### 3.4.3 The Cfg menu

The Cfg menu contains commands that are used to set the behaviour of Xcas. This menu contains the following entries:

- Cas configuration
  This will open a window that you can use to configure how Xcas performs calculations. This is the same window you get when you click on the status line.
- Graph configuration
  This will open a window that you can use to configure the default settings for a graph. This includes such things as the initial ranges of the variables. Each graph will also have a cfg button to configure the settings on a per graph basis.
- General configuration
  This will open a window that you can use to configure various non-computational aspects of Xcas, such as the fonts, the default paper size, and the like.
- Mode (syntax)
  This will allow you to change the default syntax. To begin with, it is Xcas syntax, but you can change it to Maple syntax, MuPAD syntax or TI89 syntax.
- Show
  This will allow you to control parts of Xcas to show.
  - DispG
    This will show the graphics display screen. This screen will show all graphical commands from the session together.
  - keyboard
    This will show the on-screen keyboard; the same as clicking on the Kbd button on the status line.
  - bandeau
    This will show the menu buttons at the bottom of the window; the same as clicking on cmds on the on-screen keyboard.
  - msg
    This will show the messages window; the same as clicking on msg on the on-screen keyboard.
- Hide
  This will hide the same items that you can show with Show.
- Index language
  This will let you choose a language in which to display the help index.
- Colors
  This will let you choose colors for various parts of the display.
- Session font
  This will let you choose a font for the sessions.
- All fonts
  This will let you choose a font for the session, the main menu and the keyboard.
- browser
  This will let you choose a browser that Xcas will use when needed. If this is blank, then Xcas will use its own internal browser.
- Save configuration
  This will save the configurations that you chose with the Cfg menu or by clicking on the status line.