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Formula:3271

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Digital Library of Mathematical Functions ID 8.11.E2

Γ ⁡ ( a , z ) = z a - 1 ⁢ e - z ⁢ ( ∑ k = 0 n - 1 u k z k + R n ⁢ ( a , z ) ) , incomplete-Gamma 𝑎 𝑧 superscript 𝑧 𝑎 1 superscript 𝑒 𝑧 superscript subscript 𝑘 0 𝑛 1 subscript 𝑢 𝑘 superscript 𝑧 𝑘 subscript 𝑅 𝑛 𝑎 𝑧 {\displaystyle{\displaystyle\Gamma\left(a,z\right)=z^{a-1}e^{-z}\left(\sum_{k=% 0}^{n-1}\frac{u_{k}}{z^{k}}+R_{n}(a,z)\right),}}


Constraint(s)

n = 1 , 2 , … 𝑛 1 2 … {\displaystyle{\displaystyle n=1,2,\dots}}

Symbols List

  • e {\displaystyle{\displaystyle\mathrm{e}}} : base of natural logarithm
  • Γ ⁡ ( a , z ) incomplete-Gamma 𝑎 𝑧 {\displaystyle{\displaystyle\Gamma\left(\NVar{a},\NVar{z}\right)}} : incomplete gamma function
  • z 𝑧 {\displaystyle{\displaystyle z}} : complex variable
  • a 𝑎 {\displaystyle{\displaystyle a}} : parameter
  • k 𝑘 {\displaystyle{\displaystyle k}} : nonnegative integer
  • n 𝑛 {\displaystyle{\displaystyle n}} : nonnegative integer
  • u k subscript 𝑢 𝑘 {\displaystyle{\displaystyle u_{k}}} : 8.11.E1
  • R n ⁢ ( a , z ) subscript 𝑅 𝑛 𝑎 𝑧 {\displaystyle{\displaystyle R_{n}(a,z)}} : remainder
  •  Edit this on Wikidata

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