matlab 生成随机数应用
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1 %%
2 clc;
3 clear;
4 %%
5 %半径
6 R=2;
7 %生成数据个数
8 n=1000;
9 %%
10 a=2*pi*rand(1,n);
11
12 rx1=R*rand(1,n);
13 x1=sin(a).*rx1;y1=cos(a).*rx1;
14
15 rx2=R*rand(1,n)+R+1;
16 x2=sin(a).*rx2;y2=cos(a).*rx2;
17
18 rx3=R*rand(1,n)+2*R+1+1;
19 x3=sin(a).*rx3;y3=cos(a).*rx3;
20
21 c=0:2*pi/100:2*pi;
22 plot(R*sin(c),R*cos(c),'-b',x1,y1,'r.',x2,y2,'o',x3,y3,'g*')
23 legend('线','类型一','类型二','类型三','-b','r.','o','g*')
