It is freely available under the GNU General Public License . It embodies a rich set of functions and operators, a modern graphical user interface with many widgets and automatic synchronization of widgets and variables, asynchronous execution of functions associated with variables and events, dynamic loading of user compiled subroutines, and many other features.
Execution is by a rather efficient interpreter.
Web and FTP hosting provided by Morgan Stanley and Sourceforge . There are minor source code changes for Alpha Linux. The Alpha Linux distributions are on the Download page. See Input Mode for details. The binary distribution for FreeBSD is on the Download page.