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.
Check to see if a Sudoku Puzzle is Solved
Rotate a Matrix
Create a vector whose elements depend on the previous element
Fibonacci-Sum of Squares
Multiply by 3
Is it really a 5?
5th Time's a Charm
Approximation of Pi
The 5th Root
Consecutive Equation Times (of the day)
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