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 | | http://functions.wolfram.com/01.30.16.0221.01 | 
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 | | ArcSech[x] - I ArcCot[y] == 
 ((I Sqrt[1 - ((-1)^Floor[1/2 - Arg[(1/x - (I Sqrt[1/x - 1] Sqrt[1 + 1/x])/y)/
               Sqrt[1 + 1/y^2]]/Pi] (I Sqrt[1/x - 1] Sqrt[1 + 1/x] + 
          1/(x y)))/Sqrt[1 + 1/y^2]])/
    Sqrt[((-1)^Floor[1/2 - Arg[(1/x - (I Sqrt[1/x - 1] Sqrt[1 + 1/x])/y)/
              Sqrt[1 + 1/y^2]]/Pi] (I Sqrt[1/x - 1] Sqrt[1 + 1/x] + 1/(x y)))/
       Sqrt[1 + 1/y^2] - 1]) ArcSech[Sqrt[1 + 1/y^2]/
     ((-1)^Floor[1/2 - Arg[(1/x - (I Sqrt[1/x - 1] Sqrt[1 + 1/x])/y)/
            Sqrt[1 + 1/y^2]]/Pi] (I Sqrt[1/x - 1] Sqrt[1 + 1/x] + 
       1/(x y)))] - (1/4) I (1 + (-1)^(-Floor[-(Arg[1 - 1/x]/(2 Pi))])) Pi 
   (2 (1 + (-1)^Floor[1/2 - Arg[(Sqrt[1 - 1/x^2]/y + 1/x)/Sqrt[1 + 1/y^2]]/
          Pi]) Floor[(Arg[Sqrt[1 - 1/x^2] + I/x] + 
        Arg[(I - 1/y)/Sqrt[1 + 1/y^2]])/(2 Pi)] + 
    (-1)^Floor[1/2 - Arg[(Sqrt[1 - 1/x^2]/y + 1/x)/Sqrt[1 + 1/y^2]]/Pi] - 
    2 (-1 + (-1)^Floor[1/2 - Arg[(Sqrt[1 - 1/x^2]/y + 1/x)/Sqrt[1 + 1/y^2]]/
          Pi]) Floor[1/2 - (Arg[Sqrt[1 - 1/x^2] + I/x] + 
         Arg[(I - 1/y)/Sqrt[1 + 1/y^2]])/(2 Pi)] - 1) + 
  (1/4) I (1 - (-1)^(-Floor[-(Arg[1 - 1/x]/(2 Pi))])) Pi 
   (2 (1 + (-1)^Floor[1/2 - Arg[(1/x - Sqrt[1 - 1/x^2]/y)/Sqrt[1 + 1/y^2]]/
          Pi]) Floor[(Arg[Sqrt[1 - 1/x^2] + I/x] + 
        Arg[(I + 1/y)/Sqrt[1 + 1/y^2]])/(2 Pi)] + 
    (-1)^Floor[1/2 - Arg[(1/x - Sqrt[1 - 1/x^2]/y)/Sqrt[1 + 1/y^2]]/Pi] - 
    2 (-1 + (-1)^Floor[1/2 - Arg[(1/x - Sqrt[1 - 1/x^2]/y)/Sqrt[1 + 1/y^2]]/
          Pi]) Floor[1/2 - (Arg[Sqrt[1 - 1/x^2] + I/x] + 
         Arg[(I + 1/y)/Sqrt[1 + 1/y^2]])/(2 Pi)] - 1) - (I Pi)/2 | 
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 | | Cell[BoxData[RowBox[List[RowBox[List[RowBox[List["ArcSech", "[", "x", "]"]], "-", RowBox[List["\[ImaginaryI]", "  ", RowBox[List["ArcCot", "[", "y", "]"]]]]]], "\[Equal]", RowBox[List[RowBox[List[RowBox[List[RowBox[List["(", RowBox[List["\[ImaginaryI]", " ", SqrtBox[RowBox[List["1", "-", FractionBox[RowBox[List[SuperscriptBox[RowBox[List["(", RowBox[List["-", "1"]], ")"]], RowBox[List["Floor", "[", RowBox[List[FractionBox["1", "2"], "-", FractionBox[RowBox[List["Arg", "[", FractionBox[RowBox[List[FractionBox["1", "x"], "-", FractionBox[RowBox[List["\[ImaginaryI]", " ", SqrtBox[RowBox[List[FractionBox["1", "x"], "-", "1"]]], " ", SqrtBox[RowBox[List["1", "+", FractionBox["1", "x"]]]]]], "y"]]], SqrtBox[RowBox[List["1", "+", FractionBox["1", SuperscriptBox["y", "2"]]]]]], "]"]], "\[Pi]"]]], "]"]]], " ", RowBox[List["(", RowBox[List[RowBox[List["\[ImaginaryI]", " ", SqrtBox[RowBox[List[FractionBox["1", "x"], "-", "1"]]], " ", SqrtBox[RowBox[List["1", "+", FractionBox["1", "x"]]]]]], "+", FractionBox["1", RowBox[List["x", " ", "y"]]]]], ")"]]]], SqrtBox[RowBox[List["1", "+", FractionBox["1", SuperscriptBox["y", "2"]]]]]]]]]]], " ", ")"]], "/", RowBox[List["(", SqrtBox[RowBox[List[FractionBox[RowBox[List[SuperscriptBox[RowBox[List["(", RowBox[List["-", "1"]], ")"]], RowBox[List["Floor", "[", RowBox[List[FractionBox["1", "2"], "-", FractionBox[RowBox[List["Arg", "[", FractionBox[RowBox[List[FractionBox["1", "x"], "-", FractionBox[RowBox[List["\[ImaginaryI]", " ", SqrtBox[RowBox[List[FractionBox["1", "x"], "-", "1"]]], " ", SqrtBox[RowBox[List["1", "+", FractionBox["1", "x"]]]]]], "y"]]], SqrtBox[RowBox[List["1", "+", FractionBox["1", SuperscriptBox["y", "2"]]]]]], "]"]], "\[Pi]"]]], "]"]]], " ", RowBox[List["(", RowBox[List[RowBox[List["\[ImaginaryI]", " ", SqrtBox[RowBox[List[FractionBox["1", "x"], "-", "1"]]], " ", SqrtBox[RowBox[List["1", "+", FractionBox["1", "x"]]]]]], "+", FractionBox["1", RowBox[List["x", " ", "y"]]]]], ")"]]]], SqrtBox[RowBox[List["1", "+", FractionBox["1", SuperscriptBox["y", "2"]]]]]], "-", "1"]]], ")"]]]], RowBox[List["ArcSech", "[", FractionBox[RowBox[List[SuperscriptBox[RowBox[List["(", RowBox[List["-", "1"]], ")"]], RowBox[List["-", RowBox[List["Floor", "[", RowBox[List[FractionBox["1", "2"], "-", FractionBox[RowBox[List["Arg", "[", FractionBox[RowBox[List[FractionBox["1", "x"], "-", FractionBox[RowBox[List["\[ImaginaryI]", " ", SqrtBox[RowBox[List[FractionBox["1", "x"], "-", "1"]]], " ", SqrtBox[RowBox[List["1", "+", FractionBox["1", "x"]]]]]], "y"]]], SqrtBox[RowBox[List["1", "+", FractionBox["1", SuperscriptBox["y", "2"]]]]]], "]"]], "\[Pi]"]]], "]"]]]]], " ", SqrtBox[RowBox[List["1", "+", FractionBox["1", SuperscriptBox["y", "2"]]]]]]], RowBox[List[RowBox[List["\[ImaginaryI]", " ", SqrtBox[RowBox[List[FractionBox["1", "x"], "-", "1"]]], " ", SqrtBox[RowBox[List["1", "+", FractionBox["1", "x"]]]]]], "+", FractionBox["1", RowBox[List["x", " ", "y"]]]]]], "]"]]]], "-", RowBox[List[FractionBox["1", "4"], " ", "\[ImaginaryI]", " ", RowBox[List["(", RowBox[List["1", "+", SuperscriptBox[RowBox[List["(", RowBox[List["-", "1"]], ")"]], RowBox[List["-", RowBox[List["Floor", "[", RowBox[List["-", FractionBox[RowBox[List["Arg", "[", RowBox[List["1", "-", FractionBox["1", "x"]]], "]"]], RowBox[List["2", " ", "\[Pi]"]]]]], "]"]]]]]]], ")"]], " ", "\[Pi]", " ", RowBox[List["(", RowBox[List[RowBox[List["2", " ", RowBox[List["(", RowBox[List["1", "+", SuperscriptBox[RowBox[List["(", RowBox[List["-", "1"]], ")"]], RowBox[List["Floor", "[", RowBox[List[FractionBox["1", "2"], "-", FractionBox[RowBox[List["Arg", "[", FractionBox[RowBox[List[FractionBox[SqrtBox[RowBox[List["1", "-", FractionBox["1", SuperscriptBox["x", "2"]]]]], "y"], "+", FractionBox["1", "x"]]], SqrtBox[RowBox[List["1", "+", FractionBox["1", SuperscriptBox["y", "2"]]]]]], "]"]], "\[Pi]"]]], "]"]]]]], ")"]], " ", RowBox[List["Floor", "[", FractionBox[RowBox[List[RowBox[List["Arg", "[", RowBox[List[SqrtBox[RowBox[List["1", "-", FractionBox["1", SuperscriptBox["x", "2"]]]]], "+", FractionBox["\[ImaginaryI]", "x"]]], "]"]], "+", RowBox[List["Arg", "[", FractionBox[RowBox[List["\[ImaginaryI]", "-", FractionBox["1", "y"]]], SqrtBox[RowBox[List["1", "+", FractionBox["1", SuperscriptBox["y", "2"]]]]]], "]"]]]], RowBox[List["2", " ", "\[Pi]"]]], "]"]]]], "+", SuperscriptBox[RowBox[List["(", RowBox[List["-", "1"]], ")"]], RowBox[List["Floor", "[", RowBox[List[FractionBox["1", "2"], "-", FractionBox[RowBox[List["Arg", "[", FractionBox[RowBox[List[FractionBox[SqrtBox[RowBox[List["1", "-", FractionBox["1", SuperscriptBox["x", "2"]]]]], "y"], "+", FractionBox["1", "x"]]], SqrtBox[RowBox[List["1", "+", FractionBox["1", SuperscriptBox["y", "2"]]]]]], "]"]], "\[Pi]"]]], "]"]]], "-", RowBox[List["2", " ", RowBox[List["(", RowBox[List[RowBox[List["-", "1"]], "+", SuperscriptBox[RowBox[List["(", RowBox[List["-", "1"]], ")"]], RowBox[List["Floor", "[", RowBox[List[FractionBox["1", "2"], "-", FractionBox[RowBox[List["Arg", "[", FractionBox[RowBox[List[FractionBox[SqrtBox[RowBox[List["1", "-", FractionBox["1", SuperscriptBox["x", "2"]]]]], "y"], "+", FractionBox["1", "x"]]], SqrtBox[RowBox[List["1", "+", FractionBox["1", SuperscriptBox["y", "2"]]]]]], "]"]], "\[Pi]"]]], "]"]]]]], ")"]], " ", RowBox[List["Floor", "[", RowBox[List[FractionBox["1", "2"], "-", FractionBox[RowBox[List[RowBox[List["Arg", "[", RowBox[List[SqrtBox[RowBox[List["1", "-", FractionBox["1", SuperscriptBox["x", "2"]]]]], "+", FractionBox["\[ImaginaryI]", "x"]]], "]"]], "+", RowBox[List["Arg", "[", FractionBox[RowBox[List["\[ImaginaryI]", "-", FractionBox["1", "y"]]], SqrtBox[RowBox[List["1", "+", FractionBox["1", SuperscriptBox["y", "2"]]]]]], "]"]]]], RowBox[List["2", " ", "\[Pi]"]]]]], "]"]]]], "-", "1"]], ")"]]]], "+", RowBox[List[FractionBox["1", "4"], " ", "\[ImaginaryI]", " ", RowBox[List["(", RowBox[List["1", "-", SuperscriptBox[RowBox[List["(", RowBox[List["-", "1"]], ")"]], RowBox[List["-", RowBox[List["Floor", "[", RowBox[List["-", FractionBox[RowBox[List["Arg", "[", RowBox[List["1", "-", FractionBox["1", "x"]]], "]"]], RowBox[List["2", " ", "\[Pi]"]]]]], "]"]]]]]]], ")"]], " ", "\[Pi]", " ", RowBox[List["(", RowBox[List[RowBox[List["2", " ", RowBox[List["(", RowBox[List["1", "+", SuperscriptBox[RowBox[List["(", RowBox[List["-", "1"]], ")"]], RowBox[List["Floor", "[", RowBox[List[FractionBox["1", "2"], "-", FractionBox[RowBox[List["Arg", "[", FractionBox[RowBox[List[FractionBox["1", "x"], "-", FractionBox[SqrtBox[RowBox[List["1", "-", FractionBox["1", SuperscriptBox["x", "2"]]]]], "y"]]], SqrtBox[RowBox[List["1", "+", FractionBox["1", SuperscriptBox["y", "2"]]]]]], "]"]], "\[Pi]"]]], "]"]]]]], ")"]], " ", RowBox[List["Floor", "[", FractionBox[RowBox[List[RowBox[List["Arg", "[", RowBox[List[SqrtBox[RowBox[List["1", "-", FractionBox["1", SuperscriptBox["x", "2"]]]]], "+", FractionBox["\[ImaginaryI]", "x"]]], "]"]], "+", RowBox[List["Arg", "[", FractionBox[RowBox[List["\[ImaginaryI]", "+", FractionBox["1", "y"]]], SqrtBox[RowBox[List["1", "+", FractionBox["1", SuperscriptBox["y", "2"]]]]]], "]"]]]], RowBox[List["2", " ", "\[Pi]"]]], "]"]]]], "+", SuperscriptBox[RowBox[List["(", RowBox[List["-", "1"]], ")"]], RowBox[List["Floor", "[", RowBox[List[FractionBox["1", "2"], "-", FractionBox[RowBox[List["Arg", "[", FractionBox[RowBox[List[FractionBox["1", "x"], "-", FractionBox[SqrtBox[RowBox[List["1", "-", FractionBox["1", SuperscriptBox["x", "2"]]]]], "y"]]], SqrtBox[RowBox[List["1", "+", FractionBox["1", SuperscriptBox["y", "2"]]]]]], "]"]], "\[Pi]"]]], "]"]]], "-", RowBox[List["2", " ", RowBox[List["(", RowBox[List[RowBox[List["-", "1"]], "+", SuperscriptBox[RowBox[List["(", RowBox[List["-", "1"]], ")"]], RowBox[List["Floor", "[", RowBox[List[FractionBox["1", "2"], "-", FractionBox[RowBox[List["Arg", "[", FractionBox[RowBox[List[FractionBox["1", "x"], "-", FractionBox[SqrtBox[RowBox[List["1", "-", FractionBox["1", SuperscriptBox["x", "2"]]]]], "y"]]], SqrtBox[RowBox[List["1", "+", FractionBox["1", SuperscriptBox["y", "2"]]]]]], "]"]], "\[Pi]"]]], "]"]]]]], ")"]], " ", RowBox[List["Floor", "[", RowBox[List[FractionBox["1", "2"], "-", FractionBox[RowBox[List[RowBox[List["Arg", "[", RowBox[List[SqrtBox[RowBox[List["1", "-", FractionBox["1", SuperscriptBox["x", "2"]]]]], "+", FractionBox["\[ImaginaryI]", "x"]]], "]"]], "+", RowBox[List["Arg", "[", FractionBox[RowBox[List["\[ImaginaryI]", "+", FractionBox["1", "y"]]], SqrtBox[RowBox[List["1", "+", FractionBox["1", SuperscriptBox["y", "2"]]]]]], "]"]]]], RowBox[List["2", " ", "\[Pi]"]]]]], "]"]]]], "-", "1"]], ")"]]]], "-", FractionBox[RowBox[List["\[ImaginaryI]", " ", "\[Pi]"]], "2"]]]]]]] | 
