Problem 579. Spiral In

Created by Nicholas Howe

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>Create an m by n matrix filled with sequential integers starting from 1 and arranged in a counterclockwise spiral that hugs the outside border and begins in the upper left corner.</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>For example:</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"code\"/></w:pPr><w:r><w:t><![CDATA[>> spiralIn(4,5)\nans =\n   1    14    13    12    11\n   2    15    20    19    10\n   3    16    17    18     9\n   4     5     6     7     8]]></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

239 Solutions
75 Solvers

Last Solution submitted on May 04, 2022

Last 200 Solutions

Problem Comments

3 Comments

3 Comments

Richard Zapor on 11 May 2012

Tag "Recursion" would help in problem type classification

Ned Gulley on 11 May 2012

Richard, you can add tags whenever you want. Just click on "Add Tags".

Nicholas Howe on 17 May 2012

Good suggestion, although not all solutions proposed have been recursive. Thanks!

Problem Recent Solvers75

Problem Tags

matrix spiral recursion

Community Treasure Hunt

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

Start Hunting!

Problem 579. Spiral In

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers75

Suggested Problems

More from this Author11

Problem Tags

Community Treasure Hunt

Problem 579. Spiral In

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers75

Suggested Problems

More from this Author11

Problem Tags

Community Treasure Hunt

Players