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 BesselJ

 http://functions.wolfram.com/03.01.13.0004.01

 Input Form

 Wronskian[BesselJ[\[Nu], z], BesselJ[-\[Nu], z], z] == -((2 Sin[Pi \[Nu]])/(Pi z))

 Standard Form

 Cell[BoxData[RowBox[List[RowBox[List["Wronskian", "[", RowBox[List[RowBox[List["BesselJ", "[", RowBox[List["\[Nu]", ",", "z"]], "]"]], ",", RowBox[List["BesselJ", "[", RowBox[List[RowBox[List["-", "\[Nu]"]], ",", "z"]], "]"]], ",", "z"]], "]"]], "\[Equal]", RowBox[List["-", FractionBox[RowBox[List["2", " ", RowBox[List["Sin", "[", RowBox[List["\[Pi]", " ", "\[Nu]"]], "]"]]]], RowBox[List["\[Pi]", " ", "z"]]]]]]]]]

 MathML Form

 W z ( J ν ( z ) , J - ν ( z ) ) - 2 sin ( π ν ) π z Subscript W z BesselJ ν z BesselJ -1 ν z -1 2 ν z -1 [/itex]

 Rule Form

 Cell[BoxData[RowBox[List[RowBox[List["HoldPattern", "[", RowBox[List["Wronskian", "[", RowBox[List[RowBox[List["BesselJ", "[", RowBox[List["\[Nu]_", ",", "z_"]], "]"]], ",", RowBox[List["BesselJ", "[", RowBox[List[RowBox[List["-", "\[Nu]_"]], ",", "z_"]], "]"]], ",", "z_"]], "]"]], "]"]], "\[RuleDelayed]", RowBox[List["-", FractionBox[RowBox[List["2", " ", RowBox[List["Sin", "[", RowBox[List["\[Pi]", " ", "\[Nu]"]], "]"]]]], RowBox[List["\[Pi]", " ", "z"]]]]]]]]]

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

 2001-10-29