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Pen-Based Interfaces for Mathematics

Ontario Research Centre for Computer Algebra

Ontario Research Centre for Computer Algebra

Supported by

Microsoft Canada


Maplesoft Canada


Welcome to the pages of the Working Group for Pen-Based Interfaces for Mathematics at ORCCA, the Ontario Research Centre for Computer Algebra.

Our objective is to identify, investigate and solve key problems in developing effective pen-based computer interfaces for doing mathematics. This includes a broad range of questions, ranging from portability of digital ink architectures, to semantically-defined direct manipulation of mathematical expressions.

Pen-based interfaces for mathematics can incorporate various techniques such as menu and palette selection, prompting areas, editing gestures, dictionary-based methods, as well as hand writing recognition.

Some of the projects underway in our group include:

  • Architectures for platform-independence of digital ink applications
  • Expression reorganization
  • Direct expression manipulation
  • Feature identification for character classification in large symbol sets
  • Analysis and exploitation of mathematical expression databases
  • Mathematical handwriting recognition

-- SMW

Related links



The University of Western Ontario The University of Waterloo
Research Partners and Colloboratiors
Infty Project
Infty Project, Kyushu University, Japan

Design Science
Design Sience, USA

XThink, Texas, USA

Positions Available

From time to time we have positions available for post-doctoral fellows, staff programmers, and graduate students at the Masters and PhD levels. If you are interested in such a position, please send E-mail to <watt(at)>.

Last updated October 29, 2007

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