Graphical Calculus is a mathematical textbook written by Arthur Henry Barker and published in 1905. The book is focused on the visual representation of mathematical concepts and equations, using diagrams and graphs to help readers understand complex mathematical ideas. The text covers a wide range of topics, including differentiation, integration, vectors, and calculus of variations. The book is intended for students and professionals in the fields of mathematics, physics, and engineering, and provides a unique and innovative approach to learning mathematical concepts. The author, Arthur Henry Barker, was a renowned mathematician and professor at the University of Manchester in England. His expertise in the field of mathematics is evident in the clear and concise explanations provided in this book. Overall, Graphical Calculus is a valuable resource for anyone seeking to improve their understanding of mathematical concepts and their applications.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.