### 3.4.4 The Help menu

The Help menu contains commands that let you get information about Xcas from various sources. This menu contains the following entries:

- Index
  This will bring up the help index. (See help index )
- Find word in HTML help (F12)
  This will bring up a page which will help you search for keywords in the html documentation that came with Xcas. The help will be displayed in your browser.
- Interface
  This will bring up a tutorial for the Xcas interface. The tutorial will be displayed in your browser.
- Reference card, fiches
  This will bring up (in your browser) a pdf reference card for Xcas.
- Manuals
  This will let you choose from a variety of manuals for Xcas. They will appear in your browser unless otherwise noted.
  - CAS reference
    This will bring up a manual for Xcas.
  - Algorithmes (HTML)
    This will bring up a manual for the algorithms used by Xcas.
  - Algorithmes (PDF)
    This will bring up a pdf version of the manual for the algorithms used by Xcas.
  - Geometry
    This will bring up a manual for two-dimensional geometry in Xcas.
  - Programmation
    This will bring up a manual for programming in Xcas.
  - Simulation
    This will bring up a manual for statistics and using the Xcas spreadsheet.
  - Turtle
    This will bring up a manual for using the Turtle drawing screen in Xcas.
  - Exercices
    This will bring up a page of exercises that you can do with Xcas.
  - Amusement
    This will bring up a page of mathematical amusements that you can work through with Xcas.
  - PARI-GP
    This will bring up documentation for the GP/PARI functions.
- Internet
  The Internet menu contains commands that take you to various web pages related to Xcas. Among them are the following entries:
  - Forum
    This will take you to the Xcas forum.
  - Update help
    This will install updated help files (retrieved from the Xcas website).
- Start with CAS
  This menu has the following entries.
  - Tutorial
    This opens up the tutorial.
  - solutions
    This opens up the solutions to the exercises in the tutorial.
- Tutoriel algo
  This opens up a tutorial on algorithms and programming with Xcas.
- Rebuild help cache
  This will rebuild the help index.
- About
  This will display a message window with information about Xcas.
- Examples
  This will allow you to choose from a variety of example worksheets, which will then be copied to your current directory and opened.