NEW! Precalculus Edition 4i going live soon (mid-August 2026)!
Thanks to the work of Paul Zachlin (Lakeland CC), Anna Davis (OSU), and Serena Squires (OSU), the newest version of Stitz-Zeager Precalculus is live and free on the interactive Ximera platform.:
Click here to access Precalculus 4i on Ximera - coming soon!
Other interactive textbooks on Ximera:
Linear Algebra: An Interactive Introduction by Davis and Zachlin
Differential Equations: An Interactive Introduction by William Trench and adapted for Ximera by Davis and Zachlin
Our Current Textbook as of July 2013:
- Precalculus, 3rd Corrected Edition free eBook (.pdf)
- College Algebra 3rd Corrected Edition, (Chapters 1-9 of Precalculus) free eBook (.pdf)
- College Trigonometry 3rd Corrected Edition, (Chapters 10-11 of Precalculus) free eBook (.pdf)
- Click to obtain Chapter 0 - Prerequisites - a targeted review (.pdf) (August 2013)
Preliminary (Unedited) Fourth Edition:
For printed copies of our textbooks, click on the link: Stitz Zeager Textbooks via OpenIntro.org
Free printed desk copies are available to Verified Teachers on openintro.org. To apply for verification, you may register an account on openintro.org.
Questions? Contact Carl at carl@stitz-zeager.com
