Œuvres de Charles Hermite publiées sous les auspices de l'Académie des sciences, par Émile Picard.

SUR LA FONCTION EXPONENTIELLE. 179 Or on obtient inmmdiatement _0(5, Z) = z +- +- *2 7?T + - x, (O, o ) =- 2 I - X, (X,, o ) -= - 2l 4- I, 0(0, rj = 2/1 /t+- I, O (X, (X) -= 2/112 - I +- X, et, par consequent, ces relations O/1,+1 = ( 2 i -+ I - X) ~, +( - t IT),,, (2/M 4- ')E 4- (2/, -M I 4-X),. J'observerai maintenant qu'il vient, en retranchant membre 1 m emnbre, ~/_ - EIL+1 (- x/(E L + /lL) de sorte que, ayant,, = -, + -1,, on en conclut..1 0 __ gO, )i+l - 1 -:: -E Joignons a cette equation la suivante: i/i+1 -4- l-1 - ii-+i 1 nous en deduirons les valeurs -, 1 '- + ' T -7-.,-41 -.'fli - I I 4- /2 2 et, si l'on y change in en in — r, une simple substitution, par exemple, dans la relation 40,+ 1 = (*2.7 4 -t- I - ) /,4 t- (2 M -4- I)~1/, donnera le 'rsultat pre'cedemment obtenu (p. i (5), E,,+- = (4 7m - 2 ),,L -- 2,,,-1. Soient, en second lieu, n = 2, -~ =., Z' Z1 I, Z =- 2.. d'ou f(z) =.z(= - [) (-2) = z - 3;. — z' on trouvera O(z, ) — +(-4- -)z ( - i) j92 4- 3.(' t -- -— I)- -I 1, (

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Title
Œuvres de Charles Hermite publiées sous les auspices de l'Académie des sciences, par Émile Picard.
Author
Hermite, Charles, 1822-1901.
Canvas
Page 170
Publication
Paris,: Gauthier-Villars,
1905-1917.
Subject terms
Mathematics.

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"Œuvres de Charles Hermite publiées sous les auspices de l'Académie des sciences, par Émile Picard." In the digital collection University of Michigan Historical Math Collection. https://name.umdl.umich.edu/aas7821.0003.001. University of Michigan Library Digital Collections. Accessed May 4, 2025.
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