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Simple version of creating a matrix

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Ricardo López
Ricardo López on 3 Mar 2020
Closed: MATLAB Answer Bot on 20 Aug 2021
Hello people,
I would like to know if someone has a quick way of writing this matrix using 'ones' and 'zeros':
Aeq=[1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,1;0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,-1];
Many thanks!

Answers (2)

Jesus Sanchez
Jesus Sanchez on 3 Mar 2020
Edited: Jesus Sanchez on 3 Mar 2020
One possibility is to concatenate them at the same time that they are created using zeros and ones. So something like this:
Aeq=[1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,1;0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,-1];
Aeq2 = [ones(1,9) zeros(1,10) 1 ; ...
zeros(1,9) ones(1,10) -1];

Mario Malic
Mario Malic on 3 Mar 2020
You can fill all entries with either 'ones' or 'zeros', then change the rest:
Aeq = zeros(1,20);
Aeq (1,1:10) = ones;

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