Inserting zeros into another array at values in the second array

Hi, Lets have the following arrays:

A = [8 2 3 5 5 6 7 8 9];

B = [1 3 2 3]

Now, I want to write a code which can insert zeros into A after every location in B. So, my final output would be

F = [8 0 2 3 5 0 5 6 0 7 8 9 0]

Please let me know, what is the most efficient way of coding to implement this?

Thanks

Answer 1

[Matt J]

A = [8 2 3 5 5 6 7 8 9];
B = [1 3 2 3];

F=nan(1,numel(A)+numel(B));
F(cumsum(B)+(1:numel(B)) )=0;
F(isnan(F))=A

F = 1×13

8 0 2 3 5 0 5 6 0 7 8 9 0

Answer 2

[Image Analyst]

This looks like a homework problem. If you have any questions ask your instructor or read the link below to get started:

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