## 3.1 Interactive use

In this section, aspects of interactive use are discussed. This includes how to enter and exit SINGULAR, how to interpret its prompt, how to get online help, and so on.

There are a few important notes which one should not forget:

- every command has to be terminated by a `;` (semicolon) followed by a `RETURN`
- the online help is accessible by means of the `help` function

> 3.1.1 How to enter and exit |  |
> 3.1.2 The SINGULAR prompt |  |
> 3.1.3 The online help system |  |
> 3.1.4 Interrupting SINGULAR |  |
> 3.1.5 Editing input |  |
> 3.1.6 Command line options |  |
> 3.1.7 Startup sequence |  |

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