20251117

2025-11-17 11:16:02 +08:00
parent 4bd2d87fc4
commit 1b3b07a7f6
35 changed files with 454 additions and 0 deletions
@@ -0,0 +1,25 @@
+% 练习2第1-4题
+% 1
+A=[6,9,3;2,7,5];
+B=[2,4,1;4,6,8];
+A+B
+A*B
+A*B'
+
+% 2
+clear
+A=[3,2,0,1,5];
+roots(A)
+
+% 3
+clear
+A = [4,9,2;7,6,4;3,5,7];
+B = [37;26;28];
+A\B
+
+% 4
+syms x
+f = 3*x^4-12*x^3-5*x+9;
+int (f,x)
+diff(f,x)
+int(f,x,0,2)