ML :

Which equation are you talking about. You are probably right as the formulas won't copy and I can't put (type) exponents here copied or typed. In the last equation it is L cubed. Also after all the logs there is a lower case small symbol that I can't put here - looks like a small 10. In the first one the b is an exponent (raised). If these don't sound right let me know and I will try to clear them up.