Welcome to EucliDrawİ

A program to draw dynamic geometric shapes
These pages are about Plane Euclidean Geometry, teaching, solving problems and doing research, using EucliDrawİ, a program to draw geometric shapes, and watch their changes as various parameters are modified by the user.

The program started under the name Isoptikonİ at the University of Crete. This first version was published in 1999, in the free public domain and circulated widely in the Internet. EucliDrawİ, abbreviated EUC, is a sequel to Isoptikonİ. It differs though from it in many aspects. The functionality has been considerably extended and now, among others, covers: elementary shapes such as lines, circles, triangles, etc. , conics, dynamic change capabilities, dynamic geometric loci and envelopes, transformations, programming/scripting and extendability through user-defined-tools.

MAIN TOPICS
• Site's Global View
  View all of the site's sections.
• Euclidean Geometry and EucliDrawİ
  The logical structure of Euclidean Geometry and where our program fits.
• What is a figure of Euclidean Geometry
  Scheme: The simple philosophy on which EUC is based.
• Simple Objects constructible with EUC
  Points, segments, circles etc. from which the schemes are build.
• Scheme-components
  How Schemes are gradualy build up.
• Alphabetic index of tools
  General catalog dispatching to the tools available.
• Quick Start (late end)
  "Short" introduction. Building Simson Lines of a triangle.
• Programming/Scripting
  Extending the tools and capabilities of the application.
• Vocabulary of Geometry
  Concise but with comments.