Problem 150. chirp again

Created by AMITAVA BISWAS

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>rise frequency linearly from 0 to frequency f in 1 second and fs samples, initial amplitude must rise smoothly like an aircraft taking off from ground, your code should not duplicate the test code. should be accurate at least six digits.</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

174 Solutions
31 Solvers

Last Solution submitted on Apr 19, 2022

Last 200 Solutions

Problem Comments

3 Comments

3 Comments

Rafael S.T. Vieira on 16 Oct 2020

The test suite needs to be updated since the function chirp is no longer available. Moreover, most solutions use chirp, which was not recommended at the problem description and would render them false. On the other hand, the problem description also needs to be updated, it is not clear what the function "rise smoothly like an aircraft taking off from ground" is . Anyway, the few solutions that don't use chirp use sin, which is probably the right way to go. However, looking at the documentation of chirp, one may find several different functions to achieve a possible result and none of them is sin.

Rafael S.T. Vieira on 16 Oct 2020

For the moment, this has become a hacking problem, until the author fixes it.

Sulaymon Eshkabilov on 10 Jul 2021

There is an error in the test suite of the exercise that has to be fixed. As it is now, it does not work with any solution.

Solution Comments

Solution 1659472

1 Comment

1 Comment

William on 25 Oct 2018

The function chirp(), which is used in the test suite, is in the Signal Processing Toolbox, and is not available to Cody.

Solution 1549103

1 Comment

1 Comment

bainhome on 5 Jun 2018

does the signal toolbox not available in cody? i think this one failed is not my problem because in my code, the chirp function is not involved.

Problem Recent Solvers31

Problem Tags

chirp

Community Treasure Hunt

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

Start Hunting!

Problem 150. chirp again

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers31

Suggested Problems

More from this Author100

Problem Tags

Community Treasure Hunt

Problem 150. chirp again

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers31

Suggested Problems

More from this Author100

Problem Tags

Community Treasure Hunt

Players