Cross platform GUI for Maxima
wxMaxima is a cross-platform graphical front-end for the computer algebra system Maxima based on wxWidgets. It provides nice display of mathematical output and easy access to Maxima functions through menus and dialogs.
Oneliner integrates UNIX shell with Emacs text editor. Oneliner provides various syntax for integration. (e.g. You can connect 'shell pipe' and 'Emacs buffer' directly with simple syntax.)