How to output a sym to a msgbox

I have a polynomial and adding it in app designer. How to have a final output of msgbox(answer). I always get an error that it needs to be cell or char

Answer 1

[Walter Roberson]

char() of a sym will produce a representation of the symbolic expression. Be aware that the representation is intended to be human readable but will not always be executable code and in some cases can misrepresent the expression. If you need executable code then use matlabFunction