mch04-27.txt

matlab 图象处理

alpha = 0.01;
beta = 0.5;
t = 0:10;
f = exp(-alpha*t).*sin(beta*t);
stairs(t,f)
hold on
plot(t,f, ':*')
hold off
label = '函数e^{-(\alpha*t)} sin\beta*t的阶梯图';
text(0.5,-0.2,label,'FontSize',14)
xlabel('t = 0:10','FontSize',14)
axis([0 10 -1.2 1.2])