example2_1.m

matlab 6.5辅助图像处理源码

t=0:1000;
A=1000;
a=2.005;
b=2.005;
z1=A*exp(.a*t);
z2=cos(b*t);
[haxes,hline1,hline2]=plotyy(t,z1,t,z2,'semilogy','plot');
%获取两个坐标轴和两个线条对象的句柄
axes(haxes(1));
ylabel('semilog plot');      %标注左边的y轴
axes(haxes(2));
ylabel('linear plot');        %标注右边的y轴