History of MathBrush Project

The MathBrush project started as a standalone application running on Tablet PCs. The main focus of the project was to experiment and enhance the recognition of hand written mathematics, investigate the different user interface challenges, and connect with a Computer Algebra System (CAS) to allow the user to naturally operate on the handwritten mathematical expressions. MathBrush was available on Tablet PCs and was able to connect to Maple and Mathematica as the supporting CAS. The existence of a complete system was essential for tackling all the challenges introduced with such a system. The Tablet PC version works also on Microsoft Surface Pro. If you are interested in this version of the project please contact us.
MathBrush was ready to be used by students to help them focus on doing mathematics and enjoy it instead of worrying about transcribing mathematics in different ways to feed to available CAS or to embed in a latex document or a web page. With the evolution in the use and the availability of tablet devices, we decided to create the MathBrush App available on the App Store for both the iPad and the iPhone to help as many students as possible. We chose Sage as our CAS since it does not need the users to subscribe or purchase any additional components. With the move to tablet devices came new set of challenges to deal with the limited input area, the limited resources on the device and the different interface design standards.

MathBrush Early Release - Tablet PC

MathBrush is a pen-based system for interactive mathematics. The system allows users to write mathematical expressions as they would using a pen and paper, and manipulate the expressions using computer algebra system operations that are invoked by pen-based interaction. Users can also edit the input and output expressions or parts of them. Despite the benefits of computer algebra systems (CAS) such as Maple, many users prefer a pen-and-paper approach. This is mainly because a pen-and-paper approach does not involve translating the mathematics into a specific CAS-based representation. This motivated our project to bridge the gap between the intuitiveness of free-form pen-and-paper and the power of a CAS.


Some of the features offered by the recognizer are:

Recognition alternatives in Tablet PC version of MathBrush

Training the recognizer

Short form matrix recognition.


Some of the computational functionality of MathBrush is as follows:

Other Related Projects

MathBrush on iPad

The wide spread of iOS devices and the continuous improvement in the configuration and capabilities of those devices motivated the creationof the MathBrush app on the Apple App store. The iPad was a better candidate because of the space available for input handwritting. iPhones was not powerful enough for running the MathBrush App.


MathBrush Mar 2015 - iPad

Overview of MathBrush

Quick tips for writing input expressions

Training the MathBrush recognizer

Manipulation of expressions in MathBrush

MathBrush June 2009 - Tablet PC

Using MathBrush

Editing and manipulation of expressions in MathBrush

Plotting in MathBrush

Training the recognizer and settings in MathBrush

MathBrush Jan 2008 - Tablet PC

Using MathBrush

Editing and manipulation of expressions in MathBrush

Plotting in MathBrush

Training the recognizer and settings in MathBrush

MathBrush June 2007 - Tablet PC

MathBrush full demo

MathBrush June 2006 - Tablet PC

MathBrush short demo

MathBrush long demo