### 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 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.

User manual for Singular version 4-0-3, 2016, generated by texi2html.