Ron Avitzur, , 510-848-5135

Objective: To build useful tools for education.

Education: Stanford University, B.S. Physics, 1990


1987 - 1990


An early Macintosh symbolic math program designed for physics students.

1987 - present


A system independent C library for typing, editing, typesetting, and computing math expressions used in about seven commercial products.

1988 - 1995


The math system embedded in Adobe FrameMaker. I'm proud to be responsible for the only page layout product which can symbolically evaluate derivatives.


Graphing Calculator

An educational math product bundled on every Macintosh.

1995 - 1997


The 680x0 version of Graphing Calculator published by Key Curriculum Press for high school.


Claris Home Page


1998 - present

Graphing Calculator

Commercial releases on Mac OS and Windows of the math software developed for Apple.


9/96 - present

Founder, Pacific Tech. Developing educational math software.

2/96 - 6/96

Founder and V.P., Marketing San Andreas Systems. Responsibilities included: marketing, business development, product management, competitive analysis, market research, public relations, hiring and managing temporary contractors, office manager, network administration, accounting, and generally dealing with stuff. We created and sold Claris Home Page to Claris in 101 days.

9/88 - 4/95

Contract programming at Frame Technology on core software. I integrated MathEdit into FrameMaker 2.0, maintaining and enhancing it for new versions.

6/94 - 9/94

Participated in semester on human interaction at RIACA (Research Institute in Applications of Computer Algebra).

8/93 - 1/94

Led an independent team to design and implement the Graphing Calculator which Apple bundled with every Macintosh. The story behind its clandestine development work may amuse.

8/92 - 8/93

Handwriting recognition research and development at Apple to support a pen-based Macintosh.

9/84 - 6/90

Undergraduate Physics at Stanford.

9/87 - 2/88

Neural network research in the Stanford Psychology Department.

6/85 - 9/85

Video game development at SandCastle Software.

9/84 - 2/85

Worked with the Fractional Charge research group in the Stanford Physics Department.


Suggestions for a Friendlier User Interface. Proceedings of DISCO '90 (Design and Implementation of Symbolic Computation Systems)

Roll Your Own Recognizer. Doctor Dobb's Journal, April 1992.

Designing Applications for the Power Macintosh. With Greg Robbins. Develop Issue 19, September 1994.

Direct Manipulation in A Mathematics User Interface. Proceedings of HISC Workshop '94 (Human Interactions in Symbolic Computation Systems)

From Honest to Intelligent Plotting. With Olaf Bachmann and Norbert Kajler. Proceeding of the International Symposium on Symbolic and Algebraic Computation, July 1995. (A postscript version can be found here.)

The Graphing Calculator Story

It's midnight. I've been working sixteen hours a day, seven days a week. I'm not being paid. In fact, my project was canceled six months ago, so I'm evading security, sneaking into Apple Computer's main offices in the heart of Silicon Valley, doing clandestine volunteer work for an eight-billion-dollar corporation.