'Write a script'. Actually, they're functions.
Sum of diagonal of a square matrix
middleAsColumn: Return all but first and last element as a column vector
What is Sum Of all elements of Matrix
Find out total non zero element of matrix
Matlab Basics II - Minimum
Matlab Basics - Assigning Variables
Matlab Basics II - Log and natural log
Matlab Basics II - Create a vector with a repeated entry
Matlab Basics II - squares
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