A library for scientific data visualization
A free cross-platform library of fast C++ routines for the plotting of up to 3-ranged data. It can export to bitmap and vector EPS/SVG files. There are window interfaces (GLUT/FLTK/Qt) and console tools. MathGL can be used from C/Fortran/Python/Octav/Lua
surfit is an open source and free gridding and contouring software. surfit can do interpolation/approximation of points, contours and surfaces, can take fault lines and trend surfaces into account, can use inequalities and other conditions. Supports a lo
Interactive geometry software for Euclidean and non-Euclidean spaces
GeomSpace is interactive geometry software for different geometric spaces. You can build your own universe of any dimension and with any geometry. You can choose Euclidean, elliptic, hyperbolic, Galilean, Minkowskii, de Sitter among other spaces.
Arcball (tracball) OpenGL widgets for different toolkits now supported fltk (1 and 2) and gtkmm (gtkglextmm).
MyServer development has moved to GNU savannah since it became an official GNU Project: https://savannah.gnu.org/projects/myserver
Common Hardware Recovery Solutions by Ukrainian-Russian network from http://hardw.net/forum
flManowar is simple jabber client with boards games support (battleship,checkers and reversi included)