find the first elements of a column matrix
This would be better as "find the nth element of an array." Also, a column matrix doesn't exist. Perhaps you meant column vector, though the variables in your test cases are row vectors.
Matrix indexing with two vectors of indices
Are you in XY plane?
Matlab Basics - Rounding I
Determine if input is divisible by three.
Find remainder when x is divided by 3
multiply an array by its position number
find a specific element from an matrix
find the mean of all elements in a matrix
Calculating selling price
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