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Pascal's calculator

File:Pascaline-CnAM_823-1-IMG_1506-black.jpg · Wikimedia Commons · See Wikimedia Commons

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Pascal's calculator

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Also known as Arithmetic Machine, Pascaline

thumb|A Pascaline signed by Pascal in 1652 thumb|Top view and overview of the entire mechanism. This version of Pascaline was for accounting.

Wikidata facts

Named after
Blaise Pascal
Material used
copper
Image
Arts et Metiers Pascaline dsc03869.jpg
Has use
addition
Show 6 more facts
Commons category
Pascaline
Commons gallery
Pascaline
discoverer or inventor
Blaise Pascal
inception
1642-00-00
quantity
50
created for
Étienne Pascal
Sources (2)

via Wikidata · CC0

~38 min read

Encyclopedic overview

20 sections
Contents
  • History
  • Operation
  • Inner mechanism
  • Carry mechanism
  • Operation
  • 9's complement
  • Resetting the machine
  • Addition
  • Subtraction
  • Uses
  • Production
  • Limits to distribution and controversies
  • Intellectual property
  • Social context of intellectual collaboration with craftsmen
  • Achievements
  • Competing designs
  • See also
  • Notes
  • Sources
  • External links

thumb|A Pascaline signed by Pascal in 1652 thumb|Top view and overview of the entire mechanism. This version of Pascaline was for accounting.

The Pascaline (also known as the arithmetic machine or '''Pascal's calculator''') is a mechanical calculator invented by Blaise Pascal in 1642. Pascal was led to develop a calculator by the laborious arithmetical calculations required by his father's work as the supervisor of taxes in Rouen, France. He designed the machine to add and subtract two numbers and to perform multiplication and division through repeated addition or subtraction. It used a stylus to preform caculations.

Excerpted from Wikipedia’s “Pascal's calculator” article, available under the CC BY-SA 4.0 licence.

Gallery (42)