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
Return elements unique to either input
Sum of diagonals elements of a matrix
Scrabble Scores - 9
Radiation Heat Transfer — View Factors (5)
Rumis Scorer 1
Rule of mixtures (composites) - lower bound
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