Yihongyuan [final] Link

Using the approximation of pi as 3.1415, we obtain:

For those interested in exploring the mathematical aspects of Yihongyuan in more depth, we provide a brief calculation: Yihongyuan [Final]

A = πr^2

The earliest recorded mention of Yihongyuan dates back to the Han dynasty (206 BCE - 220 CE), in the mathematical treatise "Jiu Zhang Suan Shu." This text, one of the most influential mathematical works in Chinese history, presents various mathematical problems and solutions, including those related to geometry, algebra, and arithmetic. Yihongyuan is mentioned in the context of calculating areas and volumes of geometric shapes. Using the approximation of pi as 3