PDE: Heat Equation - Separation of Variables - YouTube
How can we solve this non-homogenous partial differential equation: [math]\dfrac{\partial^2 u}{\partial x^2} - \dfrac{\partial^2 u}{\partial t^2} = xt[/math]? - Quora
TI-89 Calculator - 02 - Taking Partial Derivatives using the TI-89 Calculator - YouTube
MathPDE: A Package to Solve PDEs by Finite Differences « The Mathematica Journal