Contents

• 1  A first session
• 2  Web interface
  • 2.1  Running offline
  • 2.2  Smartphone
  • 2.3  Sharing sessions
  • 2.4  Import, export
  • 2.5  Good to know
• 3  Online help
• 4  Level types
  • 4.1  Command line
  • 4.2  Comments
  • 4.3  Expression editor
  • 4.4  Programs
  • 4.5  Geometry and graphics
    • 4.5.1  Common features
    • 4.5.2  2-d geometry
    • 4.5.3  Parameters
    • 4.5.4  3-d rendering.
    • 4.5.5  3-d spots
    • 4.5.6  3-d geometry
  • 4.6  Spreadsheet
  • 4.7  Logo-like turtle
• 5  Session management
• 6  Configuration
• 7  Customization