a matrix with a dirac delta function

2020 7 3
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更新时间：2020 7 3
4 次查看（30 天）

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I am having trouble multiply a matrix with a dirac comb.
My matrix is the following
and I am to multiply? it by this Dirac function
to get this:
.
If I just multiply the two together, then I will just get 0's, but I shouldn't. This is my code currently.
for j = 1:n + 1
u_approx_dirac = u_approx * dirac(x - c - j*delta);
end
x is a vector of 3001 elements,
t is a vector of 6001 elements.
Also, c = a for my code.
Please help me directly and not send me to other links. Thank you.

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回答（1 个）

Walter Roberson
Walter Roberson 2020-7-3

0 个投票

Guessing:
for j = 1:n + 1
u_approx_dirac(:,j) = u_approx(:,j) .* dirac(x - c - j*delta);
end

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