# Elementary Trigonometry

- By: Michael Corral
- Publisher: Schoolcraft College
- Source: [LibreTexts](https://math.libretexts.org/Bookshelves/Precalculus/Elementary_Trigonometry_(Corral))
- Licence: [GNU Free Documentation License](https://www.gnu.org/licenses/fdl-1.3.html)
- Read at LibreTexts: https://math.libretexts.org/Bookshelves/Precalculus/Elementary_Trigonometry_(Corral)
- PDF: https://downloads.libretexts.org/api/v1/download/math-3215/pdf

This is a text on elementary trigonometry, designed for students who have completed courses in high-school algebra and geometry. Though designed for college students, it could also be used in high schools. The traditional topics are covered, but a more geometrical approach is taken than usual. Also, some numerical methods (e.g. the secant method for solving trigonometric equations) are discussed. A brief tutorial on using Gnuplot to graph trigonometric functions is included.