The problem description is broken(?) and you have mentioned the code in the test suite (you might want to remove that)
The test suite has had the "solution" code removed. The description was also cleaned up. (If it's not loading, simply reload the page.) I'm not sure how much these fixes help, though...
Is the Point in a Circle?
convert matrix to single column
Add a row of zeros on top of a matrix
Integer or Float?
Find out magnitude of vector
provide the numerical answer to these number questions...
Is this number Munchhausen Narcissistic?
Create numeric palindromes and their square roots
is the number happy?
Magic Concentric Circles
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