The theory of determinants in the historical order of development, by Sir Thomas Muir.

44 44HISTORY. OF THE THEORY OF -DETERMINANTS alors, 'a la place de e'~quation (6) on obtiendrait la f ormule jXL =sla/31 ou (8) xI dans laquelle il suffirait de poser Ia/3 1 = pour retrouver le'quation, (6). ZRemarquons d'ailleurs que la seconde des formules (7) peut s'e'crire. comnme il suit: (9) ja/3 +j/aI= 0, et que la f ormule (9) douneI a2 I=0 ou /3P2 1=0, quand on y suppose/3 a. Done, et definitive, les transmutations (7) sont toutes trois comprises dans la formule (9). Done il suffilt de recourir cette formule et 'a celles qui s'en de'duisent, puobtenir lI~quation (5), et, par suite, pour decomposer en facteurs symboliques la somme alterne'e s, c'est-ah-dire la re'sultante alge'brique forme'e avec. les quatre termes du tableau (1)." From the case of the second order he proceeds at once to the case of the nt" order, inquiring as before under what conditions the symbolic product *(a2a +b2 /3+ c2y+... ll *(a3a +b.3/3 + c57+.. 63 *(an a + b10 4-cany + *. hn1), where a, /3, y, *.,~ are n distinct 'algebraic keys,' reduces to S(~4a b c3..h) Denoting by IK the symbolic portion of any term of the final product, he finds that "Con devra poser (14) K < = 0 quaud l'une quelcouque des lettres a, /3, y,.., entrera deux ou plusicurs fois comme facteur dans le produit K~; et poser, an contraire, (15 KC 1 ou (16) I K I = -I

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Title
The theory of determinants in the historical order of development, by Sir Thomas Muir.
Author
Muir, Thomas, Sir, 1844-1934.
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Page 42
Publication
London,: Macmillan and Co., Limited,
1906-
Subject terms
Determinants

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"The theory of determinants in the historical order of development, by Sir Thomas Muir." In the digital collection University of Michigan Historical Math Collection. https://name.umdl.umich.edu/acm9350.0002.001. University of Michigan Library Digital Collections. Accessed June 24, 2025.
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