Write a function that has the following property: f(f(x)) = -x for any numeric array x.
Note that there is no restriction on the output for f(x). How bizarre can you make it?
This one really surprised me.
Getting a little silly!
Is the Point in a Circle?
Matrix with different incremental runs
poll: would you like the regexp (?@cmd) functionality to be banned in Cody?
Determine the square root
Evaluating a polynomial
Multivariate polynomials - overload multiplication
Find all vampire fangs
Multivariate polynomials - convert monomial form to array
Multivariate polynomials - emulate symbolic form
Product of two multivariate polynomials
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