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 Gamma

 http://functions.wolfram.com/06.06.21.0003.01

 Input Form

 Integrate[Gamma[a, z], a] == Integrate[t^(a - 1)/Log[t]/E^t, {t, z, Infinity}]

 Standard Form

 Cell[BoxData[RowBox[List[RowBox[List["\[Integral]", RowBox[List[RowBox[List["Gamma", "[", RowBox[List["a", ",", "z"]], "]"]], RowBox[List["\[DifferentialD]", "a"]]]]]], "\[Equal]", " ", RowBox[List[SubsuperscriptBox["\[Integral]", "z", "\[Infinity]"], RowBox[List[FractionBox[SuperscriptBox["t", RowBox[List["a", "-", "1"]]], RowBox[List["Log", "[", "t", "]"]]], " ", SuperscriptBox["\[ExponentialE]", RowBox[List["-", "t"]]], RowBox[List["\[DifferentialD]", "t"]]]]]]]]]]

 MathML Form

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

 Rule Form

 Cell[BoxData[RowBox[List[RowBox[List["HoldPattern", "[", RowBox[List["\[Integral]", RowBox[List[RowBox[List["Gamma", "[", RowBox[List["a_", ",", "z_"]], "]"]], RowBox[List["\[DifferentialD]", "a_"]]]]]], "]"]], "\[RuleDelayed]", RowBox[List[SubsuperscriptBox["\[Integral]", "z", "\[Infinity]"], RowBox[List[FractionBox[RowBox[List[SuperscriptBox["t", RowBox[List["a", "-", "1"]]], " ", SuperscriptBox["\[ExponentialE]", RowBox[List["-", "t"]]]]], RowBox[List["Log", "[", "t", "]"]]], RowBox[List["\[DifferentialD]", "t"]]]]]]]]]]

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

 2001-10-29