Thesaurus mathematicus

"Thesaurus mathematicus," created by John Wallis in 1657, is a comprehensive mathematical reference book. It organized and explained mathematical terms, concepts, and methods of the time, serving as an early encyclopedia for mathematicians. Think of it as a detailed dictionary and guide that helps users understand the language and ideas used in mathematics during the 17th century. Its purpose was to standardize terminology and provide clarity, making it easier for scholars and students to communicate and learn about complex mathematical topics. It laid groundwork for future mathematical encyclopedias and educational resources.