sum first and last number of array

hi, if i had an array of 20 numbers, what code should i use to sum the first and the last, the second and the second to last, etc.

thanks in advance

Answer 1

[José-Luis]

To give you a hint:

 a = randi(10,10,1);
 your_mat = sum([a flipud(a)],2);

Modify to fit your criteria.

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