From bcbe2bd9dd1d87878e384e43ae2d319a64fc3e40 Mon Sep 17 00:00:00 2001
From: 2509165005 <2509165005@student.edu.cn>
Date: Thu, 23 Apr 2026 16:00:00 +0800
Subject: [PATCH] =?UTF-8?q?=E5=AE=8C=E6=88=90=E4=BD=9C=E4=B8=9AX?=
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---
 作业.py | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 作业.py

diff --git a/作业.py b/作业.py
new file mode 100644
index 0000000..0d29466
--- /dev/null
+++ b/作业.py
@@ -0,0 +1,36 @@
+import numpy as np
+import matplotlib.pyplot as plt
+
+try:
+    plt.rcParams['font.sans-serif'] = ['SimHei', 'Noto Sans CJK SC', 'WenQuanYi Micro Hei']
+    plt.rcParams['axes.unicode_minus'] = False
+except:
+    pass  
+
+fig, ax = plt.subplots(figsize=(8, 8))
+
+vectors = {
+    'A = [2, 3]': np.array([2, 3]),
+    'B = [4, 1]': np.array([4, 1]),
+    'C = [1, 1]': np.array([1, 1]),
+}
+
+colors = ['red', 'blue', 'green']
+for (name, vec), color in zip(vectors.items(), colors):
+    ax.annotate('', xy=vec, xytext=(0, 0),
+                arrowprops=dict(arrowstyle='->', color=color, lw=2))
+    ax.text(vec[0]+0.1, vec[1]+0.1, name, fontsize=12, color=color)
+
+ax.axhline(y=0, color='black', linewidth=0.5)
+ax.axvline(x=0, color='black', linewidth=0.5)
+
+ax.set_xlim(-0.5, 5.5)
+ax.set_ylim(-0.5, 4)
+ax.set_xlabel('x (abscissa)', fontsize=12)
+ax.set_ylabel('y (ordinate)', fontsize=12)
+ax.set_title('2D Vector Visualization', fontsize=14)
+ax.grid(True, alpha=0.3)
+ax.set_aspect('equal')
+
+plt.show()
+print("Note: Arrows represent vectors. Endpoint of arrow = vector endpoint")
\ No newline at end of file