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Stitz Zeager
Stitz-Zeager provides free, open precalculus materials covering college algebra, trigonometry, and precalculus.
About Stitz Zeager
Stitz Zeager provides open mathematics materials by Carl Stitz and Jeff Zeager covering college algebra, trigonometry, and precalculus. It offers the 3rd Corrected Edition as PDF eBooks, including full Precalculus and separate College Algebra and College Trigonometry volumes, plus a Chapter 0 prerequisites review and a preliminary Fourth Edition with source code.
An interactive Precalculus Edition 4i is available on the Ximera platform. Printed copies are handled through OpenIntro.org, with free printed desk copies for verified teachers who register there.
Key features
- Free PDF of Precalculus 3rd Corrected Edition
- Separate College Algebra and College Trigonometry PDFs
- Chapter 0 prerequisites review as PDF
- Preliminary unedited Fourth Edition PDF and source code
- Interactive Precalculus Edition 4i on Ximera
- Printed copies available through OpenIntro.org
Best for: Students and teachers who need no-cost textbooks for college algebra, trigonometry, or precalculus.
Good for
- PDF eBooks described as free, including separate algebra and trigonometry volumes
- Includes prerequisites review and Fourth Edition source code
- Interactive edition available on the Ximera platform
Watch out for
- Fourth Edition materials are labeled preliminary and unedited
- Free printed desk copies are limited to verified teachers on OpenIntro.org
Stitz Zeager at a glance
- Website
- stitz-zeager.com
- Category
- Education & Learning › Mathematics Learning
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
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Stitz Zeager FAQ
How can I get a printed copy?
Printed copies are available through OpenIntro.org. Verified teachers can register an account there to request free printed desk copies.
Where is the interactive version?
Precalculus Edition 4i is available on the Ximera platform.
Which PDF editions are listed?
The site lists Precalculus 3rd Corrected Edition, College Algebra 3rd Corrected Edition covering chapters 1-9, College Trigonometry 3rd Corrected Edition covering chapters 10-11, Chapter 0 prerequisites, and a preliminary Fourth Edition.
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