Could anyone help me how to change the values in array

I ma having two array

   A=[1     2
      3     4
      5     6];
  B=[1 2];

I want to change the values present in rows of A which are not equal to B in the following manner

A=[1  2;
   1  2;
   1  2]

Could anyone please help me on it.

Answer 1

[Adam Danz]

A=[1     2
   3     4
   5     6];
  B=[1 2];
  
 A = repmat(B,size(A,1),1)

or

A =  B .* ones(size(A))

[jaah navi]

when i used the command line A = repmat(B,size(A,1),1),it gives the following result A=[1 2;

1 2;

1 2]

IS it possible to change the rows of A one by one

First A=[1 2;

1 2;

5 6]

then A=[1 2;

1 2;

1 2]

Could you please help me on this.

[Adam Danz]

That could be done in a loop, though it's not clear why this would be beneficial.

A=[1     2
   3     4
   5     6];
B=[1     2];

for i = 1:size(A,1)
    A(i,:) = B; 
end

Is that what you're looking for?