Simple version of creating a matrix

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!

Answer 1

[Jesus Sanchez]

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];

Answer 2

[Mario Malic]

You can fill all entries with either 'ones' or 'zeros', then change the rest:

Aeq = zeros(1,20);
Aeq (1,1:10) = ones;