stepped reckoner
- 步进计算器：一种17世纪由德国数学家莱布尼茨发明的机械计算器，用于进行加法、减法、乘法和除法运算。
Stepped Reckoner
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abstract:
The Step Reckoner (or Stepped Reckoner) was a digital mechanical calculator invented by German mathematician Gottfried Wilhelm Leibniz around 1672 and completed in 1694., pp.
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WordNet
