"Shishir Jaiswal" <firstname.lastname@example.org> wrote in message news:email@example.com... > I need to define a positive symbolic expression say 'n'. > I am using 'sym' or 'syms' (for multiple symbols). In one machine (PC) it > is working fine but in another following error is coming: > > ?? Undefined function or method 'sym' for input arguments of type 'char'. > > what may be the reason? i am using same version in both the systems. > Is there any other way of defining math symbols?
Both SYM and SYMS are functions from Symbolic Math Toolbox.