 
+              [3, 4]])
+
+print(B.I)