# how to write special matrices

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safwan shraideh on 6 Dec 2020
Commented: safwan shraideh on 7 Dec 2020
how can I write this matrix
a=[0 0 0 0;
0 0 0 1;
0 0 1 0;
0 0 1 1;
0 1 0 0;
0 1 0 1;
0 1 1 0;
0 1 1 1;
1 0 0 0;
1 0 0 1;
1 0 1 0;
1 0 1 1;
1 1 0 0;
1 1 0 1;
1 1 1 0;
1 1 1 1;]
using for loop?
##### 2 CommentsShowHide 1 older comment
safwan shraideh on 6 Dec 2020
Ok Kalyan, but this is not matrix, this is char. Can you help me again?

Bruno Luong on 6 Dec 2020
Edited: Bruno Luong on 6 Dec 2020
>> dec2bin(0:2^4-1)-'0'
ans =
0 0 0 0
0 0 0 1
0 0 1 0
0 0 1 1
0 1 0 0
0 1 0 1
0 1 1 0
0 1 1 1
1 0 0 0
1 0 0 1
1 0 1 0
1 0 1 1
1 1 0 0
1 1 0 1
1 1 1 0
1 1 1 1
safwan shraideh on 7 Dec 2020
Thank you Bruno.

Walter Roberson on 6 Dec 2020
You can use the "odometer" code pattern.
safwan shraideh on 7 Dec 2020
Thanks Walter.

Setsuna Yuuki. on 6 Dec 2020
I think it is not very efficient, but works
a = dec2bin(0:15);
i = 1;
while i<17
c = randi([0 1],1,4);
if(a(i,1:4) == sprintf('%g',c))
b(i,1:4) = c;
i = i+1;
end
end
b =
0 0 0 0
0 0 0 1
0 0 1 0
0 0 1 1
0 1 0 0
0 1 0 1
0 1 1 0
0 1 1 1
1 0 0 0
1 0 0 1
1 0 1 0
1 0 1 1
1 1 0 0
1 1 0 1
1 1 1 0
1 1 1 1
safwan shraideh on 7 Dec 2020
It is not efficient, but thanks for your effort Bastian.