Need help on array multiplication

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I need help with the following
u1=[2 3 1 0];
u2=[2 1 3 0];
u3=[2 3 1 3];
u=[u1 u2 u3];
v1=mod(u1+u3,4)=[0 2 2 3]
v2=mod(u1+u2+u3,4)=[2 3 1 3]
v3=u3=[2 3 1 3]
v4=mod(u2+u3,4)=[0 0 0 3]
GRL=[1 1 0 0;0 1 0 1;1 1 1 1];
How can I use the multiplication similar to v=u*GRL to obtain the above results?
  1 个评论
sushanth govinahallisathyanarayana
Yes, but you also need mod 4 operation.
for example, v1= mod([u1,u3][1;1] , 4)
assuming u1 and u3 are column vectors

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