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Counting/Caculating Inventions
è stata creata
Emily Stark
⟶ è stato aggiornato 4 nov 2019 ⟶
List of edits
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Periodi
2-foot folding slide rule
Log slide rule
Improved slide rule
Cylindrical slide rule
Duplex ruler
Slide rule
Modern Slide rule
The mechanical slide rule
The Pascal calculator
Logarithms
The first mechanical calculating machines
Mechanical pocket calculator
Slide adder pocket calculators
The oldest known example of a counting board
Hand Abacus
Russian Abacus
Chinese Abacus
Japanese Abacus
Cranmer abacus
Egyptian abacus
Napier's bones
Attempt to make a tool with Napier's rodsple of a time span
A calculating instrument with Napier's rods
The Description and Use of Two Arithmetick Instruments of Samuel Morland
Oldest known multiplication table
Oldest known tables using a base of 10
The mechanical calculator
The Comptometer
Multiplication tables
The Difference Engine no.1
The Difference Engine no.2
Smaller version of the difference engine
Martian Wiberg's version