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 CoshIntegral

 http://functions.wolfram.com/06.40.02.0001.01

 Input Form

 CoshIntegral[z] == Integrate[(Cosh[t] - 1)/t, {t, 0, z}] + Log[z] + EulerGamma

 Standard Form

 Cell[BoxData[RowBox[List[RowBox[List["CoshIntegral", "[", "z", "]"]], "\[Equal]", RowBox[List[RowBox[List[SubsuperscriptBox["\[Integral]", "0", "z"], RowBox[List[FractionBox[RowBox[List[RowBox[List["Cosh", "[", "t", "]"]], "-", "1"]], "t"], RowBox[List["\[DifferentialD]", "t"]]]]]], "+", RowBox[List["Log", "[", "z", "]"]], "+", "EulerGamma"]]]]]]

 MathML Form

 Chi ( z ) 0 z cosh ( t ) - 1 t t + log ( z ) + TagBox["\[DoubledGamma]", Function[EulerGamma]] CoshIntegral z t 0 z t -1 t -1 z [/itex]

 Rule Form

 Cell[BoxData[RowBox[List[RowBox[List["HoldPattern", "[", RowBox[List["CoshIntegral", "[", "z_", "]"]], "]"]], "\[RuleDelayed]", RowBox[List[RowBox[List[SubsuperscriptBox["\[Integral]", "0", "z"], RowBox[List[FractionBox[RowBox[List[RowBox[List["Cosh", "[", "t", "]"]], "-", "1"]], "t"], RowBox[List["\[DifferentialD]", "t"]]]]]], "+", RowBox[List["Log", "[", "z", "]"]], "+", "EulerGamma"]]]]]]

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

 2001-10-29