Write a function to determine whether or not the matrix is a projector. Projector matrices are defined as P^2 = P.
test 8 is not a symmetric matrix, is it a projector matrix?
Sorry about that one. I've removed that test case. I don't know how long it will take for the re-scoring to propagate, though.
The Goldbach Conjecture
Bottles of beer
Set some matrix elements to zero
Is it an Armstrong number?
Consecutive Equation Times (of the day)
Scrabble Scores - 3
Self-similarity 2 - Every third term
Scrabble Scores - 10
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