Ursala (UniveRSal Applicative LAnguage) is a functional programming language suitable for scientific and numerical computation. It began in 1996 as a personal tool kit to assist its author at certain practical problems in CAD applications and mathematical finance, but it is now mature enough and adequately documented for general distribution.
The current release (March 2010) includes some new features for handling trees, and corrections to the documentation.
I would be grateful for feedback from anyone who finds this software interesting or useful, at the address ursala-support@basis.uklinux.net. This project is entirely a volunteer effort. There are many possibilities for collaboration or further contributions.