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

318 Solutions
74 Solvers

Last Solution submitted on Jun 15, 2021

Last 200 Solutions

Problem Comments

2 Comments

2 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.

Problem Recent Solvers74

Problem Tags

idempotent matrix projector

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 Solvers74

Suggested Problems

More from this Author139

Problem Tags

Community Treasure Hunt

Problem 3073. Projector Matrix

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers74

Suggested Problems

More from this Author139

Problem Tags

Community Treasure Hunt

Players