How to create this matrix without using loop?

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Andy Lau
Andy Lau le 12 Oct 2018
Commenté : Image Analyst le 13 Oct 2018
Hi,
I was wondering how to create this gradient matrix without using a loop ?
1 1 1 1 1
1 4 4 4 4
1 4 9 9 9
1 4 9 16 16
1 4 9 16 25
I already have the main diagonal completed using the following
x = 1 + cumsum(3:2:9)
I don't know how to do the rest, any help would be great.
Andy

Réponses (1)

Matt J
Matt J le 13 Oct 2018
Modifié(e) : Matt J le 13 Oct 2018
a=cumsum(1:2:9);
result=min(a,a.'),

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