Why do I receive a CODEGEN error when using "C" as a variable name in the Symbolic Math Toolbox 2.1.3 (R13)?

If I am using only the Symbolic Math Toolbox, I am not able to use "C" as a variable name.

The following steps are performed in the Student Version of R13:

syms C x w

w = C*x

 w =

 codegen:-C*x

syms D

subs(w,1,2)

 ans =

 codegen:-C^2*x^2

syms c

w = c*x

 w =

 c*x

Answer 1

[MathWorks Support Team]

This issue has been fixed in the Symbolic Math Toolbox 3.1.5 (R2006b). If you are using a previous version, read the following:

As a workaround, avoid using "C" as a variable name.