How to draw the delta signal in matlab

I was trying to draw but I wasn't able to

Answer 1

[the cyclist]

Do you mean the Dirac delta function? If so, then dirac might help you.

Also, if you do mean the Dirac delta, I hope you realize that it can't truly be "drawn", because it goes to infinity. It can be represented somehow (e.g. by drawing an arrow at the x location where the Delta is).

[Juman Saleh]

i know the function but how to plot d(t-1)

Answer 2

[Star Strider]

The function normally will not plot in MATLAB because it has infinite amplitude and infinitesimal width.

So it is necessary to approximate it in ordfer to plot it —

t = linspace(0, 2, 21);
Delta = dirac(t - 1)

Delta = 1×21

0 0 0 0 0 0 0 0 0 0 Inf 0 0 0 0 0 0 0 0 0 0

idx = Delta == Inf;
Delta(idx) = 1;

figure
stem(t, Delta, 'filled')
axis('padded')

.