Question

MATLAB怎么画f (t) = (1+ cosπt)[u(t) − u(t − 2)]的波形

Answer 1

t=-2:0.01:5;
f1=1+cos(pi*t);
f2=(t>=0)-(t>=2);
ft=f1.*f2;
plot(t,ft)

Answer 2

t=-2:0.01:5;
f1=1+cos(pi*t);
f2=heaviside(t);
f3=heaviside(t-2);
ft=f1.*(f2-f3);
plot(t,ft);