qrupdate is a Fortran library for fast updates of QR and Cholesky decompositions.
UPS is a source level C, C++ and Fortran debugger with an X windows interface. It's a very light debugger, but is quite efficient and works well. An ANSI compliant C interpreter is included.
(We have migrated this project to github [June 1 2015)] http://github.com/msg-byu/enumlib). The source files have been removed from sourceforge. Go to github (link above) for the latest copy. <<<< OLD SUMMARY >>>> A Fortran 95 implementation of an algorithm for generating derivative structures of a parent lattice. The algorithm is discussed in detail in: Gus L. W. Hart and Rodney W. Forcade, "Algorithm for generating derivative structures," Phys. Rev. B 77 224115 (26 June 2008) http://msg.byu.edu/papers/GLWHart_enumeration.pdf Gus L. W. Hart and Rodney W. Forcade, "Generating derivative structures from multilattices: Application to hcp alloys," Phys. Rev. B 80 014120 (July 2009) http://msg.byu.edu/papers/multi.pdf Gus L. W. Hart, Lance J. Nelson, and Rodney W. Forcade, "Generating derivative structures at a fixed concentration," Comp. Mat. Sci. 59 101-107 (March 2012) http://msg.byu.edu/papers/enum3.pdf
PsiLAB is an environment for scientific research, numerical calculations and generic data analysis. It's written in the functional language O'CaML.
Now on beta status. Maintence of a dedicated amateur server using open source software and implementeing all of them. The projects have a bug tracker, wiki, community portal, forums, mail list and a lot of more.
A calculator capable of complex arithmetics
A command line calculator capable of complex arithmetics.
The project OSMLE (Open Scientific Mathematical Learning Environment) has great promise to benefit various scientific fields of study by producing results from known formula's at the speed and accuracy of a PC.