Problem 1038. Change the sign of even index entries of the reversed vector

Created by Selvaraaju Murugesan

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>change the signs of the even index entries of the reversed vector</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/><w:jc w:val=\"left\"/></w:pPr><w:r><w:t>example 1 vec = [4 -1 -2 9] ans = [9 2 -1 -4]</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/><w:jc w:val=\"left\"/></w:pPr><w:r><w:t>example2 vec = [-4 -1 -2 -9] ans = [-9 2 -1 4]</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

732 Solutions
296 Solvers

Last Solution submitted on Jan 11, 2021

Last 200 Solutions

Problem Comments

1 Comment

1 Comment

goc3 on 18 Nov 2016

The test suite has been expanded.

Solution Comments

Solution 164106

1 Comment

1 Comment

yurenchu on 14 Apr 2017

Clever

Problem Recent Solvers296

Problem Tags

qmf vectors

Community Treasure Hunt

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

Start Hunting!

Problem 1038. Change the sign of even index entries of the reversed vector

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers296

Suggested Problems

More from this Author9

Problem Tags

Community Treasure Hunt

Problem 1038. Change the sign of even index entries of the reversed vector

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers296

Suggested Problems

More from this Author9

Problem Tags

Community Treasure Hunt

Players