This article is within the scope of WikiProject Biography, a collaborative effort to create, develop and organize Wikipedia's articles about people. All interested editors are invited to join the project and contribute to the discussion. For instructions on how to use this banner, please refer to the documentation.BiographyWikipedia:WikiProject BiographyTemplate:WikiProject Biographybiography articles
This article is within the scope of WikiProject Mathematics, a collaborative effort to improve the coverage of mathematics on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.MathematicsWikipedia:WikiProject MathematicsTemplate:WikiProject Mathematicsmathematics articles
This article is within the scope of WikiProject Germany, a collaborative effort to improve the coverage of Germany on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.GermanyWikipedia:WikiProject GermanyTemplate:WikiProject GermanyGermany articles
Latest comment: 16 years ago1 comment1 person in discussion
According to B.L. van der Waerden's A History of Algebra (1985), it was William Kingdon Clifford that was using this planar algebra at first. A correct statement is that Eduard Study used dual number coefficients for quaternions to represent the Euclidean group of rigid motions. The reference given is Math. Annalen 39:441-566. Date 1891.Rgdboer 22:51, 30 August 2007 (UTC)Reply
Latest comment: 13 years ago1 comment1 person in discussion
The thesis [1] names January 3rd. Quite a few other sources speak about January 6th. The latter include [2]. --Boobarkee (talk) 21:37, 17 August 2010 (UTC)Reply
