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Washington Irving Stringham (December 10, 1847 – October 5, 1909) was a "Professor of Mathematics and Sometime Dean in the University of California"〔Charles Smith, Irving Stringham, ''Elementary algebra for the use of schools and colleges'' 2nd ed, (The Macmillan Company, New York, 1904).〕 born in Yorkshire, New York. Stringham is perhaps most notable as the first person to denote the natural logarithm as where is its argument. The use of in place of is commonplace in digital calculators today.
Stringham graduated from Harvard College in 1877. He earned his PhD from Johns Hopkins University in 1880. His dissertation was titled ''Regular Figures in N-dimensional Space''〔W.I. Stringham "Regular Figures in N-dimensional Space", ''American Journal of Mathematics'' Vol 3 (1880) pp 1-15.〕 under his advisor James Joseph Sylvester. In 1881 he was in Schwartzbach, Saxony, when he submitted an article on finite groups found in the quaternion algebra.〔I. Stringham (1881) "Determination of the finite quaternion groups", American Journal of Mathematics 4(1–4):345–57〕 Stringham began his professorship in mathematics at Berkeley in 1882.〔"In Memoriam, Dean Stringham" ''University of California Chronicle'' Vol XII (University Press, Berkeley, 1909) pp 1–20.〕 In 1893 in Chicago, his paper ''Formulary for an Introduction to Elliptic Functions'' was read (but not by him) at the International Mathematical Congress held in connection with the World's Columbian Exposition. ==Biographical== Irving married Martha Sherman Day. The couple raised a daughter, Martha Sherman Stringham, (March 5, 1891- August 7, 1967). 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「Irving Stringham」の詳細全文を読む スポンサード リンク
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