function shili10

h0=figure(‘toolbar’,’none’,…

‘position’,[200 150 450 400],…

‘name’,’实例10′);

a=0.01;

b=0.5;

t=0:10;

f=exp(-a*t).*sin(b*t);

stairs(t,f)

hold on

plot(t,f,’:*’)

hold off

glabel=’函数e^{-(\alpha*t)}sin\beta*t的阶梯图’;

gtext(glabel,’fontsize’,16)

xlabel(‘t=0:10′,’fontsize’,16)

axis([0 10 -1.2 1.2])