Wavelets is a book written by D. S. Pennell that was first published in 1894. The book focuses on the mathematical concept of wavelets, which are small waves that can be used to analyze and process signals and data. The book covers the theory and applications of wavelets, including their use in signal processing, image compression, and data analysis. The author provides a detailed explanation of the mathematical principles behind wavelets, including their properties, mathematical transformations, and applications. The book is aimed at mathematicians, scientists, and engineers who are interested in the theory and applications of wavelets. It is written in a clear and concise style, making it accessible to readers with a basic understanding of mathematics. Overall, Wavelets is an important contribution to the field of signal processing and data analysis, and it remains a valuable resource for researchers and practitioners in these fields.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.