html, body, form { margin: 0; padding: 0; width: 100%; } #calculate { position: relative; width: 177px; height: 110px; background: transparent url(/images/alphabox/embed_functions_inside.gif) no-repeat scroll 0 0; } #i { position: relative; left: 18px; top: 44px; width: 133px; border: 0 none; outline: 0; font-size: 11px; } #eq { width: 9px; height: 10px; background: transparent; position: absolute; top: 47px; right: 18px; cursor: pointer; }

 Tan

 http://functions.wolfram.com/01.08.03.0011.01

 Input Form

 Tan[Pi/7] == (-2 2^(2/3) 7^(5/6) (1 - 3 I Sqrt[3])^(1/3) + 2 (7 - (I Sqrt[7])/2 - (3 Sqrt[21])/2)^(1/3) (Sqrt[7] + I Sqrt[21]) + 2 Sqrt[7] (7 + (I Sqrt[7])/2 + (3 Sqrt[21])/2)^(1/3) - 2 I Sqrt[21] (7 + (I Sqrt[7])/2 + (3 Sqrt[21])/2)^(1/3) - I (14 - I Sqrt[7] - 3 Sqrt[21])^(2/3) (14 + I Sqrt[7] + 3 Sqrt[21])^ (1/3) + Sqrt[3] (14 - I Sqrt[7] - 3 Sqrt[21])^(2/3) (14 + I Sqrt[7] + 3 Sqrt[21])^(1/3) + I (14 - I Sqrt[7] - 3 Sqrt[21])^(1/3) (14 + I Sqrt[7] + 3 Sqrt[21])^ (2/3) + Sqrt[3] (14 - I Sqrt[7] - 3 Sqrt[21])^(1/3) (14 + I Sqrt[7] + 3 Sqrt[21])^(2/3))/ (2 2^(2/3) (7 - 21 I Sqrt[3])^(1/3) + 2 Sqrt[7] (-I + Sqrt[3]) (7 - (I Sqrt[7])/2 - (3 Sqrt[21])/2)^(1/3) + 2 I Sqrt[7] (7 + (I Sqrt[7])/2 + (3 Sqrt[21])/2)^(1/3) + 2 Sqrt[21] (7 + (I Sqrt[7])/2 + (3 Sqrt[21])/2)^(1/3) + (14 - I Sqrt[7] - 3 Sqrt[21])^(2/3) (14 + I Sqrt[7] + 3 Sqrt[21])^(1/3) + I Sqrt[3] (14 - I Sqrt[7] - 3 Sqrt[21])^(2/3) (14 + I Sqrt[7] + 3 Sqrt[21])^(1/3) + (14 - I Sqrt[7] - 3 Sqrt[21])^(1/3) (14 + I Sqrt[7] + 3 Sqrt[21])^(2/3) - I Sqrt[3] (14 - I Sqrt[7] - 3 Sqrt[21])^(1/3) (14 + I Sqrt[7] + 3 Sqrt[21])^(2/3))

 Standard Form

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")"]]]]]]]]

