Problem 45497. Four digit number ABCD reversal

Created by Prasad Reddy

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 MATLAB function to find the four-digit number ABCD when multiplied by 4 returns DCBA. The function takes an input x=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

66 Solutions
41 Solvers

Last Solution submitted on Oct 24, 2022

Last 200 Solutions

Problem Comments

1 Comment

1 Comment

Michael on 7 May 2020

You really shouldn't give away the answer in the test suite. ;-)

You could change the test suite to something like:

assert (str2num(fliplr(num2str(y))) == y*4);

Although this also sort of gives away one possible solution.

Problem Recent Solvers41

Problem Tags

Community Treasure Hunt

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

Start Hunting!

Problem 45497. Four digit number ABCD reversal

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers41

Suggested Problems

More from this Author2

Problem Tags

Community Treasure Hunt

Problem 45497. Four digit number ABCD reversal

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers41

Suggested Problems

More from this Author2

Problem Tags

Community Treasure Hunt

Players