Table of Contents
18 relations: Abacus, Boston, Calculator, Comptometer, Decimalisation, François Barrême, Germantown, Philadelphia, Imperial units, List of acts of the Parliament of the United Kingdom from 1824, Massachusetts, Mechanical calculator, Metric system, Multiplication, Simon Stevin, Slide rule, Stepped reckoner, Weights and Measures Acts (UK), William Leybourn.
Abacus
An abacus (abaci or abacuses), also called a counting frame, is a hand-operated calculating tool which was used from ancient times in the ancient Near East, Europe, China, and Russia, until the adoption of the Arabic numeral system.
Boston
Boston, officially the City of Boston, is the capital and most populous city in the Commonwealth of Massachusetts in the United States.
Calculator
An electronic calculator is typically a portable electronic device used to perform calculations, ranging from basic arithmetic to complex mathematics.
See Ready reckoner and Calculator
Comptometer
The Comptometer was the first commercially successful key-driven mechanical calculator, patented in the United States by Dorr Felt in 1887.
See Ready reckoner and Comptometer
Decimalisation
Decimalisation or decimalization (see spelling differences) is the conversion of a system of currency or of weights and measures to units related by powers of 10.
See Ready reckoner and Decimalisation
François Barrême
François of François-Bertrand Barrême (July 7, 1638 or 1640 - 1703) was a French mathematician and considered as one of the pioneers of modern accounting.
See Ready reckoner and François Barrême
Germantown, Philadelphia
Germantown (Deutschstadt) is an area in Northwest Philadelphia, Pennsylvania.
See Ready reckoner and Germantown, Philadelphia
Imperial units
The imperial system of units, imperial system or imperial units (also known as British Imperial or Exchequer Standards of 1826) is the system of units first defined in the British Weights and Measures Act 1824 and continued to be developed through a series of Weights and Measures Acts and amendments.
See Ready reckoner and Imperial units
List of acts of the Parliament of the United Kingdom from 1824
This is a complete list of acts of the Parliament of the United Kingdom for the year 1824.
See Ready reckoner and List of acts of the Parliament of the United Kingdom from 1824
Massachusetts
Massachusetts (script), officially the Commonwealth of Massachusetts, is a state in the New England region of the Northeastern United States.
See Ready reckoner and Massachusetts
Mechanical calculator
A mechanical calculator, or calculating machine, is a mechanical device used to perform the basic operations of arithmetic automatically, or (historically) a simulation such as an analog computer or a slide rule.
See Ready reckoner and Mechanical calculator
Metric system
The metric system is a decimal-based system of measurement.
See Ready reckoner and Metric system
Multiplication
Multiplication (often denoted by the cross symbol, by the mid-line dot operator, by juxtaposition, or, on computers, by an asterisk) is one of the four elementary mathematical operations of arithmetic, with the other ones being addition, subtraction, and division.
See Ready reckoner and Multiplication
Simon Stevin
Simon Stevin (1548–1620), sometimes called Stevinus, was a Flemish mathematician, scientist and music theorist.
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Slide rule
A slide rule is a hand-operated mechanical calculator consisting of slidable rulers for evaluating mathematical operations such as multiplication, division, exponents, roots, logarithms, and trigonometry.
See Ready reckoner and Slide rule
Stepped reckoner
The stepped reckoner or Leibniz calculator was a mechanical calculator invented by the German mathematician Gottfried Wilhelm Leibniz (started in 1673, when he presented a wooden model to the Royal Society of Londonand completed in 1694).
See Ready reckoner and Stepped reckoner
Weights and Measures Acts (UK)
Weights and Measures Acts are acts of the British Parliament determining the regulation of weights and measures.
See Ready reckoner and Weights and Measures Acts (UK)
William Leybourn
William Leybourn (16261716) was an English mathematician and land surveyor, author, printer and bookseller.
See Ready reckoner and William Leybourn