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.
Back to basics 7 - Equal NaNs
Check if number exists in vector
Matlab Basics II - squares
Test Problem; Create a 5x5 array containing all ones
find a specific element from an matrix
modulus of a number
multiply an array by its position number
Calculating selling price
Determine whether the input is divisible by 3 as well as 5
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