"孫子算經" by approximately 5th century Sunzi is a mathematical treatise written during the early centuries of the Common Era. This book focuses on arithmetic and practical calculations, dealing with various mathematical concepts and problems. The likely topic of the book is the application of mathematics to practical situations, emphasizing calculations pertinent to daily life, agriculture, and trade. The content of "孫子算經" includes a series of mathematical rules and techniques, providing systematic methods
for performing calculations. The text presents problems involving measurements, weights, and various calculations related to farming and trade. Throughout the book, various examples illustrate the process of problem-solving, such as calculating areas, proportions, and divisions of resources among people. By breaking down complex problems into manageable steps, the work seeks to make mathematics accessible and applicable in real-world contexts, contributing significantly to the understanding and application of mathematical principles in ancient society. (This is an automatically generated summary.)