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 Erf

 http://functions.wolfram.com/06.25.13.0005.01

 Input Form

 Wronskian[Erf[g[z]], 1, z] == -((2 Derivative[1][g][z])/(E^g[z]^2 Sqrt[Pi]))

 Standard Form

 Cell[BoxData[RowBox[List[RowBox[List["Wronskian", "[", RowBox[List[RowBox[List["Erf", "[", RowBox[List["g", "[", "z", "]"]], "]"]], ",", "1", ",", "z"]], "]"]], "\[Equal]", RowBox[List["-", FractionBox[RowBox[List["2", " ", SuperscriptBox["\[ExponentialE]", RowBox[List["-", SuperscriptBox[RowBox[List["g", "[", "z", "]"]], "2"]]]], RowBox[List[SuperscriptBox["g", "\[Prime]", Rule[MultilineFunction, None]], "[", "z", "]"]]]], SqrtBox["\[Pi]"]]]]]]]]

 MathML Form

 W z ( erf ( g ( z ) ) , 1 ) - 2 - g ( z ) 2 g ( z ) π Subscript W z Erf g z 1 -1 2 -1 g z 2 z g z 1 2 -1 [/itex]

 Rule Form

 Cell[BoxData[RowBox[List[RowBox[List["HoldPattern", "[", RowBox[List["Wronskian", "[", RowBox[List[RowBox[List["Erf", "[", RowBox[List["g", "[", "z_", "]"]], "]"]], ",", "1", ",", "z_"]], "]"]], "]"]], "\[RuleDelayed]", RowBox[List["-", FractionBox[RowBox[List["2", " ", SuperscriptBox["\[ExponentialE]", RowBox[List["-", SuperscriptBox[RowBox[List["g", "[", "z", "]"]], "2"]]]], " ", RowBox[List[SuperscriptBox["g", "\[Prime]", Rule[MultilineFunction, None]], "[", "z", "]"]]]], SqrtBox["\[Pi]"]]]]]]]]

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

 2007-05-02