Problem 859. Get the elements of diagonal and antidiagonal for any m-by-n matrix

Created by Aurelien Queffurust

Solve Later

{"relationships":[{"relationshipType":"http://schemas.mathworks.com/matlab/code/2013/relationships/document","targetMode":"","relationshipId":"rId1","target":"/matlab/document.xml"},{"relationshipType":"http://schemas.mathworks.com/matlab/code/2013/relationships/output","targetMode":"","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\"?>\n<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>In the problem</w:t></w:r><w:r><w:t> </w:t></w:r><w:hyperlink w:docLocation=\"http://www.mathworks.com/matlabcentral/cody/problems/858-permute-diagonal-and-antidiagonal\"><w:r><w:t>Problem 858. Permute diagonal and antidiagonal</w:t></w:r></w:hyperlink><w:r><w:t> created by</w:t></w:r><w:r><w:t> </w:t></w:r><w:hyperlink w:docLocation=\"http://www.mathworks.com/matlabcentral/cody/players/343082-jean-marie-sainthillier\"><w:r><w:t>Jean-Marie SAINTHILLIER</w:t></w:r></w:hyperlink><w:r><w:t> the test suite is only based on squared m-by-m matrix .</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>In this problem you must submit a solution which</w:t></w:r><w:r><w:t> </w:t></w:r><w:r><w:rPr><w:b/></w:rPr><w:t>returns the diagonal and anti-diagonal elements without using the DIAG function</w:t></w:r><w:r><w:t> for any</w:t></w:r><w:r><w:t> </w:t></w:r><w:r><w:rPr><w:b/></w:rPr><w:t>m-by-n matrix</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>Example:</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>If the input is a matrix 4*3</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"code\"/></w:pPr><w:r><w:t><![CDATA[x =  [ 0     0     0\n       1    48    17\n       0     2    99\n       14    0    3]]]></w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>we expect</w:t></w:r><w:r><w:t> </w:t></w:r><w:r><w:rPr><w:b/></w:rPr><w:t>2 output vectors</w:t></w:r><w:r><w:t>:</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"code\"/></w:pPr><w:r><w:t><![CDATA[dg_elements = [0 48 99] % diagonal elements\n\nantidg_elements = [14 2 17 ] % anti-diagonal elements]]></w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>Note : You do not have to permute anything. Just return the elements.</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

1380 Solutions
339 Solvers

Last Solution submitted on Oct 24, 2021

Last 200 Solutions

Problem Comments

2 Comments

2 Comments

Clément E. on 28 May 2018

I really don't see the point of that kind of problems where you can't use Matlab built-in functions.

Fazle Rabbi Riyad on 18 Oct 2018

which functions?

Problem Recent Solvers339

Problem Tags

Community Treasure Hunt

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

Start Hunting!

Problem 859. Get the elements of diagonal and antidiagonal for any m-by-n matrix

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers339

Suggested Problems

More from this Author30

Problem Tags

Community Treasure Hunt

Problem 859. Get the elements of diagonal and antidiagonal for any m-by-n matrix

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers339

Suggested Problems

More from this Author30

Problem Tags

Community Treasure Hunt

Players