George Brown (inventor)
George Brown (1650–1730) was a Scottish arithmetician, and inventor of two incomplete mechanical calculating machines now kept at the National Museum of Scotland. In 1698 he was granted a patent for his mechanical calculating device.
He was minister of Stranraer, schoolmaster in Fordyce, Banffshire, and in 1680 schoolmaster at Kilmaurs, Ayrshire; invented a method of teaching the simple rules of arithmetic, which he explained in his Rotula Arithmetica, 1700. He wrote other arithmetical works; the last of them, Arithmetica Infinita, was endorsed by John Keill.
- Robert Watt, Bibliographia Britannica
- John Sinclair, New Statistical Account of Scotland, 1845
- Hew Scott, Fasti Ecclesiae Scoticanae, 1868
- An Account of the Rotula Arithmetica, Invented by Mr George Brown, Minister of Kilmaures, Edinburgh, M DC XC VIII
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