Symbolic variables are not numerical, this means that they do not contain a certain numerical value. This is explained exhaustively indoc symand theDocumentation of the Symbolic Toolbox. I suggest to read the docs at first and ask a specific question, if some details do not get clear. ...
From time to time it means that you have a corrupted Symbolic Toolbox and need to reinstall. Also if some symbolic functions work but not others then sometimes the problem has to do with having the Maplesoft "MATLAB Connector" installed to communicate with the Maple software package. ...
Function 'syms' not supported for code... Learn more about symbolic, function, simulink MATLAB
let me make a very simple example of my problem. If I want to calucate Y =F(x=1)+ 2.^2, and I knowF(x=1)= a+b,(a and b are syms). This means Y = a + b + 4. Problem is here, Matlab give me error if I write down as. ...
Now you use that symbolic variable in the computations on the right-hand side. This means that right hand side is symbolic. MATLAB will need to try to convert that into double (because you're performing indexed assignment into y on the left hand side) but it can't. ThemeCopy ...