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arithmometer
Sign in to savethumb|upright=1.3|Arithmomètre built by Louis Payen around 1887
Article
30 sectionsContents
- Evolution
- Searching for a solution: 1820–1851
- Creating an {{nowrap|industry: 1851–1887}}
- The golden age: 1887–1915
- Legacy
- History
- Design
- First machine
- Production
- Ease of use and speed
- Models
- Prices
- Development costs
- Physical design
- Input – control – execution
- Output – accumulator
- Arithmometer's Leibniz wheel
- Operations
- Sliding the top carriage
- Resetting the displays
- Addition
- Multiplication
- Subtraction
- Integer division
- Decimal division
- Variants
- See also
- Notes
- References
- External links
thumb|upright=1.3|Arithmomètre built by Louis Payen around 1887
The arithmometer () was the first digital mechanical calculator strong and reliable enough to be used daily in an office environment. This calculator could add and subtract two numbers directly and perform long multiplications and divisions effectively by using a movable accumulator for the result.