Precalculus

What is a circle in math?A point and a line segment can define a circle.And we define circles using the way circles are made, and come up with an equation. So indicating a circle, we put it in an equation, called an equation of a circle.This book is talking about circles, and in math, we put them in equations, so this covers equations for circles, contains lots of examples in such, and thus, helps get used to algebra and graphs on such equations.This is in fact, a book of examples, so ideas or rules as formulas, identities, etc., or laws or principles are explained through examples.Each example is fully worked out and detailed, together with a summary at each end.So this book helps develop and grow manipulation and calculation technics on equations for circles and their curves, that is, circles, and thus, will help strengthen problem-solving skill.