Precalculus is a collection of courses that focuses on topics such as algebra and trigonometry, needed as a prerequisite to calculus. Understand precalculus using solved examples.

The Precalculus course covers complex numbers; composite functions; trigonometric functions; vectors; matrices; conic sections; and probability and combinatorics. It also has two optional …

In mathematics education, precalculus is a course, or a set of courses, that includes algebra and trigonometry at a level that is designed to prepare students for the study of calculus, thus the …

The following pages contain various algebra and pre-calculus topics that are used in the study of calculus. These pages were designed so that students can refresh their knowledge of topics to …

This site contains high school Precalculus lessons on video from four experienced high school math teachers. There are also packets, practice problems, and answers provided on the site.

Jan 6, 2026 · Master math and precalculus algebra concepts with engaging, self-paced video lessons.

Master precalculus with clear explanations, step-by-step solutions, and free guided notes at Understand the Math. This page covers functions, polynomial and rational expressions, …

Learn Precalculus skills for free! Choose from hundreds of topics including functions, complex numbers, vectors, matrices, and more. Start learning now!

AP Precalculus assumes you’re comfortable with Algebra 2 skills and pushes them further. You’ll dive deeper into functions—polynomial, rational, exponential, logarithmic, and especially …

Precalculus courses mix together algebra and trigonometry that is designed to prepare students for the study of calculus.