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14 août 1621 - Regla de càlcul

Description:

És un calculador analògic mecànic. S'utilitza principalment per multiplicar i dividir, i també per a funcions "científiques" com les arrels,

Ajouté au bande de temps:

Timeline info

2 oct. 2017

0

0

741

Date:

14 août 1621

Maintenaint

~ Il y a 404 ans

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