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aug 14, 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,

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ByClara
2 Oct 2017
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0
738

Date:

aug 14, 1621
Now
~ 404 years ago

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