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 BesselK

 http://functions.wolfram.com/03.04.13.0020.01

 Input Form

 Wronskian[BesselI[\[Nu], g[z]], BesselK[\[Nu], g[z]], z] == -(Derivative[1][g][z]/g[z])

 Standard Form

 Cell[BoxData[RowBox[List[RowBox[List["Wronskian", "[", RowBox[List[RowBox[List["BesselI", "[", RowBox[List["\[Nu]", ",", RowBox[List["g", "[", "z", "]"]]]], "]"]], ",", RowBox[List["BesselK", "[", RowBox[List["\[Nu]", ",", RowBox[List["g", "[", "z", "]"]]]], "]"]], ",", "z"]], "]"]], "\[Equal]", RowBox[List["-", FractionBox[RowBox[List[SuperscriptBox["g", "\[Prime]", Rule[MultilineFunction, None]], "[", "z", "]"]], RowBox[List["g", "[", "z", "]"]]]]]]]]]

 MathML Form

 W z ( I ν ( g ( z ) ) , K ν ( g ( z ) ) ) - g ( z ) g ( z ) Subscript W z BesselI ν g z BesselK ν g z -1 z g z g z -1 [/itex]

 Rule Form

 Cell[BoxData[RowBox[List[RowBox[List["HoldPattern", "[", RowBox[List["Wronskian", "[", RowBox[List[RowBox[List["BesselI", "[", RowBox[List["\[Nu]_", ",", RowBox[List["g", "[", "z_", "]"]]]], "]"]], ",", RowBox[List["BesselK", "[", RowBox[List["\[Nu]_", ",", RowBox[List["g", "[", "z_", "]"]]]], "]"]], ",", "z_"]], "]"]], "]"]], "\[RuleDelayed]", RowBox[List["-", FractionBox[RowBox[List[SuperscriptBox["g", "\[Prime]", Rule[MultilineFunction, None]], "[", "z", "]"]], RowBox[List["g", "[", "z", "]"]]]]]]]]]

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

 2007-05-02

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