 MathML Form

 tan ( π 7 ) ( 2 7 7 + 7 2 + 3 21 2 3 - 2 21 7 + 7 2 + 3 21 2 3 - 2 2 2 / 3 7 5 / 6 1 - 3 3 3 - ( 14 - 7 - 3 21 ) 2 / 3 14 + 7 + 3 21 3 + 3 ( 14 + 7 + 3 21 ) 2 / 3 14 - 7 - 3 21 3 + 3 14 + 7 + 3 21 3 ( 14 - 7 - 3 21 ) 2 / 3 + 2 7 - 7 2 - 3 21 2 3 ( 7 + 21 ) + ( 14 + 7 + 3 21 ) 2 / 3 14 - 7 - 3 21 3 ) / ( 2 7 7 + 7 2 + 3 21 2 3 + 2 21 7 + 7 2 + 3 21 2 3 + 2 2 2 / 3 7 - 21 3 3 + ( 14 + 7 + 3 21 ) 2 / 3 14 - 7 - 3 21 3 - 3 14 - 7 - 3 21 3 ( 14 + 7 + 3 21 ) 2 / 3 + 14 + 7 + 3 21 3 ( 14 - 7 - 3 21 ) 2 / 3 + 2 7 7 - 7 2 - 3 21 2 3 ( - + 3 ) + 3 14 + 7 + 3 21 3 ( 14 - 7 - 3 21 ) 2 / 3 ) 7 -1 2 7 1 2 7 7 1 2 2 -1 3 21 1 2 2 -1 1 3 -1 2 21 1 2 7 7 1 2 2 -1 3 21 1 2 2 -1 1 3 -1 2 2 2 3 7 5 6 1 -1 3 3 1 2 1 3 -1 14 -1 7 1 2 -1 3 21 1 2 2 3 14 7 1 2 3 21 1 2 1 3 3 1 2 14 7 1 2 3 21 1 2 2 3 14 -1 7 1 2 -1 3 21 1 2 1 3 3 1 2 14 7 1 2 3 21 1 2 1 3 14 -1 7 1 2 -1 3 21 1 2 2 3 2 7 -1 7 1 2 2 -1 -1 3 21 1 2 2 -1 1 3 7 1 2 21 1 2 14 7 1 2 3 21 1 2 2 3 14 -1 7 1 2 -1 3 21 1 2 1 3 2 7 1 2 7 7 1 2 2 -1 3 21 1 2 2 -1 1 3 2 21 1 2 7 7 1 2 2 -1 3 21 1 2 2 -1 1 3 2 2 2 3 7 -1 21 3 1 2 1 3 14 7 1 2 3 21 1 2 2 3 14 -1 7 1 2 -1 3 21 1 2 1 3 -1 3 1 2 14 -1 7 1 2 -1 3 21 1 2 1 3 14 7 1 2 3 21 1 2 2 3 14 7 1 2 3 21 1 2 1 3 14 -1 7 1 2 -1 3 21 1 2 2 3 2 7 1 2 7 -1 7 1 2 2 -1 -1 3 21 1 2 2 -1 1 3 -1 3 1 2 3 1 2 14 7 1 2 3 21 1 2 1 3 14 -1 7 1 2 -1 3 21 1 2 2 3 -1 [/itex]

 Rule Form

 Cell[BoxData[RowBox[List[RowBox[List["HoldPattern", "[", RowBox[List["Tan", "[", FractionBox["\[Pi]", "7"], "]"]], "]"]], "\[RuleDelayed]", FractionBox[RowBox[List[RowBox[List[RowBox[List["-", "2"]], " ", SuperscriptBox["2", RowBox[List["2", "/", "3"]]], " ", SuperscriptBox["7", RowBox[List["5", "/", "6"]]], " ", SuperscriptBox[RowBox[List["(", RowBox[List["1", "-", RowBox[List["3", " ", "\[ImaginaryI]", " ", SqrtBox["3"]]]]], ")"]], RowBox[List["1", "/", "3"]]]]], "+", RowBox[List["2", " ", SuperscriptBox[RowBox[List["(", RowBox[List["7", "-", FractionBox[RowBox[List["\[ImaginaryI]", " ", SqrtBox["7"]]], "2"], "-", FractionBox[RowBox[List["3", " ", SqrtBox["21"]]], "2"]]], ")"]], RowBox[List["1", "/", "3"]]], " ", RowBox[List["(", RowBox[List[SqrtBox["7"], "+", RowBox[List["\[ImaginaryI]", " ", SqrtBox["21"]]]]], ")"]]]], "+", RowBox[List["2", " ", SqrtBox["7"], " ", SuperscriptBox[RowBox[List["(", RowBox[List["7", "+", FractionBox[RowBox[List["\[ImaginaryI]", " ", SqrtBox["7"]]], 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 Date Added to functions.wolfram.com (modification date)

 2001-10-29