![A calculating machine designed and built by Gottfried Wilhelm Leibniz (1646-1716) which worked partly according to modern mathematical methods. Photo after a contemporary design drawing Stock Photo - Alamy A calculating machine designed and built by Gottfried Wilhelm Leibniz (1646-1716) which worked partly according to modern mathematical methods. Photo after a contemporary design drawing Stock Photo - Alamy](https://c8.alamy.com/comp/TA2AHJ/a-calculating-machine-designed-and-built-by-gottfried-wilhelm-leibniz-1646-1716-which-worked-partly-according-to-modern-mathematical-methods-photo-after-a-contemporary-design-drawing-TA2AHJ.jpg)
A calculating machine designed and built by Gottfried Wilhelm Leibniz (1646-1716) which worked partly according to modern mathematical methods. Photo after a contemporary design drawing Stock Photo - Alamy
![Calculadoras mecánicas: Ábaco neperiano, Gottfried Leibniz, Charles Babbage, Regla de cálculo, Máquina diferencial, Nomograma, Addiator | Amazon.com.br Calculadoras mecánicas: Ábaco neperiano, Gottfried Leibniz, Charles Babbage, Regla de cálculo, Máquina diferencial, Nomograma, Addiator | Amazon.com.br](https://m.media-amazon.com/images/I/41SpLrKuFOL._AC_UF894,1000_QL80_.jpg)
Calculadoras mecánicas: Ábaco neperiano, Gottfried Leibniz, Charles Babbage, Regla de cálculo, Máquina diferencial, Nomograma, Addiator | Amazon.com.br
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