Asked by Ayob
on 19 Apr 2013

I want to convert a vector to a row of a matrix in a special situation which is necessary to resize it too as I explain.

for example:

vector A=[1 2 3]

should be the second row of matrix B in a special situation as shown below,as you see in the second row of the matrix B,after every two element zero we have a element of vector A.

B=[a b c d e f g h i; 0 0 1 0,0 2 0 0 3; a1 b1 c1 d1 e1 f1 g1 h1 i1; .. .. .. .. .. .. .. .. ..;]

My program is a large one and I need the way which is fast.

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Answer by Azzi Abdelmalek
on 19 Apr 2013

A=[1 2 3] B=[5 5 5 5 5 5 5 5 5;0 0 0 0 0 0 0 0 0;4 4 4 4 4 4 4 4 4] n=size(B,2) id=fix(n/3); B(2,id:id:n)=A

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