undefined function in GUI

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Lim Xiao Hui
Lim Xiao Hui el 15 de Jun. de 2021
Comentada: Rik el 16 de Jun. de 2021
Hello, can i ask why when i write code for GUI, it show
Undefined function 'multiply' for input arguments of type 'double'.?
Thank you.
  4 comentarios
Geoff Hayes
Geoff Hayes el 15 de Jun. de 2021
Lim - is multiply a function that you have written because I can't find it in the MATLAB documentation? If it is a custom function (either yours or perhaps from the File Exchange) then the error message is possibly telling you that the function cannot be found along the MATLAB search path. Or you are trying to call a function that doesn't exist anywhere.
Lim Xiao Hui
Lim Xiao Hui el 15 de Jun. de 2021
okok thank you!

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Kishan Dhakan
Kishan Dhakan el 16 de Jun. de 2021
If you're using MATLAB app designer, it will be easier if you click the 'add a function' button and define your multiply there itself (I see no reason to do it in a separate script). Note: If you add it as a private method, use app.multiply() everywhere.
  3 comentarios
Kishan Dhakan
Kishan Dhakan el 16 de Jun. de 2021
Editada: Kishan Dhakan el 16 de Jun. de 2021
Rik, accepted. I meant I see no reason for this 'multiply' specifically. As '*' would do the multiplication in general anywhere, I assumed this function is specific to the app.
Rik
Rik el 16 de Jun. de 2021
Given that you only know the name, it would be a bit odd to assume the functionality is the exact same as *.
Maybe this is what that function does:
function af=multiply(x,y)
af=@(c) x*y + c;
end

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