Welcome
What's New
Discover new features and enhancements.
Get Started
Discover Compose, including its language support and system requirements.
Tutorials
The Compose tutorials and associated example model files help introduce you to the basic functionality of the software.
User Guide
Learn about the features and functionality available in Compose.
Reference Guides
Reference guides are available for functions and commands supported by OML, Tcl, and Python.
- Scripting Guide for OpenMatrix Language
  OpenMatrix is a mathematical scripting language.
- Reference Guide for OpenMatrix Language Functions
  The Reference Guide contains documentation for all functions supported in the OpenMatrix language.
  - ABF Commands
  - Altair Integration Commands
  - Audio Commands
  - CAE Commands
  - CAE Reader Commands
  - CAE Reader 3D Commands
  - CAE Writer Commands
  - Calculus Commands
  - Computer Vision Commands
  - Communication Commands
  - Control System Commands
  - Core Minimal Interpreter Commands
  - Data Structure Commands
  - Differential Equations Commands
  - Elementary Math Commands
  - File I/O Commands
  - Geometry Commands
  - GUI Commands
    - edit
      Opens the file, filename, in the Compose text editor. edit is only available in the Compose GUI.
    - errordlg
      Shows a dialog box with the error s.
    - inputdlg
      Shows a dialog box with label(s), s for text field(s) that require user input.
    - listdlg
      Shows a dialog box with a list of strings which the user can pick. This command is only available in the GUI.
    - msgbox
      Shows a dialog box with the message s.
    - questdlg
      Shows a dialog box with a question s. By default, the dialog displayed will have the 'Yes', 'No' and 'Cancel' buttons.
    - uigetdir
      Displays a directory selection dialog.
    - uigetfile
      Displays a dialog for selecting existing file(s). Multiple files can be selected using the Ctrl key.
    - uiputfile
      Displays a file selection dialog.
    - warndlg
      Shows a dialog box with the warning s.
    - IDE Customization Commands
      - addmenuitem
        Adds an action item to the given menu in the Compose user interface. addmenuitem is only available in the Compose GUI.
      - addmenuseparator
        Inserts a separator in the given menu in the Compose user interface. addmenuseparator is only available in the Compose GUI.
      - addpopupmenu
        Adds a pop-up menu, in hierarchical order, under a ribbon menu or as a child menu to a pop-up menu in the Compose user interface. addpopupmenu is only available in the Compose GUI.
      - addribbonmenu
        Adds a ribbon menu, rbmname, in the Compose user interface. addribbonmenu is only available in the Compose GUI.
      - addribbonpage
        Adds a ribbon page, rbnname, in the Compose user interface. addribbonpage is only available in the Compose GUI.
      - addribbonpagegroup
        Adds a ribbon page group, rpgnname, in the Compose user interface. addribbonpagegroup is only available in the Compose GUI.
      - addspriteaction
        Adds a sprite action to the given sprite group in the Compose user interface. addspriteaction is only available in the Compose GUI.
      - addspriteactiongroup
        Adds a sprite action group, sagname, to a ribbon page group in the Compose user interface. addspriteactiongroup is only available in the Compose GUI.
      - enablespriteaction
        Enable or disable a sprite action, name, in the Compose user interface. enablespriteaction is only available in the Compose GUI.
      - movesprite
        Moves the sprite action or group, name, in the Compose user interface. movesprite is only available in the Compose GUI.
      - removemenuitem
        Removes an action item from the given menu in the Compose user interface. removemenuitem is only available in the Compose GUI.
      - removepopupmenu
        Removes a pop-up menu from the Compose user interface. removepopupmenu is only available in the Compose GUI.
      - removeribbonmenu
        Removes a ribbon menu rbmname or pm, from the Compose user interface. removeribbonmenu is only available in the Compose GUI.
      - removeribbonpage
        Removes a ribbon page, rbnname, from the Compose user interface. removeribbonpage is only available in the Compose GUI.
      - removespriteaction
        Removes a sprite action from the Compose user interface. removespriteaction is only available in the Compose GUI.
      - removespriteactiongroup
        Removes a sprite action group, sagnname, from the ribbon page group in the Compose user interface. removespriteactiongroup is only available in the Compose GUI.
      - setmenuaccel
        Sets an accelerator for the given action in the Compose user interface. setmenuaccel is only available in the Compose GUI.
      - showspriteaction
        Show or hide a sprite action, name, in the Compose user interface. showspriteaction is only available in the Compose GUI.
  - HDF5 Reader Commands
  - HDF5 Writer Commands
  - hstpyfit Commands
  - Image Commands
  - JSON Commands
  - Library Manager Commands
  - Linear Algebra Commands
  - Logical Commands
  - Machine Learning Commands
  - Optimization Commands
  - Plotting Commands
  - PSIM Commands
  - Polynomial Math Commands
  - Signal Processing Commands
  - Special Functions Commands
  - Statistical Analysis Commands
  - String Operations Commands
  - System Commands
  - Table Commands
  - Tcl Bridge OML Commands
  - Tcl Bridge Tcl Commands
  - Time Commands
  - Trigonometry Commands
  - OML to Python Bridge Commands
  - Python to OML Bridge Commands
- Python in Compose Reference Guide
Appendix
Get help for the optional libraries that are available in the Extension Manager.
Frequently Asked Questions
You've got questions? We've got answers!

IDE Customization Commands