Using explicit iteration is not the most efficient way of solving this problem, but if you do choose to iterate I would suggest using "linear indexing", per https://au.mathworks.com/help/matlab/math/matrix-indexing.html?s_tid=doc_srchtitle#f1-85511
Getting logical indexes
Sum the 'edge' values of a matrix
Matlab Basics II - Max & Index of Max
Multiply by 3
Calculate volume of box
Calculate feeling temperature before climbing a mountain
Delete the column with all 0 !
Probability of red tulips (at both ends of a row)
Probability of red tulips
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