MATLAB: How to add limited row to specific row

for loopif statementimage processingMATLABmatrix

Hello all I'm student I'll be glad to help me to solve below problem, that I've two matrices A is 2×9 and B is 6×3,
A= zeros(2,9)
A =
   0     0     0     0     0     0     0     0     0
   0     0     0     0     0     0     0     0     0
  B=round(10*rand(6,3))
B =
   7     6     9
   6     7     8
   4     1     7
   1     1     1
   8     5     1
   3     5     1
by using these codes I want to add first three row of matrix B to first row of A and second three rows of matrix B to second row of matrix A by using these codes :::
for i=1:6
        if i<=3     
            x=x(y,:)
        else 
       end           
    end
I tried I don't know how inside if condition

Best Answer

A= zeros(2,9);
B = [7     6     9
   6     7     8
   4     1     7
   1     1     1
   8     5     1
   3     5     1];
out = reshape(B',fliplr(size(A)))'
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