Problem 3073. Projector Matrix

Created by goc3

Solve Later

{"relationships":[{"relationshipType":"http://schemas.mathworks.com/matlab/code/2013/relationships/document","relationshipId":"rId1","target":"/matlab/document.xml"},{"relationshipType":"http://schemas.mathworks.com/matlab/code/2013/relationships/output","relationshipId":"rId2","target":"/matlab/output.xml"}],"parts":[{"partUri":"/matlab/document.xml","relationship":[],"contentType":"application/vnd.mathworks.matlab.code.document+xml","content":"<?xml version=\"1.0\" encoding=\"UTF-8\"?><w:document xmlns:w=\"http://schemas.openxmlformats.org/wordprocessingml/2006/main\"><w:body><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>Write a function to determine whether or not the matrix is a projector. Projector matrices are defined as P^2 = P.</w:t></w:r></w:p></w:body></w:document>"},{"partUri":"/matlab/output.xml","contentType":"text/xml","content":"<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\" ?><embeddedOutputs><metaData><evaluationState>manual</evaluationState><layoutState>code</layoutState><outputStatus>ready</outputStatus></metaData><outputArray type=\"array\"/><regionArray type=\"array\"/></embeddedOutputs>"}]}

Solve

Solution Stats

387 Solutions
99 Solvers

Last Solution submitted on Mar 14, 2023

Last 200 Solutions

Problem Comments

3 Comments

3 Comments

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.

Problem Recent Solvers99

Problem Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Problem 3073. Projector Matrix

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers99

Suggested Problems

More from this Author139

Problem Tags

Community Treasure Hunt

Problem 3073. Projector Matrix

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers99

Suggested Problems

More from this Author139

Problem Tags

Community Treasure Hunt

Players