Problem 2639. How Many Months Until It's Today Again?

Created by Ned Gulley

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>Given a particular date, calculate how many months must pass before that same day of the month occurs on the same day of the week.</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>Start with 22-Oct-2014, which is a Wednesday. How many months must pass before the 22nd of the month occurs on a Wednesday again? Answer: You have to wait for six months. 22-Apr-2015 is also a Wednesday.</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:rPr><w:b/></w:rPr><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[ d_in = '22-Oct-2014'\n wait_in_months = 6]]></w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:rPr><w:b/></w:rPr><w:t>Feature Tip</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>This problem is made simpler by the</w:t></w:r><w:r><w:t> </w:t></w:r><w:hyperlink w:docLocation=\"http://www.mathworks.com/help/matlab/date-and-time-operations.html\"><w:r><w:t>DATETIME objects</w:t></w:r></w:hyperlink><w:r><w:t> found in MATLAB</w:t></w:r><w:r><w:t> </w:t></w:r><w:hyperlink w:docLocation=\"https://www.mathworks.com/help/matlab/release-notes.html?rntext=&amp;startrelease=R2014b&amp;endrelease=R2014b&amp;groupby=release&amp;sortby=descending\"><w:r><w:t>Release 2014b</w:t></w:r></w:hyperlink><w:r><w:t> and later.</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

210 Solutions
59 Solvers

Last Solution submitted on Apr 11, 2021

Last 200 Solutions

Problem Comments

Problem Recent Solvers59

Problem Tags

calendar feature r2014b

Community Treasure Hunt

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

Start Hunting!

Problem 2639. How Many Months Until It's Today Again?

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers59

Suggested Problems

More from this Author50

Problem Tags

Community Treasure Hunt

Problem 2639. How Many Months Until It's Today Again?

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers59

Suggested Problems

More from this Author50

Problem Tags

Community Treasure Hunt

Players