My approach:
A = randi(99, 16); % Create Matrix
data = 26;
row = fix(data/10)
col = rem(data,10)
Desired_Element = A(row,col)
EDIT — I have no idea how you would format references to elements (5,10), (10,5) or (16,16) since you did not give an example of those. My code here works for the problem you posted (single-digit subscripts), but would have to be revised to generalise to those other conditions, depending on how you format your ‘data’ reference.
