How to write delta in matlab?

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SZ N
SZ N le 16 Oct 2020
Réponse apportée : Walter Roberson le 24 Oct 2023
x2[n]= 2delta[n] - u[n - 1] + u[n - 3]
How to I type this in matlab? Like what is the syntax for delta in matlab?
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SZ N
SZ N le 16 Oct 2020
Like in this question. How do i tyoe it in matlab? It is givig me an error while typing delta.
The error:
Ragab
Ragab le 24 Oct 2023
\delta(t)

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Réponses (2)

madhan ravi
madhan ravi le 16 Oct 2020
Walter Roberson
Walter Roberson le 24 Oct 2023
Ran in:
Like what is the syntax for delta in matlab?
MATLAB does not have the delta operator. The suggested dirac() does not work for this purpose:
n = [-1 0 1]
n = 1×3
-1 0 1
dirac(n)
ans = 1×3
0 Inf 0
dirac(sym(n))
ans = 
but your delta function should be 1 at parameter 0.
You need to define it yourself, such as
delta = @(x) double(x==0);
delta(n)
ans = 1×3
0 1 0

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