Before revision: URL The term "Rho-Theta" consists of the two Greek letters corresponding to Rho and Theta: URL URL Rho (Greek ρ) as a synonym for distance measurement, e.g.
After revision: The term "Rho-Theta" consists of the two Greek letters corresponding to Rho and Theta: URL Rho (Greek ρ) as a synonym for distance measurement, e.g.