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.
Replace Vector Elements
Basics: 'Find the eigenvalues of given matrix
Approximation of Pi
Sphenic number sequence
I Plead the Fifth
Pattern Recognition 3 - Variable Unit and Array Length (including cell arrays)
Rumis Scorer 4
5 Prime Numbers
Lights Out 11 - 5x5, with wrapping, x moves
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