Error inmatlab R2010a

Hi, I have this error in my new matlab version while I did not have in previous version. would you please help me?

??? Error using ==> sym.sym>notimplemented at 2514 Function 'lt' is not implemented for MuPAD symbolic objects.

Error in ==> sym.sym>sym.lt at 803 notimplemented('lt');

Error in ==> TestLBP at 47 if sum((abs(diff(dec2bin((n-1),P))))) < 3

Thanks in advance Soodeh

[Jan]

Is n or P a symbolic variable?

Answer 1

[Kashif]

You need to convert the symbol (say X_sym) to double by

X_double=double(X_sym)