Saxon Calculus (2nd Ed.)
Saxon Calculus covers calculus, trigonometry, and analytic geometry, with emphasis on application to physics, chemistry, engineering, and business.
Revised in 2006, this version features expanded content, and Lesson Reference Numbers for all problem sets and tests (so the student can go back to the applicable lesson and review the concepts when they run into a difficult problem). 2nd edition.
After completing Advanced Math, students earn a Trigonometry with Precalculus credit. However, if students are college bound, taking Calculus (at least through lesson 25 because it covers derivatives) is beneficial. If students have completed Saxon, Algebra I, Algebra II, and first half of Advanced Math, they can also earn a geometry credit.