for high school and college students, teachers, parents and people, that want to refresh their knowledge in math. This is a perfect study site to get help to do your homework, prepare for a test, just refresh memory etc.
What can you find here?
Subject areas from Pre-Algebra to Calculus 2. More than 2000 notes with clear explanations and a lot of step by step examples. You can find topics ranging from adding whole numbers to solving system of trigonometric equations, from limit of the function to optimization problems, from definition of integral to finding volume of solids of revolution.