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 Power

 http://functions.wolfram.com/01.02.27.0015.01

 Input Form

 (z^a)^(1/a) == E^(((2 I Pi)/a) Floor[(Pi - Im[a Log[z]])/(2 Pi)]) z

 Standard Form

 Cell[BoxData[RowBox[List[SuperscriptBox[RowBox[List["(", SuperscriptBox["z", "a"], ")"]], RowBox[List["1", "/", "a"]]], "\[Equal]", RowBox[List[SuperscriptBox["\[ExponentialE]", RowBox[List[FractionBox[RowBox[List["2", " ", "\[ImaginaryI]", " ", "\[Pi]"]], "a"], " ", RowBox[List["Floor", "[", FractionBox[RowBox[List["\[Pi]", "-", RowBox[List["Im", "[", RowBox[List["a", " ", RowBox[List["Log", "[", "z", "]"]]]], "]"]]]], RowBox[List["2", " ", "\[Pi]"]]], "]"]]]]], " ", "z"]]]]]]

 MathML Form

 ( z a ) 1 / a 2 π a π - Im ( a log ( z ) ) 2 π z z a 1 a -1 2 a -1 -1 a z 2 -1 z [/itex]

 Rule Form

 Cell[BoxData[RowBox[List[RowBox[List["HoldPattern", "[", SuperscriptBox[RowBox[List["(", SuperscriptBox["z_", "a_"], ")"]], FractionBox["1", "a_"]], "]"]], "\[RuleDelayed]", RowBox[List[SuperscriptBox["\[ExponentialE]", FractionBox[RowBox[List[RowBox[List["(", RowBox[List["2", " ", "\[ImaginaryI]", " ", "\[Pi]"]], ")"]], " ", RowBox[List["Floor", "[", FractionBox[RowBox[List["\[Pi]", "-", RowBox[List["Im", "[", RowBox[List["a", " ", RowBox[List["Log", "[", "z", "]"]]]], "]"]]]], RowBox[List["2", " ", "\[Pi]"]]], "]"]]]], "a"]], " ", "z"]]]]]]

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

 2007-05-02