From 880e898e56f0ea542aafe512ea4dda0a0daaef88 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=97=AD=E6=97=A5=E4=B8=9C=E5=8D=87?=
 <8113091+xrdspxd@user.noreply.gitee.com>
Date: Mon, 19 Oct 2020 14:35:07 +0800
Subject: [PATCH] add homework_02_numpy_matplotlib/2.3.text.

---
 homework_02_numpy_matplotlib/2.3.text | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 homework_02_numpy_matplotlib/2.3.text

diff --git a/homework_02_numpy_matplotlib/2.3.text b/homework_02_numpy_matplotlib/2.3.text
new file mode 100644
index 0000000..21ac801
--- /dev/null
+++ b/homework_02_numpy_matplotlib/2.3.text
@@ -0,0 +1,14 @@
+import numpy as np
+Z = np.zeros((8,8),dtype=int)
+Z[1::2,::2] = 1
+Z[::2,1::2] = 1
+print(Z)
+给定一个方程组，如何求出其的方程解。有多种方法，分析各种方法的优缺点（最简单的方式是消元方）。
+import numpy as np
+a=np.array([[3,4,2],[5,3,4],[8,2,7]])
+A=np.linalg.inv(a)
+print(A)
+b=np.array([10,14,2])
+print(b)
+x=np.dot(b,A)
+print(x)
-- 
Gitee