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Matlab function

Posted Jul 2, 2018, 1:38 a.m. EDT General, LiveLink for MATLAB 1 Reply

Kiran Kabothu
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I want to use matlab function in COMSOL. I try to plot the my matlab funtion in comsol, i got an error meesage Incorrect size of returned vector. 247 elements were expected, but the returned matrix was 1 x 1

please me to resolve tthis issue.

with regards, Kiran

1 Reply Last Post Jul 3, 2018, 7:28 a.m. EDT
Lars Gregersen COMSOL Employee

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Posted: 6 years ago Jul 3, 2018, 7:28 a.m. EDT

When using Matlab function from Comsol we send a number of values to Matlab in batches since communication with Matlab is slow.

This means that all inputs to your functions are vectors of the same size. You must make sure that your function returns a vector of exactly the same as the inputs.

This is covered in great detail in the LiveLink for Matlab User's Guide and the Vacuum Flask model that comes with the Model Library.

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Lars Gregersen
Comsol Denmark
When using Matlab function from Comsol we send a number of values to Matlab in batches since communication with Matlab is slow. This means that all inputs to your functions are vectors of the same size. You must make sure that your function returns a vector of exactly the same as the inputs. This is covered in great detail in the LiveLink for Matlab User's Guide and the Vacuum Flask model that comes with the Model Library.

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.

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