How did Chinese characters help create a shared mathematical tradition in East Asia?

The adoption of the Chinese writing system by Japan, Korea, and Vietnam was fundamental to creating a shared mathematical tradition across East Asia. Because these nations utilized the same script, mathematical texts produced in one country could circulate freely and be read by scholars throughout the region.1

This shared linguistic foundation allowed for the following developments:

• Cross-Border Circulation: Books written in China served as the initial source of mathematical knowledge for Japan, Korea, and Vietnam. Over time, this flow became reciprocal, as works produced in Japan and Korea also found their way into Chinese scholarly circles.1
• Standardization of Knowledge: Canonical texts, such as the Ten Classics of Mathematics and The Nine Chapters on the Mathematical Procedures, provided a common framework for mathematical study. Because these works were written in Chinese characters, they defined the mathematical context for the entire region.123
• Dissemination of Methods: Even as individual countries developed their own traditions—such as the Japanese wasan—they relied on the study and interpretation of these imported Chinese texts to advance their own algebraic and computational methods.43

Ultimately, this regional cohesion was so significant that historians often describe the discipline not merely as "Chinese mathematics," but as "mathematics in Chinese characters".1