Problem 2368. I want eval

Created by rifat

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>A valid MATLAB statement containing a definition of a vector is passed as a string S. Determine the length of the vector.</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/><w:jc w:val=\"left\"/></w:pPr><w:r><w:t>Input: S='vec=1:10;'; Output=10</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/><w:jc w:val=\"left\"/></w:pPr><w:r><w:t>Explanation: if you execute eval(S), a vector vec of length 10 will be generated. Similarly,</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/><w:jc w:val=\"left\"/></w:pPr><w:r><w:t>Input: S='a=[1 2 3 4 5];' Output=5</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/><w:jc w:val=\"left\"/></w:pPr><w:r><w:t>Input: S='a=ones(1,10);'; Output=10</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/><w:jc w:val=\"left\"/></w:pPr><w:r><w:t>Input: S='a=[];'; Output=0;</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

69 Solutions
18 Solvers

Last Solution submitted on Nov 16, 2020

Last 200 Solutions

Problem Comments

2 Comments

2 Comments

J.R.! Menzinger on 17 Jun 2014

The length of an empty array is 0 not []. ;-)

rifat on 17 Jun 2014

Sorry for that.. fixed it.. :)

Problem Recent Solvers18

Problem Tags

regexp string

Community Treasure Hunt

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

Start Hunting!

Problem 2368. I want eval

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers18

Suggested Problems

More from this Author44

Problem Tags

Community Treasure Hunt

Problem 2368. I want eval

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers18

Suggested Problems

More from this Author44

Problem Tags

Community Treasure Hunt

Players