Problem 2442. Magnet and Iron

Created by rifat

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>(Inspired from</w:t></w:r><w:r><w:t> </w:t></w:r><w:hyperlink w:docLocation=\"http://www.mathworks.com/matlabcentral/cody/problems/112\"><w:r><w:t>Problem 112: Remove the air bubbles</w:t></w:r></w:hyperlink><w:r><w:t>)</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>Iron (atomic number = 26) is strongly attracted by magnet. The input matrix contains some iron elements (26). I placed two strong magnetic bars above the top row and below the bottom row. What will be state of the matrix after the iron elements have moved due to attraction? Elements equidistant from both magnets will not change their positions.</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=\"code\"/></w:pPr><w:r><w:t><![CDATA[ Input =\n\n       1    26\n       3    26\n      26    26\n       0     0\n     -12   NaN\n      26    26\n\n Output =\n      26    26\n       1    26\n       3    26\n       0     0\n     -12   NaN\n      26    26]]></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

262 Solutions
69 Solvers

Last Solution submitted on Jul 17, 2021

Last 200 Solutions

Problem Comments

2 Comments

2 Comments

shahriar memaran on 18 Apr 2017

In test 1 why the iron in x(4,1) did not moved to the top !?

juedi myro eugenio on 31 Mar 2018

x(4,1) is equidistant to both upper and lower magnet, that's why...

Problem Recent Solvers69

Problem Tags

matrix manipulation

Community Treasure Hunt

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

Start Hunting!

Problem 2442. Magnet and Iron

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers69

Suggested Problems

More from this Author44

Problem Tags

Community Treasure Hunt

Problem 2442. Magnet and Iron

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers69

Suggested Problems

More from this Author44

Problem Tags

Community Treasure Hunt

Players