History

This section contains the revision history of the book. For persons making modifications to the book, please record the pertinent information here, following the format in the first item below.

1. VERSION: 1.0

   Date: 2009-07-01

   Author(s): Michael Corral

   Title: Trigonometry

   Modification(s): Initial version

2. VERSION: 1.1

   Date: 2010-03-12

   Author(s): Michael Corral

   Title: Trigonometry

   Modification(s): Made the following changes:

   1. Added a section on polar coordinates

   2. Changed the format of the page headers

   3. Changed the format of the examples

3. VERSION: 1.2

   Date: 2012-06-14

   Author(s): Michael Corral

   Title: Trigonometry

   Modification(s): Re-licensed under the terms of the GNU Free Documentation License version 1.3.