Here I am giving the command and error shown by MATLAB.
phi=chebfun2(@(phi,p) phi, V2);
??? Undefined function or method 'chebfun2' for input arguments of type 'function_handle'.
L. C. Carvalheiro
It probably means that you don't have the chebfun2 function in your path, or even in you system.
If you're using Chebfun from the File exchange (http://www.mathworks.com/matlabcentral/fileexchange/47023-chebfun), you just have to download the files, unzip to a directory and then add that directory to your matlab path.
Hope this helps.
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Vikas Vippalapalli
i don't think you have written correct syntax. if you tell what function you are trying to do it may help in answering.
these links may help you
http://www.chebfun.org/docs/guide/
http://www.chebfun.org/examples/
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