3812/CH1/EX1.6.b/1_6_b.sce


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//draw the waveform of the signal x2(t)=u(t-2)
clc;
clear all;
t=-10:.001:10;
for i=1:length(t)
if t(i)>=2 then
x(i)=1;
else
x(i)=0;
end
end
//figure
plot2d(t,x);
xtitle('Required figure','t','x(t)')