完成作业321

2026-04-21 11:25:12 +08:00
parent 4892ed88c3
commit ea4699acbc
3 changed files with 58 additions and 0 deletions
--- a/题目3.py
+++ b/题目3.py
@@ -0,0 +1,15 @@
+import numpy as np
+
+A = np.array([3, 4])
+B = np.array([1, 2])
+
+A_plus_B = A + B
+print("1. A + B =", A_plus_B)
+
+two_A = 2 * A
+print("2. 2 * A =", two_A)
+
+norm_A = np.linalg.norm(A)
+print("3. 向量 A 的长度 =", norm_A)
+
+print("-" * 40)