文档介绍：MATLAB实用程序百例
实例1:三角函数曲线(1)
function shili01
h0=figure('toolbar','none',...
'position',[198 56 350 300],...
'name','实例01');
h1=axes('parent',h0,...
'visible','off');
x=-pi::pi;
y=sin(x);
plot(x,y);
xlabel('自变量X');
ylabel('函数值Y');
title('SIN( )函数曲线');
grid on
实例2:三角函数曲线(2)
function shili02
h0=figure('toolbar','none',...
'position',[200 150 450 350],...
'name','实例02');
x=-pi::pi;
y=sin(x)+cos(x);
plot(x,y,'-*r','linewidth',1);
grid on
xlabel('自变量X');
ylabel('函数值Y');
title('三角函数');
file:///E|/Document/发展篇/M&M/竞赛篇/常用算法/matlab 实例/[2010/5/14 1:14:29]
实例3:图形的叠加
function shili03
h0=figure('toolbar','none',...
'position',[200 150 450 350],...
'name','实例03');
x=-pi::pi;
y1=sin(x);
y2=cos(x);
plot(x,y1,...
'-*r',...
x,y2,...
'--og');
grid on
xlabel('自变量X');
ylabel('函数值Y');
title('三角函数');
实例4:双y轴图形的绘制
function shili04
h0=figure('toolbar','none',...
'position',[200 150 450 250],...
'name','实例04');
x=0:900;a=1000;b=;
y1=2*x;
y2=cos(b*x);
[haxes,hline1,hline2]=plotyy(x,y1,x,y2,'semilogy','plot');
axes(haxes(1))
ylabel('semilog plot');
file:///E|/Document/发展篇/M&M/竞赛篇/常用算法/matlab 实例/[2010/5/14 1:14:29]
axes(haxes(2))
ylabel('linear plot');
实例5:单个轴窗口显示多个图形
function shili05
h0=figure('toolbar','none',...
'position',[200 150 450 250],...
'name','实例05');
t=0:pi/10:2*pi;
[x,y]=meshgrid(t);
subplot(2,2,1)
plot(sin(t),cos(t))
axis equal
subplot(2,2,2)
z=sin(x)-cos(y);
plot(t,z)
axis([0 2*pi -2 2])
subplot(2,2,3)
h=sin(x)+cos(y);
plot(t,h)
axis([0 2*pi -2 2])
subplot(2,2,4)
g=(sin(x).^2)-(cos(y).^2);
plot(t,g)
axis([0 2*pi -1 1])
实例6:图形标注
function shili06
h0=figure('toolbar','none',...
file:///E|/Document/发展篇/M&M/竞赛篇/常用算法/matlab 实例/[2010/5/14 1:14:29]
'position',[200 150 450 400],...
'name','实例06');
t=0:pi/10:2*pi;
h=plot(t,sin(t));
xlabel('t=0到2\pi','fontsize',16);
ylabel('sin(t)','fontsi