Counting rod
01
算筹, 计算棒
a tool with marked rods or sticks used in ancient math, especially in Chinese and Japanese traditions
例子
Chinese mathematicians used counting rods to perform calculations centuries before the invention of modern calculators.
中国数学家在现代计算器发明前的几个世纪就用算筹进行计算。
The teacher demonstrated how to add and subtract using counting rods during a lesson on ancient math techniques.
老师在关于古代数学技术的课上演示了如何使用算筹进行加减法。
