example_subplot.asv

基础程序

% example_subplot.m
% subplot函数绘制示例
x=linspace(0,2*pi,100);

a=sin(x);
b=2*sin(x).*cos(x);
c=sin(x)./(cos(x)+eps);
% 绘制图形一：
subplot(2,2,1);
plot(x,a,'b*-');
title('figure1: sin(x)');
grid on;
axis([0 2*pi -1 1]);
% 绘制图形二：
subplot(2,2,2);
plot(x,b,'rp-');
title('figure2: 2sin(x)cos(x)');
grid on;
axis([0 2*pi -1 1]);
% 绘制图形三：
subplot('position',[0.2 0.05 0.6 0.40]);
plot(x,c);
title('figure3: sin(x)/(cos(x))');
grid on;
axis([0 2*pi -75 75]);