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.
Back to basics 7 - Equal NaNs
Rotate and display numbered tile
Multiply 2 numbers
y equals x divided by 2
5th Time's a Charm
Stress-Strain Properties - 5
Divisible by n, prime divisors from 20 to 200
Stress-Strain Properties - 7
Stress-Strain Properties - 4
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