I think there is a problem with the test or tests, since even the default solution fails to evaluate with 'Parse error' indicated.
I agree. Function names cannot start with numbers, so this problem should be revised.
The server encountered an error while evaluating the solution.
Is A the inverse of B?
Return elements unique to either input
Create matrix of replicated elements
find radius of cone
length of a vector
Back to basics 18 - justification
Back to basics 24 - Symbolic variables
Back to basics 22 - Rotate a matrix
Back to basics 2 - Function Path
Convert Hard Drive marketing sizes to actual data sizes
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