At the end of the last post, we left off with a derivation of the heat equation:  \frac{\partial}{\partial t}\psi(x,t) = \alpha^2\ »

In this series of posts we are going to discuss techniques both mathematical and computational for solving or approximating functions that satisfy a differential equation. Some »

Set Theory To begin discussing mathematics in rigor, we need to build up some basic structure. The most fundamental object that we talk about in mathematics »