test is a given integer number is Happy of not?
answer 1 if yes or 0 is no
sorry for that.
Swap the input arguments
Insert zeros into vector
Find the nearest integer
index of n^2 in magic(n)
create numeric palindromes and their square roots
provide the numerical answer to these number questions...
Magic Concentric Circles
Tony's trick for duplicating an mx1 vector n times
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