xppaut - 6.11b+1.dfsg-1.1 main

XPPAUT is a tool for solving
* differential equations,
* difference equations,
* delay equations,
* functional equations,
* boundary value problems, and
* stochastic equations.
.
The code brings together a number of useful algorithms and is
extremely portable. All the graphics and interface are written
completely in Xlib which explains the somewhat idiosyncratic and
primitive widgets interface.