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.
Most nonzero elements in row
The Goldbach Conjecture, Part 2
Remove NaN ?
Number of Horns on a unicorn!
Divisible by 3
Tic-Tac-Logic - Solution Checker
Stress-Strain Properties - 3
Mechanical Advantage of a Gear Train
Self-similarity 3 - Every other pair of terms
Scrabble Scores - 6
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