-
源程序(时移,反转,尺度变换)
t=linspace(0,2*pi,200);
y1=2*cos(3*t);
y2=2*cos(-3*t);
y3=2*cos(3*(t-5));
y4=3*cos(5*(t-5));
subplot(2,2,1),plot(t,y1),title(
'2*co
s(3*t)'
);
subplot
(2,2,2),plot(t,y2),title(
'2*cos(-3*t)'<
/p>
);
subplot(2,2,3),
plot(t,y3),title(
'2*cos(3*(t-5))'
);
subplot(2,2,4),plot(
t,y4),title(
'3*cos(5*(t-5))'
)