Return the 3n+1 sequence for n
Longest run of consecutive numbers
Flip the vector from right to left
MATLAB Basic: rounding
Draw 'O' !
Element-wise vector product (★)
Create a vector of the first n odd numbers (★)
Remove the row average (★★★)
Get the elements of diagonal and antidiagonal for any m-by-n matrix (★★★★)
Create times-tables (★★★)
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