You do not need to call this function in a loop
Get rid of the loop when you call the function.
You don't state this in your question, but presumably you are calling this function in a loop. The answer to your question would be then to stop calling the function in a loop. During my testing of your function it works white well with a 130x2 input matrix, and returns the result for each pair (row) as a column in the output matrix. Why does it work? Because the function already has a loop built into it, and it already puts all of those vectors into one matrix.
So you are asking how to do something that the function already does!
All you need is this:
[5x130 matrix] = compute_c([130x2 matrix])
for example:
outMat = compute_c(inpMat)
Addendum This question is a classic example of why badly written code causes more problems than it solves. The author of this code did not write any code comments, did not explain any of the algorithm, added no help section, no references, the code is badly formatted and had random empty lines that make it hard to follow.
If this code had been correctly formatted, indented, and had some comments explaining what it does, then this question would have been answered by simply reading the code itself.
Although beginners seem to think that this advice is just given by grumpy academics trying to get in the way of them "writing real code", in fact code best practice of writing comments, indention, formatting correctly, etc, helps everyone to understand what code does, how to use it, and how to fix it...
