Problem 3073. Projector Matrix

Write a function to determine whether or not the matrix is a projector. Projector matrices are defined as P^2 = P.

Solve

Last Solution submitted on Sep 13, 2024

Binbin Qi on 10 Mar 2015

test 8 is not a symmetric matrix, is it a projector matrix?

goc3 on 10 Mar 2015

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.

CXD on 24 May 2022

And I wonder which kind of code passes the case 1 in test 12, as well as case 3 in test 10. Also test 5.

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