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 LucasL

 http://functions.wolfram.com/04.22.16.0013.01

 Input Form

 LucasL[\[Nu] + 1] LucasL[\[Nu] - 1] == LucasL[\[Nu]]^2 - 5 Cos[Pi \[Nu]]

 Standard Form

 Cell[BoxData[RowBox[List[RowBox[List[RowBox[List["LucasL", "[", RowBox[List["\[Nu]", "+", "1"]], "]"]], " ", RowBox[List["LucasL", "[", RowBox[List["\[Nu]", "-", "1"]], "]"]]]], "\[Equal]", RowBox[List[SuperscriptBox[RowBox[List["LucasL", "[", "\[Nu]", "]"]], "2"], "-", RowBox[List["5", " ", RowBox[List["Cos", "[", RowBox[List["\[Pi]", " ", "\[Nu]"]], "]"]]]]]]]]]]

 MathML Form

 L TagBox["L", LucasL] ν + 1 L TagBox["L", LucasL] ν - 1 L TagBox["L", LucasL] ν 2 - 5 cos ( π ν ) LucasL ν 1 LucasL ν -1 LucasL ν 2 -1 5 ν [/itex]

 Rule Form

 Cell[BoxData[RowBox[List[RowBox[List["HoldPattern", "[", RowBox[List[RowBox[List["LucasL", "[", RowBox[List["\[Nu]_", "+", "1"]], "]"]], " ", RowBox[List["LucasL", "[", RowBox[List["\[Nu]_", "-", "1"]], "]"]]]], "]"]], "\[RuleDelayed]", RowBox[List[SuperscriptBox[RowBox[List["LucasL", "[", "\[Nu]", "]"]], "2"], "-", RowBox[List["5", " ", RowBox[List["Cos", "[", RowBox[List["\[Pi]", " ", "\[Nu]"]], "]"]]]]]]]]]]

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

 2007-05-02