test is a given integer number is Happy of not?
answer 1 if yes or 0 is no
sorry for that.
Who Has the Most Change?
Distance walked 2D
High school cafeteria
Detect a number and replace with two NaN's
Find the index of the largest value in any vector X=[4,3,4,5,9,12,0,4.....5]
Is this number Munchhausen Narcissistic?
provide the numerical answer to these number questions...
Create numeric palindromes and their square roots
remove nans fast
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