# Art of Pi

Stefan Hollos and J. Richard Hollos

**Format and pricing:** Paperback (381 pages) $19.95, Kindle/pdf $4.95

**ISBN:** 9781887187312 (paperback), 9781887187213 (ebook)

**Publication date:** Sept 2014, Updated Sept 2015

## Table of Contents

**Preface****Gallery****Appendix A: What is Pi?****Appendix B: Image Generation****Further Reading****Acknowledgements****About the Authors**

People have been interested in circles for a long time. One can imagine early humans attaching a cosmic significance to circles. After all, the two greatest objects in the sky, the sun and the moon, are circles.

We know that by at least 2000 BC, humans had discovered an important universal property of all circles. If you measure a circle's perimeter (circumference) and divide by its width (diameter) you get a number that is the same for all circles.

Today we call this number pi and mathematicians represent it by the
Greek letter *π*. Its value is 3.14159265358979323844.... where the
digits go on forever.

This book is an exploration of beautiful and unique drawings that
can be interpreted from the value of *π*. The book contains
357 of these drawings. It is an art book meant to ignite your
creativity and imagination. No mathematics is required.

There are two appendices that contain a very short explanation of some
of the mathematics behind *π* and how the images are created, indexed by
name. Details can be found in our book
Pattern Generation for Computational Art.

May you find these images stimulating and inspiring, as we have found them.

#### About the authors

Stefan Hollos and J. Richard Hollos are physicists and electrical engineers by training, and enjoy anything related to math, physics, engineering and computing. They are brothers and business partners at Exstrom Laboratories LLC in Longmont, Colorado.

Send comments to: Richard Hollos (richard[AT]exstrom DOT com)

Copyright 2019 by Exstrom Laboratories LLC