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William Rutherford (1798–1871) was an English mathematician famous for his calculation of 208 digits of the mathematical constant π in 1841. Only the first 152 calculated digits were later found to be correct; but that broke the record of the time, which was held by the Slovenian mathematician Jurij Vega since 1789 (126 first digits correct)〔(''Use of the symbol π'' ) - Department of Mathematics, University of Auckland〕 For the current record, see Chronology of computation of π. Rutherford used the following formula:〔(''Squaring the Circle'' ) - Department of Mathematical Sciences University of Colorado at Denver〕 : ==Life== Rutherford was born about 1798. He was a master at a school at Woodburn from 1822 to 1825, when he went to Hawick, Roxburghshire, and he was later (1832–1837) a master at Corporation Academy, Berwick-on-Tweed. In 1838 Rutherford obtained a mathematical post at the Royal Military Academy, Woolwich. He was a member of the council of the Royal Astronomical Society from 1844 to 1847, and honorary secretary in 1845 and 1846. He was a friend of Wesley S. B. Woolhouse.〔 Rutherford retired from his post at Woolwich about 1864, and died on 16 September 1871, at his residence, Tweed Cottage, Maryon Road, Charlton, at the age of seventy-three.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「William Rutherford (mathematician)」の詳細全文を読む スポンサード リンク
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