Modulo-2 matrix multiplication

Hi.

I would like to know whether its possible to have the following multiplication and how it can be perfromed.

a=[1 1];

b=[0 0];

c=[1 0];

X=[a b c];

Y=[1 1 0;1 0 1; 0 1 0];

Z=mod(X*Y, 2);

I am expecting Z=[a+b,a+c,b], the addition is modulo-2 addition. The final output should be Z=[110100];

Thank you.

Answer 1

[Dyuman Joshi]

size(X) = [1 6];
size(Y) = [3 3];

X and Y are not compatible for multiplcation given their sizes.

You can do something like this -

X = [a;b;c];            %size(X) = [3 2]
Z = mod(Y*X,2);
Z = [1 1; 0 1; 0 0];
Z = reshape(Z,1,[]);
Z = [1 1 0 1 0 0];      %If you want it to be a number and not an array, use polyval(z,10)

[Ronald Niwamanya]

needed to add transpose on Z, (Z = mod(Y*X,2)') . Thank you very much.

[Dyuman Joshi]

If my answer helped you solve your problem, kindly accept it!