圖書名稱：Essential Concepts of Geometry (Second Edition) (電子書)
內容簡介
This book is a self-contained introduction to the fundamental and interesting topics of geometry. The topics covered include the definitions and properties of 2D and 3D shapes, the basic concepts and formulas of perimeter, area and volume, the Pick’s formula, the Cavalieri’s principles, the basic geometric transformations, the concepts of tessellations, the Euler’s polyhedral formula, and the methods of construction of regular polygons and regular polyhedra.
Complemented by diagrams, pictures, examples and exercises, the materials covered are suitable for an introductory course on geometry and will appeal to school students, teachers, junior undergraduate students, mathematics instructors or lecturers alike.
作者介紹
Dr. Man Yiu Kwong obtained a BSc (Hons) degree in Mathematics from the Hong Kong Polytechnic University, and also an MSc degree (with Distinction) and a PhD degree in Mathematics from Queen Mary, the University of London. He also obtained a PGDE (with Distinction) from the Chinese University of Hong Kong. His research interests include Computer Algebra, Differential Equations, Geometry, History of Mathematics, Problem-solving and Mathematics Education. He is currently an Associate Professor of the Department of Mathematics and Information Technology, the Education University of Hong Kong.
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電子是一種帶有負電的次原子粒子，通常標記為 e − {\displaystyle e^{-}\,\!} 。電子是第一代輕子，以重力、電磁力和弱核力與其它粒子交互作用。輕子是構成物質的基本粒子之一，無法被分解為更小的粒子。電子帶有1/2自旋，是一種費米子，根據包立不相容原理，任何兩個電子都不能處於同樣的量子態。電子的反粒子是正子，其質量、自旋、帶電量大小都與電子相同，但是電量正負性與電子相反。電子與正子會因碰撞而互相湮滅，並在這過程中，生成一對以上的光子。 
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