e/Rod calculus

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has glosseng: Rod calculus or rod calculation is the method of mathematical computation with counting rods in China from The Warring States to Ming dynasty before the counting rods were replaced by more convenient and faster abacus.
lexicalizationeng: rod calculus
instance ofc/Mathematical tools
Meaning
Chinese
has glosszho: 筹算是中国古代使用算筹进行计算的方法。具体出现时间已然不可考,但根据典籍记录和考古发现,至少在战国初年筹算已然出现。它使用中国商代发明的十进位制计数,可以很方便地进行四则运算以及乘方,开方等较复杂运算,并可以对零、负数和分数作出表示与计算。从战国时期一直到明朝被珠算取代之前,筹算不但是中国古代进行日常计算的方法,更是中国古代数学家研究数学时常用的计算器具,是中国古代各种重要数学发明的基础,开创了中国古代以计算为中心的数学体系,与古希腊以逻辑推理为中心的数学体系有所不同。
lexicalizationzho: 筹算
Media
media:imgChounumerals.jpg
media:imgRod calculus Addition.jpg
media:imgRod calculus addition 2.jpg
media:imgRod calculus division.jpg
media:imgRod calculus multiplication.jpg
media:imgRod fraction.jpg
media:imgRod subtraction with carry.jpg
media:imgRod subtraction.jpg
media:imgRod231.jpg
media:imgRodnumberwithzero.jpg

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