ex33.m

matlab的教程

figure(1)
t=0:1/(10*pi):4*pi;
y=sin(t).*sin(9*t);
plot(t,y)
title('步长为1/(10*pi)')
xlabel('x轴 0--4*pi')
figure(2)
t=0:1/(100*pi):4*pi;
y=sin(t).*sin(9*t);
plot(t,y)
title('步长为1/(100*pi)')
xlabel('x轴 0--4*pi')