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 Gamma

 http://functions.wolfram.com/06.06.16.0002.01

 Input Form

 Gamma[a - 1, z] == (1/(a - 1)) (Gamma[a, z] - z^(a - 1)/E^z)

 Standard Form

 Cell[BoxData[RowBox[List[RowBox[List["Gamma", "[", RowBox[List[RowBox[List["a", "-", "1"]], ",", "z"]], "]"]], "\[Equal]", RowBox[List[FractionBox["1", RowBox[List["a", "-", "1"]]], RowBox[List["(", RowBox[List[RowBox[List["Gamma", "[", RowBox[List["a", ",", "z"]], "]"]], "-", RowBox[List[SuperscriptBox["\[ExponentialE]", RowBox[List["-", "z"]]], " ", SuperscriptBox["z", RowBox[List["a", "-", "1"]]]]]]], ")"]]]]]]]]

 MathML Form

 Γ ( a - 1 , z ) 1 a - 1 ( Γ ( a , z ) - - z z a - 1 ) Gamma a -1 z 1 a -1 -1 Gamma a z -1 -1 z z a -1 [/itex]

 Rule Form

 Cell[BoxData[RowBox[List[RowBox[List["HoldPattern", "[", RowBox[List["Gamma", "[", RowBox[List[RowBox[List["a_", "-", "1"]], ",", "z_"]], "]"]], "]"]], "\[RuleDelayed]", FractionBox[RowBox[List[RowBox[List["Gamma", "[", RowBox[List["a", ",", "z"]], "]"]], "-", RowBox[List[SuperscriptBox["\[ExponentialE]", RowBox[List["-", "z"]]], " ", SuperscriptBox["z", RowBox[List["a", "-", "1"]]]]]]], RowBox[List["a", "-", "1"]]]]]]]

 Date Added to functions.wolfram.com (modification date)

 2001-10-29

© 1998-2013 Wolfram Research, Inc.