'Write a script'. Actually, they're functions.
Sum of diagonal of a square matrix
Sum the 'edge' values of a matrix
Square the input
Finding perimeter of a rectangle
Matlab Basics II - Minimum
Matlab Basics II - Count rows in a matrix
Replace every 3rd element in a vector with 4
Matlab Basics II - Velocity of a particle
Matlab Basics II - Determine if an array has a 3rd dimension
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