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 Gamma

 http://functions.wolfram.com/06.06.06.0036.01

 Input Form

 Gamma[-1, z] \[Proportional] Log[z] + 1/z - 1 + EulerGamma - z/2 + z^2/12 - z^3/72 + O[z^4]

 Standard Form

 Cell[BoxData[RowBox[List[RowBox[List["Gamma", "[", RowBox[List[RowBox[List["-", "1"]], ",", "z"]], "]"]], "\[Proportional]", RowBox[List[RowBox[List["Log", "[", "z", "]"]], "+", FractionBox["1", "z"], "-", "1", "+", "EulerGamma", "-", FractionBox["z", "2"], "+", FractionBox[SuperscriptBox["z", "2"], "12"], "-", FractionBox[SuperscriptBox["z", "3"], "72"], "+", RowBox[List["O", "[", SuperscriptBox["z", "4"], "]"]]]]]]]]

 MathML Form

 Γ ( - 1 , z ) log ( z ) + 1 z + TagBox["\[DoubledGamma]", Function[EulerGamma]] - 1 - z 2 + z 2 12 - z 3 72 + O ( z 4 ) Proportional Gamma -1 z z 1 z -1 -1 -1 z 2 -1 z 2 12 -1 -1 z 3 72 -1 O z 4 [/itex]

 Rule Form

 Cell[BoxData[RowBox[List[RowBox[List["HoldPattern", "[", RowBox[List["Gamma", "[", RowBox[List[RowBox[List["-", "1"]], ",", "z_"]], "]"]], "]"]], "\[RuleDelayed]", RowBox[List[RowBox[List["Log", "[", "z", "]"]], "+", FractionBox["1", "z"], "-", "1", "+", "EulerGamma", "-", FractionBox["z", "2"], "+", FractionBox[SuperscriptBox["z", "2"], "12"], "-", FractionBox[SuperscriptBox["z", "3"], "72"], "+", SuperscriptBox[RowBox[List["O", "[", "z", "]"]], "4"]]]]]]]

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

 2007-05-02