test is a given integer number is Happy of not?
answer 1 if yes or 0 is no
sorry for that.
Maximum running product for a string of numbers
Remove the air bubbles
Remove NaN ?
Replicate elements in vectors
Vectors counting by 2
create numeric palindromes and their square roots
Magic Concentric Circles
Tony's trick for duplicating an mx1 vector n times
provide the numerical answer to these number questions...
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