Introduction To The Calculus Of Variations by William Elwood Byerly - Free PDF
About this book :-
This textbook explores the foundational concepts of variational calculus. Ideal for advanced mathematics students, this book introduces key principles such as Euler’s equation, first and second variations, and conditions for extrema in functionals. Byerly’s clear explanations make complex topics more approachable, even for those new to the subject.
This book is especially valuable for learners in mathematics, physics, and engineering, where "calculus of variations" plays a critical role in solving optimization problems. Topics like geodesics, constrained variations using "Lagrange multipliers", and real-world applications in mechanics are covered with clarity and precision. Each chapter includes examples and exercises to reinforce understanding and encourage deeper exploration.
Though originally published in the 19th century, Byerly’s approach remains relevant for modern study. It serves as a solid introduction to variational methods and a helpful reference for academic courses or self-study. Whether you're a student, educator, or curious reader, this book offers a strong foundation in one of the most important branches of mathematical analysis.
Book Detail :-
Title:
Introduction To The Calculus Of Variations by William Elwood Byerly - Free PDF
Publisher:
Cambridge Harvard Universtiy Press
Year:
1917
Pages:
470
Type:
PDF
Language:
English
ISBN-10 #:
1164824333
ISBN-13 #:
978-1164824336
License:
Public Domain Work
Amazon:
Amazon
About Author :-
The author
William Elwood Byerly
(1849–1935) was an American mathematician and Harvard professor known for his clear, structured teaching in classical mathematics. He authored influential textbooks, including "Introduction to the Calculus of Variations" and "Fourier’s Series and Spherical Harmonics". Byerly’s work focused on foundational topics like "variational calculus", "Fourier analysis", and "mathematical methods" used in physics and engineering. His books are valued for their precision, logical flow, and accessibility, making them enduring resources for students and educators alike.
Book Contents :-
1. INTRODUCTION
2. DIFFERENTIATION OF ALGEBRAIC FUNCTIONS. GENERAL THEOREMS
3. APPLICATIONS
4. INFINITESIMALS AND DIFFERENTIALS
5. TRIGONOMETRIC FUNCTIONS
6. LOGARITHMS AND EXPONENTIALS
7. APPLICATIONS
8. THE INVERSE TRIGONOMETRIC FUNCTIONS
9. INTEGRATION
10. CURVATURE. EVOLUTES
11. THE CYCLOID
12. DEFINITE INTEGRALS
13. MECHANICS
14. INFINITE SERIES
15. PARTIAL DIFFERENTIATION
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