How do I create this matrix?

1 Ansicht (letzte 30 Tage)
Sherman Ng
Sherman Ng am 29 Jan. 2022
Kommentiert: Voss am 29 Jan. 2022
Apparently this is supposed to be 4 separate blocks, two of them diagonal and two of them constant. So should I do something like diag(1:50)+diag(5)+diag(50:-1:1)+diag(2) or something like that?

Akzeptierte Antwort

Voss
Voss am 29 Jan. 2022
You're on the right track with diag(), but you need to concatenate the 4 blocks together (you can use ones() (among other functions) to create a constant matrix):
UL = diag(1:50); % upper-left block
LR = diag(50:-1:1); % lower-right block
UR = 5*ones(50); % upper-right block
LL = 2*ones(50); % lower-left block
A = [UL UR; LL LR]; % put them together
disp(A);
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Voss
Voss am 29 Jan. 2022
@Sherman Ng: I appreciate the vote for my answer. Can you also mark the answer as Accepted, if you agree it solves the problem? Thanks!

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