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ArcCos






Mathematica Notation

Traditional Notation









Elementary Functions > ArcCos[z] > Transformations > Related transformations > Differences involving the direct function > Involving tan-1(z)





http://functions.wolfram.com/01.13.16.0171.01









  


  










Input Form





ArcCos[x] - ArcTan[y] == Pi/2 - ((x + Sqrt[1 - x^2] y) (Pi - 2 ArcSin[(Sqrt[1 - x^2] - x y)/Sqrt[1 + y^2]]) + 2 Pi (x + Sqrt[1 - x^2] y + Sqrt[1 + y^2] Sqrt[(x^2 + 2 x Sqrt[1 - x^2] y + y^2 - x^2 y^2)/(1 + y^2)]) Floor[(Arg[I x + Sqrt[1 - x^2]] + Arg[(I - y)/Sqrt[1 + y^2]])/(2 Pi)] - 2 Pi (-x - Sqrt[1 - x^2] y + Sqrt[1 + y^2] Sqrt[(x^2 + 2 x Sqrt[1 - x^2] y + y^2 - x^2 y^2)/(1 + y^2)]) Floor[-((-Pi + Arg[I x + Sqrt[1 - x^2]] + Arg[(I - y)/Sqrt[1 + y^2]])/ (2 Pi))])/(2 Sqrt[(x + Sqrt[1 - x^2] y)^2/(1 + y^2)] Sqrt[1 + y^2])










Standard Form





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MathML Form







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</apply> <apply> <arg /> <apply> <times /> <apply> <plus /> <imaginaryi /> <apply> <times /> <cn type='integer'> -1 </cn> <ci> y </ci> </apply> </apply> <apply> <power /> <apply> <power /> <apply> <plus /> <apply> <power /> <ci> y </ci> <cn type='integer'> 2 </cn> </apply> <cn type='integer'> 1 </cn> </apply> <cn type='rational'> 1 <sep /> 2 </cn> </apply> <cn type='integer'> -1 </cn> </apply> </apply> </apply> <apply> <times /> <cn type='integer'> -1 </cn> <pi /> </apply> </apply> <apply> <power /> <apply> <times /> <cn type='integer'> 2 </cn> <pi /> </apply> <cn type='integer'> -1 </cn> </apply> </apply> </apply> </apply> </apply> </apply> </apply> </apply> </apply> </apply> </apply> </annotation-xml> </semantics> </math>










Rule Form





Cell[BoxData[RowBox[List[RowBox[List["HoldPattern", "[", RowBox[List[RowBox[List["ArcCos", "[", "x_", "]"]], "-", RowBox[List["ArcTan", "[", "y_", "]"]]]], "]"]], "\[RuleDelayed]", RowBox[List[FractionBox["\[Pi]", "2"], "-", FractionBox[RowBox[List[RowBox[List[RowBox[List["(", RowBox[List["x", "+", RowBox[List[SqrtBox[RowBox[List["1", "-", SuperscriptBox["x", "2"]]]], " ", "y"]]]], ")"]], " ", RowBox[List["(", RowBox[List["\[Pi]", "-", RowBox[List["2", " ", RowBox[List["ArcSin", "[", FractionBox[RowBox[List[SqrtBox[RowBox[List["1", "-", SuperscriptBox["x", "2"]]]], "-", RowBox[List["x", " ", "y"]]]], SqrtBox[RowBox[List["1", "+", SuperscriptBox["y", "2"]]]]], "]"]]]]]], ")"]]]], "+", RowBox[List["2", " ", "\[Pi]", " ", RowBox[List["(", RowBox[List["x", "+", RowBox[List[SqrtBox[RowBox[List["1", "-", SuperscriptBox["x", "2"]]]], " ", "y"]], "+", RowBox[List[SqrtBox[RowBox[List["1", "+", SuperscriptBox["y", "2"]]]], " ", SqrtBox[FractionBox[RowBox[List[SuperscriptBox["x", "2"], "+", RowBox[List["2", " ", "x", " ", SqrtBox[RowBox[List["1", "-", SuperscriptBox["x", "2"]]]], " ", "y"]], "+", SuperscriptBox["y", "2"], "-", RowBox[List[SuperscriptBox["x", "2"], " ", SuperscriptBox["y", "2"]]]]], RowBox[List["1", "+", SuperscriptBox["y", "2"]]]]]]]]], ")"]], " ", RowBox[List["Floor", "[", FractionBox[RowBox[List[RowBox[List["Arg", "[", RowBox[List[RowBox[List["\[ImaginaryI]", " ", "x"]], "+", SqrtBox[RowBox[List["1", "-", SuperscriptBox["x", "2"]]]]]], "]"]], "+", RowBox[List["Arg", "[", FractionBox[RowBox[List["\[ImaginaryI]", "-", "y"]], SqrtBox[RowBox[List["1", "+", SuperscriptBox["y", "2"]]]]], "]"]]]], RowBox[List["2", " ", "\[Pi]"]]], "]"]]]], "-", RowBox[List["2", " ", "\[Pi]", " ", RowBox[List["(", RowBox[List[RowBox[List["-", "x"]], "-", RowBox[List[SqrtBox[RowBox[List["1", "-", SuperscriptBox["x", "2"]]]], " ", "y"]], "+", RowBox[List[SqrtBox[RowBox[List["1", "+", SuperscriptBox["y", "2"]]]], " ", SqrtBox[FractionBox[RowBox[List[SuperscriptBox["x", "2"], "+", RowBox[List["2", " ", "x", " ", SqrtBox[RowBox[List["1", "-", SuperscriptBox["x", "2"]]]], " ", "y"]], "+", SuperscriptBox["y", "2"], "-", RowBox[List[SuperscriptBox["x", "2"], " ", SuperscriptBox["y", "2"]]]]], RowBox[List["1", "+", SuperscriptBox["y", "2"]]]]]]]]], ")"]], " ", RowBox[List["Floor", "[", RowBox[List["-", FractionBox[RowBox[List[RowBox[List["-", "\[Pi]"]], "+", RowBox[List["Arg", "[", RowBox[List[RowBox[List["\[ImaginaryI]", " ", "x"]], "+", SqrtBox[RowBox[List["1", "-", SuperscriptBox["x", "2"]]]]]], "]"]], "+", RowBox[List["Arg", "[", FractionBox[RowBox[List["\[ImaginaryI]", "-", "y"]], SqrtBox[RowBox[List["1", "+", SuperscriptBox["y", "2"]]]]], "]"]]]], RowBox[List["2", " ", "\[Pi]"]]]]], "]"]]]]]], RowBox[List["2", " ", SqrtBox[FractionBox[SuperscriptBox[RowBox[List["(", RowBox[List["x", "+", RowBox[List[SqrtBox[RowBox[List["1", "-", SuperscriptBox["x", "2"]]]], " ", "y"]]]], ")"]], "2"], RowBox[List["1", "+", SuperscriptBox["y", "2"]]]]], " ", SqrtBox[RowBox[List["1", "+", SuperscriptBox["y", "2"]]]]]]]]]]]]]










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





2007-05-02