Systematic Treatise on Arithmetic Methods The core title of the book, representing a comprehensive collection of mathematical knowledge., New Edition, Direct Guide A term indicating that the book is designed to be straightforward and easy to understand for the reader., Mathematics, Cheng Dawei A famous Ming Dynasty mathematician and merchant (1533–1606) whose work popularized the use of the abacus., Abacus Calculation original: 珠算 (zhùsuàn), the method of calculating using the Chinese abacus or suanpan.