MathinSG

Learn Complex Numbers: An Introduction to Complex Numbers is a clear and student-friendly guide created for high school and early college students who are learning complex numbers for the first time. This book breaks down complex numbers and imaginary numbers in a simple, logical way-starting from the basics and gradually building toward more advanced concepts. Students will learn how to work confidently with complex number operations, solving equations involving complex numbers, representing complex numbers on argand diagrams and more.
Designed to support coursework in algebra, precalculus, calculus, and introductory engineering or physics classes, this book emphasizes understanding over memorization. Concepts are explained in straightforward language, with examples that reinforce problem-solving skills and mathematical intuition. What students will learn: The meaning of complex numbers and the imaginary unit i How to add, subtract, multiply, and divide complex numbers Graphing complex numbers on the argand diagram Writing complex numbers in different forms and converting them between different forms (cartesian form, polar form) Finding powers and roots of complex numbers De Movire's Theorem Applying complex numbers to typical high school and college exam problems Each chapter comes with a worksheet to reinforce what has been learned.
Answer key is also provided at the end of the book. This book on complex numbers is ideal for: High school math students College students in algebra, calculus, or engineering courses Exam preparation and revision Self-study and tutoring support If you are a student looking for a clear, accessible introduction to complex numbers, or a teacher searching for a reliable classroom supplement, this book provides a solid foundation for success in mathematics and related fields.