Convert a given number to its Roman representation.
For example, if the number is 98, it should display 'XCVIII'
copy of Problem 63.
Remove the small words from a list of words.
Remove NaN ?
Number of toolboxes?
Length of a short side
Concatenate two strings
Create the following sequence : 0 1 1 4 9 25 64 169 ...
Find the dimensions of a matrix
Find the square of the sum of the digits of a number
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