3.2.3 Demo mode

The Emacs interface can be used to run interactive SINGULAR demonstrations. A demonstration is started by loading a so-called SINGULAR demo file with the Emacs command singular-demo-load, bound to C-c C-d, or with the menu Commands->Load Demo.

A SINGULAR demo file should consist of SINGULAR commands separated by blank lines. When running a demo, the input up to the next blank line is echoed to the screen. Hitting <RETURN> executes the echoed commands and shows their output. Hitting <RETURN> again, echos the next commands to the screen, and so on, until all commands of the demo file are executed. While running a demo, you can execute other commands on the SINGULAR prompt: the next input of from the demo file is then echoed again, if you hit <RETURN> on an empty input line.

A SINGULAR demo can prematurely be exited by either starting another demo, or by executing the Emacs command singular-demo-exit (menu: Commands->Exit Demo).

Some aspects of running SINGULAR demos can be customized. See Customization of the Emacs interface, for more info.