diff --git a/books/free-programming-books-subjects.md b/books/free-programming-books-subjects.md index 6fa4e4f3a2b70c59015d5f2307ff1ba68fb602cb..7a3bff1aec88f45959aa343f1da5fe9fa67fc315 100644 --- a/books/free-programming-books-subjects.md +++ b/books/free-programming-books-subjects.md @@ -366,6 +366,7 @@ Books that cover a specific programming language can be found in the [BY PROGRA * [CLP-3 Multivariable Calculus](https://www.math.ubc.ca/~CLP/CLP3/) - Joel Feldman, Andrew Rechnitzer, and Elyse Yeager * [CLP-4 Vector Calculus](https://www.math.ubc.ca/~CLP/CLP4/) - Joel Feldman, Andrew Rechnitzer, and Elyse Yeager * [Collaborative Statistics](http://cnx.org/contents/5e0744f9-9e79-4348-9237-ed012213a2d6%4040.9) +* [College Trigonometry](https://open.umn.edu/opentextbooks/textbooks/college-trigonometry) - Carl Stitz, Jeff Zeager (PDF) * [Combinatorics Through Guided Discovery](https://bogart.openmathbooks.org) - Kenneth Bogart * [Complex Analysis](https://people.math.gatech.edu/~cain/winter99/complex.html) - George Cain * [Computational and Inferential Thinking. The Foundations of Data Science](https://www.inferentialthinking.com)