SEARCH Articles Figures Tables Differential equation separable Differential equations method Differential equations partial Differential method Differentiation variable Domain finite Equation separation Equation variables Method variability Methods of Separation PDE Partial differential Partial differential equation (PDE) method Partial equation Separate variables Separated variables Separation differential Separation equation for Separation methods Separation methods for Separation of variables Separation variables Separative methods Variable domains Variable separable differential equation Variables in Separation