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   <math xmlns='http://www.w3.org/1998/Math/MathML' mathematica:form='TraditionalForm' xmlns:mathematica='http://www.wolfram.com/XML/'>  <semantics>  <mrow>  <mrow>  <mrow>  <msup>  <mi> sech </mi>  <mrow>  <mo> - </mo>  <mn> 1 </mn>  </mrow>  </msup>  <mo> ( </mo>  <mi> x </mi>  <mo> ) </mo>  </mrow>  <mo> - </mo>  <mrow>  <mi> ⅈ </mi>  <mo> ⁢ </mo>  <mrow>  <msup>  <mi> cot </mi>  <mrow>  <mo> - </mo>  <mn> 1 </mn>  </mrow>  </msup>  <mo> ( </mo>  <mi> y </mi>  <mo> ) </mo>  </mrow>  </mrow>  </mrow>  <mo>  </mo>  <mrow>  <mrow>  <mfrac>  <mrow>  <mi> ⅈ </mi>  <mo> ⁢ </mo>  <msqrt>  <mrow>  <mn> 1 </mn>  <mo> - </mo>  <mfrac>  <mrow>  <msup>  <mrow>  <mo> ( </mo>  <mrow>  <mo> - </mo>  <mn> 1 </mn>  </mrow>  <mo> ) </mo>  </mrow>  <mrow>  <mo> ⌊ </mo>  <mrow>  <mfrac>  <mn> 1 </mn>  <mn> 2 </mn>  </mfrac>  <mo> - </mo>  <mfrac>  <mrow>  <mi> arg </mi>  <mo> ⁡ </mo>  <mo> ( </mo>  <mfrac>  <mrow>  <mfrac>  <mn> 1 </mn>  <mi> x </mi>  </mfrac>  <mo> - </mo>  <mfrac>  <mrow>  <mi> ⅈ </mi>  <mo> ⁢ </mo>  <msqrt>  <mrow>  <mfrac>  <mn> 1 </mn>  <mi> x </mi>  </mfrac>  <mo> - </mo>  <mn> 1 </mn>  </mrow>  </msqrt>  <mo> ⁢ </mo>  <msqrt>  <mrow>  <mn> 1 </mn>  <mo> + </mo>  <mfrac>  <mn> 1 </mn>  <mi> x </mi>  </mfrac>  </mrow>  </msqrt>  </mrow>  <mi> y </mi>  </mfrac>  </mrow>  <msqrt>  <mrow>  <mn> 1 </mn>  <mo> + </mo>  <mfrac>  <mn> 1 </mn>  <msup>  <mi> y </mi>  <mn> 2 </mn>  </msup>  </mfrac>  </mrow>  </msqrt>  </mfrac>  <mo> ) </mo>  </mrow>  <mi> π </mi>  </mfrac>  </mrow>  <mo> ⌋ </mo>  </mrow>  </msup>  <mo> ⁢ </mo>  <mrow>  <mo> ( </mo>  <mrow>  <mrow>  <mi> ⅈ </mi>  <mo> ⁢ </mo>  <msqrt>  <mrow>  <mfrac>  <mn> 1 </mn>  <mi> x </mi>  </mfrac>  <mo> - </mo>  <mn> 1 </mn>  </mrow>  </msqrt>  <mo> ⁢ </mo>  <msqrt>  <mrow>  <mn> 1 </mn>  <mo> + </mo>  <mfrac>  <mn> 1 </mn>  <mi> x </mi>  </mfrac>  </mrow>  </msqrt>  </mrow>  <mo> + </mo>  <mfrac>  <mn> 1 </mn>  <mrow>  <mi> x </mi>  <mo> ⁢ </mo>  <mi> y </mi>  </mrow>  </mfrac>  </mrow>  <mo> ) </mo>  </mrow>  </mrow>  <msqrt>  <mrow>  <mn> 1 </mn>  <mo> + </mo>  <mfrac>  <mn> 1 </mn>  <msup>  <mi> y </mi>  <mn> 2 </mn>  </msup>  </mfrac>  </mrow>  </msqrt>  </mfrac>  </mrow>  </msqrt>  <mtext>   </mtext>  </mrow>  <msqrt>  <mrow>  <mfrac>  <mrow>  <msup>  <mrow>  <mo> ( </mo>  <mrow>  <mo> - </mo>  <mn> 1 </mn>  </mrow>  <mo> ) </mo>  </mrow>  <mrow>  <mo> ⌊ </mo>  <mrow>  <mfrac>  <mn> 1 </mn>  <mn> 2 </mn>  </mfrac>  <mo> - </mo>  <mfrac>  <mrow>  <mi> arg </mi>  <mo> ⁡ </mo>  <mo> ( </mo>  <mfrac>  <mrow>  <mfrac>  <mn> 1 </mn>  <mi> x </mi>  </mfrac>  <mo> - </mo>  <mfrac>  <mrow>  <mi> ⅈ </mi>  <mo> ⁢ </mo>  <msqrt>  <mrow>  <mfrac>  <mn> 1 </mn>  <mi> x </mi>  </mfrac>  <mo> - </mo>  <mn> 1 </mn>  </mrow>  </msqrt>  <mo> ⁢ </mo>  <msqrt>  <mrow>  <mn> 1 </mn>  <mo> + </mo>  <mfrac>  <mn> 1 </mn>  <mi> x </mi>  </mfrac>  </mrow>  </msqrt>  </mrow>  <mi> y </mi>  </mfrac>  </mrow>  <msqrt>  <mrow>  <mn> 1 </mn>  <mo> + </mo>  <mfrac>  <mn> 1 </mn>  <msup>  <mi> y </mi>  <mn> 2 </mn>  </msup>  </mfrac>  </mrow>  </msqrt>  </mfrac>  <mo> ) </mo>  </mrow>  <mi> π </mi>  </mfrac>  </mrow>  <mo> ⌋ </mo>  </mrow>  </msup>  <mo> ⁢ </mo>  <mrow>  <mo> ( </mo>  <mrow>  <mrow>  <mi> ⅈ </mi>  <mo> ⁢ </mo>  <msqrt>  <mrow>  <mfrac>  <mn> 1 </mn>  <mi> x </mi>  </mfrac>  <mo> - </mo>  <mn> 1 </mn>  </mrow>  </msqrt>  <mo> ⁢ </mo>  <msqrt>  <mrow>  <mn> 1 </mn>  <mo> + </mo>  <mfrac>  <mn> 1 </mn>  <mi> x </mi>  </mfrac>  </mrow>  </msqrt>  </mrow>  <mo> + </mo>  <mfrac>  <mn> 1 </mn>  <mrow>  <mi> x </mi>  <mo> ⁢ </mo>  <mi> y </mi>  </mrow>  </mfrac>  </mrow>  <mo> ) </mo>  </mrow>  </mrow>  <msqrt>  <mrow>  <mn> 1 </mn>  <mo> + </mo>  <mfrac>  <mn> 1 </mn>  <msup>  <mi> y </mi>  <mn> 2 </mn>  </msup>  </mfrac>  </mrow>  </msqrt>  </mfrac>  <mo> - </mo>  <mn> 1 </mn>  </mrow>  </msqrt>  </mfrac>  <mo> ⁢ </mo>  <mrow>  <msup>  <mi> sech </mi>  <mrow>  <mo> - </mo>  <mn> 1 </mn>  </mrow>  </msup>  <mo> ( </mo>  <mfrac>  <mrow>  <msup>  <mrow>  <mo> ( </mo>  <mrow>  <mo> - </mo>  <mn> 1 </mn>  </mrow>  <mo> ) </mo>  </mrow>  <mrow>  <mo> - </mo>  <mrow>  <mo> ⌊ </mo>  <mrow>  <mfrac>  <mn> 1 </mn>  <mn> 2 </mn>  </mfrac>  <mo> - </mo>  <mfrac>  <mrow>  <mi> arg </mi>  <mo> ⁡ </mo>  <mo> ( </mo>  <mfrac>  <mrow>  <mfrac>  <mn> 1 </mn>  <mi> x </mi>  </mfrac>  <mo> - </mo>  <mfrac>  <mrow>  <mi> ⅈ </mi>  <mo> ⁢ </mo>  <msqrt>  <mrow>  <mfrac>  <mn> 1 </mn>  <mi> x </mi>  </mfrac>  <mo> - </mo>  <mn> 1 </mn>  </mrow>  </msqrt>  <mo> ⁢ </mo>  <msqrt>  <mrow>  <mn> 1 </mn>  <mo> + </mo>  <mfrac>  <mn> 1 </mn>  <mi> x </mi>  </mfrac>  </mrow>  </msqrt>  </mrow>  <mi> y </mi>  </mfrac>  </mrow>  <msqrt>  <mrow>  <mn> 1 </mn>  <mo> + </mo>  <mfrac>  <mn> 1 </mn>  <msup>  <mi> y </mi>  <mn> 2 </mn>  </msup>  </mfrac>  </mrow>  </msqrt>  </mfrac>  <mo> ) </mo>  </mrow>  <mi> π </mi>  </mfrac>  </mrow>  <mo> ⌋ </mo>  </mrow>  </mrow>  </msup>  <mo> ⁢ </mo>  <msqrt>  <mrow>  <mn> 1 </mn>  <mo> + </mo>  <mfrac>  <mn> 1 </mn>  <msup>  <mi> y </mi>  <mn> 2 </mn>  </msup>  </mfrac>  </mrow>  </msqrt>  </mrow>  <mrow>  <mrow>  <mi> ⅈ </mi>  <mo> ⁢ </mo>  <msqrt>  <mrow>  <mfrac>  <mn> 1 </mn>  <mi> x </mi>  </mfrac>  <mo> - </mo>  <mn> 1 </mn>  </mrow>  </msqrt>  <mo> ⁢ </mo>  <msqrt>  <mrow>  <mn> 1 </mn>  <mo> + </mo>  <mfrac>  <mn> 1 </mn>  <mi> x </mi>  </mfrac>  </mrow>  </msqrt>  </mrow>  <mo> + </mo>  <mfrac>  <mn> 1 </mn>  <mrow>  <mi> x </mi>  <mo> ⁢ </mo>  <mi> y </mi>  </mrow>  </mfrac>  </mrow>  </mfrac>  <mo> ) </mo>  </mrow>  </mrow>  <mo> - </mo>  <mrow>  <mfrac>  <mn> 1 </mn>  <mn> 4 </mn>  </mfrac>  <mo> ⁢ </mo>  <mi> ⅈ </mi>  <mo> ⁢ </mo>  <mrow>  <mo> ( </mo>  <mrow>  <mn> 1 </mn>  <mo> + </mo>  <msup>  <mrow>  <mo> ( </mo>  <mrow>  <mo> - </mo>  <mn> 1 </mn>  </mrow>  <mo> ) </mo>  </mrow>  <mrow>  <mo> - </mo>  <mrow>  <mo> ⌊ </mo>  <mrow>  <mo> - </mo>  <mfrac>  <mrow>  <mi> arg </mi>  <mo> ⁡ </mo>  <mo> ( </mo>  <mrow>  <mn> 1 </mn>  <mo> - </mo>  <mfrac>  <mn> 1 </mn>  <mi> x </mi>  </mfrac>  </mrow>  <mo> ) </mo>  </mrow>  <mrow>  <mn> 2 </mn>  <mo> ⁢ </mo>  <mi> π </mi>  </mrow>  </mfrac>  </mrow>  <mo> ⌋ </mo>  </mrow>  </mrow>  </msup>  </mrow>  <mo> ) </mo>  </mrow>  <mo> ⁢ </mo>  <mi> π </mi>  <mo> ⁢ </mo>  <mrow>  <mo> ( </mo>  <mrow>  <mrow>  <mn> 2 </mn>  <mo> ⁢ </mo>  <mrow>  <mo> ( </mo>  <mrow>  <mn> 1 </mn>  <mo> + </mo>  <msup>  <mrow>  <mo> ( </mo>  <mrow>  <mo> - </mo>  <mn> 1 </mn>  </mrow>  <mo> ) </mo>  </mrow>  <mrow>  <mo> ⌊ </mo>  <mrow>  <mfrac>  <mn> 1 </mn>  <mn> 2 </mn>  </mfrac>  <mo> - </mo>  <mfrac>  <mrow>  <mi> arg </mi>  <mo> ⁡ </mo>  <mo> ( </mo>  <mfrac>  <mrow>  <mfrac>  <msqrt>  <mrow>  <mn> 1 </mn>  <mo> - </mo>  <mfrac>  <mn> 1 </mn>  <msup>  <mi> x </mi>  <mn> 2 </mn>  </msup>  </mfrac>  </mrow>  </msqrt>  <mi> y </mi>  </mfrac>  <mo> + </mo>  <mfrac>  <mn> 1 </mn>  <mi> x </mi>  </mfrac>  </mrow>  <msqrt>  <mrow>  <mn> 1 </mn>  <mo> + </mo>  <mfrac>  <mn> 1 </mn>  <msup>  <mi> y </mi>  <mn> 2 </mn>  </msup>  </mfrac>  </mrow>  </msqrt>  </mfrac>  <mo> ) </mo>  </mrow>  <mi> π </mi>  </mfrac>  </mrow>  <mo> ⌋ </mo>  </mrow>  </msup>  </mrow>  <mo> ) </mo>  </mrow>  <mo> ⁢ </mo>  <mrow>  <mo> ⌊ </mo>  <mfrac>  <mrow>  <mrow>  <mi> arg </mi>  <mo> ⁡ </mo>  <mo> ( </mo>  <mrow>  <msqrt>  <mrow>  <mn> 1 </mn>  <mo> - </mo>  <mfrac>  <mn> 1 </mn>  <msup>  <mi> x </mi>  <mn> 2 </mn>  </msup>  </mfrac>  </mrow>  </msqrt>  <mo> + </mo>  <mfrac>  <mi> ⅈ </mi>  <mi> x </mi>  </mfrac>  </mrow>  <mo> ) </mo>  </mrow>  <mo> + </mo>  <mrow>  <mi> arg </mi>  <mo> ⁡ </mo>  <mo> ( </mo>  <mfrac>  <mrow>  <mi> ⅈ </mi>  <mo> - </mo>  <mfrac>  <mn> 1 </mn>  <mi> y </mi>  </mfrac>  </mrow>  <msqrt>  <mrow>  <mn> 1 </mn>  <mo> + </mo>  <mfrac>  <mn> 1 </mn>  <msup>  <mi> y </mi>  <mn> 2 </mn>  </msup>  </mfrac>  </mrow>  </msqrt>  </mfrac>  <mo> ) </mo>  </mrow>  </mrow>  <mrow>  <mn> 2 </mn>  <mo> ⁢ </mo>  <mi> π </mi>  </mrow>  </mfrac>  <mo> ⌋ </mo>  </mrow>  </mrow>  <mo> + </mo>  <msup>  <mrow>  <mo> ( </mo>  <mrow>  <mo> - </mo>  <mn> 1 </mn>  </mrow>  <mo> ) </mo>  </mrow>  <mrow>  <mo> ⌊ </mo>  <mrow>  <mfrac>  <mn> 1 </mn>  <mn> 2 </mn>  </mfrac>  <mo> - </mo>  <mfrac>  <mrow>  <mi> arg </mi>  <mo> ⁡ </mo>  <mo> ( </mo>  <mfrac>  <mrow>  <mfrac>  <msqrt>  <mrow>  <mn> 1 </mn>  <mo> - </mo>  <mfrac>  <mn> 1 </mn>  <msup>  <mi> x </mi>  <mn> 2 </mn>  </msup>  </mfrac>  </mrow>  </msqrt>  <mi> y </mi>  </mfrac>  <mo> + </mo>  <mfrac>  <mn> 1 </mn>  <mi> x </mi>  </mfrac>  </mrow>  <msqrt>  <mrow>  <mn> 1 </mn>  <mo> + </mo>  <mfrac>  <mn> 1 </mn>  <msup>  <mi> y </mi>  <mn> 2 </mn>  </msup>  </mfrac>  </mrow>  </msqrt>  </mfrac>  <mo> ) </mo>  </mrow>  <mi> π </mi>  </mfrac>  </mrow>  <mo> ⌋ </mo>  </mrow>  </msup>  <mo> - </mo>  <mrow>  <mn> 2 </mn>  <mo> ⁢ </mo>  <mrow>  <mo> ( </mo>  <mrow>  <mrow>  <mo> - </mo>  <mn> 1 </mn>  </mrow>  <mo> + </mo>  <msup>  <mrow>  <mo> ( </mo>  <mrow>  <mo> - </mo>  <mn> 1 </mn>  </mrow>  <mo> ) </mo>  </mrow>  <mrow>  <mo> ⌊ </mo>  <mrow>  <mfrac>  <mn> 1 </mn>  <mn> 2 </mn>  </mfrac>  <mo> - </mo>  <mfrac>  <mrow>  <mi> arg </mi>  <mo> ⁡ </mo>  <mo> ( </mo>  <mfrac>  <mrow>  <mfrac>  <msqrt>  <mrow>  <mn> 1 </mn>  <mo> - </mo>  <mfrac>  <mn> 1 </mn>  <msup>  <mi> x </mi>  <mn> 2 </mn>  </msup>  </mfrac>  </mrow>  </msqrt>  <mi> y </mi>  </mfrac>  <mo> + </mo>  <mfrac>  <mn> 1 </mn>  <mi> x </mi>  </mfrac>  </mrow>  <msqrt>  <mrow>  <mn> 1 </mn>  <mo> + </mo>  <mfrac>  <mn> 1 </mn>  <msup>  <mi> y </mi>  <mn> 2 </mn>  </msup>  </mfrac>  </mrow>  </msqrt>  </mfrac>  <mo> ) </mo>  </mrow>  <mi> π </mi>  </mfrac>  </mrow>  <mo> ⌋ </mo>  </mrow>  </msup>  </mrow>  <mo> ) </mo>  </mrow>  <mo> ⁢ </mo>  <mrow>  <mo> ⌊ </mo>  <mrow>  <mfrac>  <mn> 1 </mn>  <mn> 2 </mn>  </mfrac>  <mo> - </mo>  <mfrac>  <mrow>  <mrow>  <mi> arg </mi>  <mo> ⁡ </mo>  <mo> ( </mo>  <mrow>  <msqrt>  <mrow>  <mn> 1 </mn>  <mo> - </mo>  <mfrac>  <mn> 1 </mn>  <msup>  <mi> x </mi>  <mn> 2 </mn>  </msup>  </mfrac>  </mrow>  </msqrt>  <mo> + </mo>  <mfrac>  <mi> ⅈ </mi>  <mi> x </mi>  </mfrac>  </mrow>  <mo> ) </mo>  </mrow>  <mo> + </mo>  <mrow>  <mi> arg </mi>  <mo> ⁡ </mo>  <mo> ( </mo>  <mfrac>  <mrow>  <mi> ⅈ </mi>  <mo> - </mo>  <mfrac>  <mn> 1 </mn>  <mi> y </mi>  </mfrac>  </mrow>  <msqrt>  <mrow>  <mn> 1 </mn>  <mo> + </mo>  <mfrac>  <mn> 1 </mn>  <msup>  <mi> y </mi>  <mn> 2 </mn>  </msup>  </mfrac>  </mrow>  </msqrt>  </mfrac>  <mo> ) </mo>  </mrow>  </mrow>  <mrow>  <mn> 2 </mn>  <mo> ⁢ </mo>  <mi> π </mi>  </mrow>  </mfrac>  </mrow>  <mo> ⌋ </mo>  </mrow>  </mrow>  <mo> - </mo>  <mn> 1 </mn>  </mrow>  <mo> ) </mo>  </mrow>  </mrow>  <mo> + </mo>  <mrow>  <mfrac>  <mn> 1 </mn>  <mn> 4 </mn>  </mfrac>  <mo> ⁢ </mo>  <mi> ⅈ </mi>  <mo> ⁢ </mo>  <mrow>  <mo> ( </mo>  <mrow>  <mn> 1 </mn>  <mo> - </mo>  <msup>  <mrow>  <mo> ( </mo>  <mrow>  <mo> - </mo>  <mn> 1 </mn>  </mrow>  <mo> ) </mo>  </mrow>  <mrow>  <mo> - </mo>  <mrow>  <mo> ⌊ </mo>  <mrow>  <mo> - </mo>  <mfrac>  <mrow>  <mi> arg </mi>  <mo> ⁡ </mo>  <mo> ( </mo>  <mrow>  <mn> 1 </mn>  <mo> - </mo>  <mfrac>  <mn> 1 </mn>  <mi> x </mi>  </mfrac>  </mrow>  <mo> ) </mo>  </mrow>  <mrow>  <mn> 2 </mn>  <mo> ⁢ </mo>  <mi> π </mi>  </mrow>  </mfrac>  </mrow>  <mo> ⌋ </mo>  </mrow>  </mrow>  </msup>  </mrow>  <mo> ) </mo>  </mrow>  <mo> ⁢ </mo>  <mi> π </mi>  <mo> ⁢ </mo>  <mrow>  <mo> ( </mo>  <mrow>  <mrow>  <mn> 2 </mn>  <mo> ⁢ </mo>  <mrow>  <mo> ( </mo>  <mrow>  <mn> 1 </mn>  <mo> + </mo>  <msup>  <mrow>  <mo> ( </mo>  <mrow>  <mo> - </mo>  <mn> 1 </mn>  </mrow>  <mo> ) </mo>  </mrow>  <mrow>  <mo> ⌊ </mo>  <mrow>  <mfrac>  <mn> 1 </mn>  <mn> 2 </mn>  </mfrac>  <mo> - </mo>  <mfrac>  <mrow>  <mi> arg </mi>  <mo> ⁡ </mo>  <mo> ( </mo>  <mfrac>  <mrow>  <mfrac>  <mn> 1 </mn>  <mi> x </mi>  </mfrac>  <mo> - </mo>  <mfrac>  <msqrt>  <mrow>  <mn> 1 </mn>  <mo> - </mo>  <mfrac>  <mn> 1 </mn>  <msup>  <mi> x </mi>  <mn> 2 </mn>  </msup>  </mfrac>  </mrow>  </msqrt>  <mi> y </mi>  </mfrac>  </mrow>  <msqrt>  <mrow>  <mn> 1 </mn>  <mo> + </mo>  <mfrac>  <mn> 1 </mn>  <msup>  <mi> y </mi>  <mn> 2 </mn>  </msup>  </mfrac>  </mrow>  </msqrt>  </mfrac>  <mo> ) </mo>  </mrow>  <mi> π </mi>  </mfrac>  </mrow>  <mo> ⌋ </mo>  </mrow>  </msup>  </mrow>  <mo> ) </mo>  </mrow>  <mo> ⁢ </mo>  <mrow>  <mo> ⌊ </mo>  <mfrac>  <mrow>  <mrow>  <mi> arg </mi>  <mo> ⁡ </mo>  <mo> ( </mo>  <mrow>  <msqrt>  <mrow>  <mn> 1 </mn>  <mo> - </mo>  <mfrac>  <mn> 1 </mn>  <msup>  <mi> x </mi>  <mn> 2 </mn>  </msup>  </mfrac>  </mrow>  </msqrt>  <mo> + </mo>  <mfrac>  <mi> ⅈ </mi>  <mi> x </mi>  </mfrac>  </mrow>  <mo> ) </mo>  </mrow>  <mo> + </mo>  <mrow>  <mi> arg </mi>  <mo> ⁡ </mo>  <mo> ( </mo>  <mfrac>  <mrow>  <mi> ⅈ </mi>  <mo> + </mo>  <mfrac>  <mn> 1 </mn>  <mi> y </mi>  </mfrac>  </mrow>  <msqrt>  <mrow>  <mn> 1 </mn>  <mo> + </mo>  <mfrac>  <mn> 1 </mn>  <msup>  <mi> y </mi>  <mn> 2 </mn>  </msup>  </mfrac>  </mrow>  </msqrt>  </mfrac>  <mo> ) </mo>  </mrow>  </mrow>  <mrow>  <mn> 2 </mn>  <mo> ⁢ </mo>  <mi> π </mi>  </mrow>  </mfrac>  <mo> ⌋ </mo>  </mrow>  </mrow>  <mo> + </mo>  <msup>  <mrow>  <mo> ( </mo>  <mrow>  <mo> - </mo>  <mn> 1 </mn>  </mrow>  <mo> ) </mo>  </mrow>  <mrow>  <mo> ⌊ </mo>  <mrow>  <mfrac>  <mn> 1 </mn>  <mn> 2 </mn>  </mfrac>  <mo> - </mo>  <mfrac>  <mrow>  <mi> arg </mi>  <mo> ⁡ </mo>  <mo> ( </mo>  <mfrac>  <mrow>  <mfrac>  <mn> 1 </mn>  <mi> x </mi>  </mfrac>  <mo> - </mo>  <mfrac>  <msqrt>  <mrow>  <mn> 1 </mn>  <mo> - </mo>  <mfrac>  <mn> 1 </mn>  <msup>  <mi> x </mi>  <mn> 2 </mn>  </msup>  </mfrac>  </mrow>  </msqrt>  <mi> y </mi>  </mfrac>  </mrow>  <msqrt>  <mrow>  <mn> 1 </mn>  <mo> + </mo>  <mfrac>  <mn> 1 </mn>  <msup>  <mi> y </mi>  <mn> 2 </mn>  </msup>  </mfrac>  </mrow>  </msqrt>  </mfrac>  <mo> ) </mo>  </mrow>  <mi> π </mi>  </mfrac>  </mrow>  <mo> ⌋ </mo>  </mrow>  </msup>  <mo> - </mo>  <mrow>  <mn> 2 </mn>  <mo> ⁢ </mo>  <mrow>  <mo> ( </mo>  <mrow>  <mrow>  <mo> - </mo>  <mn> 1 </mn>  </mrow>  <mo> + </mo>  <msup>  <mrow>  <mo> ( </mo>  <mrow>  <mo> - </mo>  <mn> 1 </mn>  </mrow>  <mo> ) </mo>  </mrow>  <mrow>  <mo> ⌊ </mo>  <mrow>  <mfrac>  <mn> 1 </mn>  <mn> 2 </mn>  </mfrac>  <mo> - </mo>  <mfrac>  <mrow>  <mi> arg </mi>  <mo> ⁡ </mo>  <mo> ( </mo>  <mfrac>  <mrow>  <mfrac>  <mn> 1 </mn>  <mi> x </mi>  </mfrac>  <mo> - </mo>  <mfrac>  <msqrt>  <mrow>  <mn> 1 </mn>  <mo> - </mo>  <mfrac>  <mn> 1 </mn>  <msup>  <mi> x </mi>  <mn> 2 </mn>  </msup>  </mfrac>  </mrow>  </msqrt>  <mi> y </mi>  </mfrac>  </mrow>  <msqrt>  <mrow>  <mn> 1 </mn>  <mo> + </mo>  <mfrac>  <mn> 1 </mn>  <msup>  <mi> y </mi>  <mn> 2 </mn>  </msup>  </mfrac>  </mrow>  </msqrt>  </mfrac>  <mo> ) </mo>  </mrow>  <mi> π </mi>  </mfrac>  </mrow>  <mo> ⌋ </mo>  </mrow>  </msup>  </mrow>  <mo> ) </mo>  </mrow>  <mo> ⁢ </mo>  <mrow>  <mo> ⌊ </mo>  <mrow>  <mfrac>  <mn> 1 </mn>  <mn> 2 </mn>  </mfrac>  <mo> - </mo>  <mfrac>  <mrow>  <mrow>  <mi> arg </mi>  <mo> ⁡ </mo>  <mo> ( </mo>  <mrow>  <msqrt>  <mrow>  <mn> 1 </mn>  <mo> - </mo>  <mfrac>  <mn> 1 </mn>  <msup>  <mi> x </mi>  <mn> 2 </mn>  </msup>  </mfrac>  </mrow>  </msqrt>  <mo> + </mo>  <mfrac>  <mi> ⅈ </mi>  <mi> x </mi>  </mfrac>  </mrow>  <mo> ) </mo>  </mrow>  <mo> + </mo>  <mrow>  <mi> arg </mi>  <mo> ⁡ </mo>  <mo> ( </mo>  <mfrac>  <mrow>  <mi> ⅈ </mi>  <mo> + </mo>  <mfrac>  <mn> 1 </mn>  <mi> y </mi>  </mfrac>  </mrow>  <msqrt>  <mrow>  <mn> 1 </mn>  <mo> + </mo>  <mfrac>  <mn> 1 </mn>  <msup>  <mi> y </mi>  <mn> 2 </mn>  </msup>  </mfrac>  </mrow>  </msqrt>  </mfrac>  <mo> ) </mo>  </mrow>  </mrow>  <mrow>  <mn> 2 </mn>  <mo> ⁢ </mo>  <mi> π </mi>  </mrow>  </mfrac>  </mrow>  <mo> ⌋ </mo>  </mrow>  </mrow>  <mo> - </mo>  <mn> 1 </mn>  </mrow>  <mo> ) </mo>  </mrow>  </mrow>  <mo> - </mo>  <mfrac>  <mrow>  <mi> ⅈ </mi>  <mo> ⁢ </mo>  <mi> π </mi>  </mrow>  <mn> 2 </mn>  </mfrac>  </mrow>  </mrow>  <annotation-xml encoding='MathML-Content'>  <apply>  <eq />  <apply>  <plus />  <apply>  <arcsech />  <ci> x </ci>  </apply>  <apply>  <times />  <cn type='integer'> -1 </cn>  <apply>  <times />  <imaginaryi />  <apply>  <arccot />  <ci> y </ci>  </apply>  </apply>  </apply>  </apply>  <apply>  <plus />  <apply>  <times />  <apply>  <times />  <imaginaryi />  <apply>  <power />  <apply>  <plus />  <cn type='integer'> 1 </cn>  <apply>  <times />  <cn type='integer'> -1 </cn>  <apply>  <times />  <apply>  <power />  <cn type='integer'> -1 </cn>  <apply>  <floor />  <apply>  <plus />  <cn type='rational'> 1 <sep /> 2 </cn>  <apply>  <times />  <cn type='integer'> -1 </cn>  <apply>  <times />  <apply>  <arg />  <apply>  <times />  <apply>  <plus />  <apply>  <times />  <cn type='integer'> 1 </cn>  <apply>  <power />  <ci> x </ci>  <cn type='integer'> -1 </cn>  </apply>  </apply>  <apply>  <times />  <cn type='integer'> -1 </cn>  <apply>  <times />  <imaginaryi />  <apply>  <power />  <apply>  <plus />  <apply>  <times />  <cn type='integer'> 1 </cn>  <apply>  <power />  <ci> x </ci>  <cn type='integer'> -1 </cn>  </apply>  </apply>  <cn type='integer'> -1 </cn>  </apply>  <cn type='rational'> 1 <sep /> 2 </cn>  </apply>  <apply>  <power />  <apply>  <plus />  <cn 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