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atan(y/3)/3=Const+x^2/2 la ecuación

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Solución numérica:

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Solución

Ha introducido [src]
    /y\         
atan|-|        2
    \3/       x 
------- = c + --
   3          2 
atan(y3)3=c+x22\frac{\operatorname{atan}{\left(\frac{y}{3} \right)}}{3} = c + \frac{x^{2}}{2}
Solución detallada
Transportemos el miembro derecho de la ecuación al
miembro izquierdo de la ecuación con el signo negativo.

La ecuación se convierte de
atan(y3)3=c+x22\frac{\operatorname{atan}{\left(\frac{y}{3} \right)}}{3} = c + \frac{x^{2}}{2}
en
(cx22)+atan(y3)3=0\left(- c - \frac{x^{2}}{2}\right) + \frac{\operatorname{atan}{\left(\frac{y}{3} \right)}}{3} = 0
Abramos la expresión en la ecuación
(cx22)+atan(y3)3=0\left(- c - \frac{x^{2}}{2}\right) + \frac{\operatorname{atan}{\left(\frac{y}{3} \right)}}{3} = 0
Obtenemos la ecuación cuadrática
cx22+atan(y3)3=0- c - \frac{x^{2}}{2} + \frac{\operatorname{atan}{\left(\frac{y}{3} \right)}}{3} = 0
Es la ecuación de la forma
a*x^2 + b*x + c = 0

La ecuación cuadrática puede ser resuelta
con la ayuda del discriminante.
Las raíces de la ecuación cuadrática:
x1=Db2ax_{1} = \frac{\sqrt{D} - b}{2 a}
x2=Db2ax_{2} = \frac{- \sqrt{D} - b}{2 a}
donde D = b^2 - 4*a*c es el discriminante.
Como
a=12a = - \frac{1}{2}
b=0b = 0
c=c+atan(y3)3c = - c + \frac{\operatorname{atan}{\left(\frac{y}{3} \right)}}{3}
, entonces
D = b^2 - 4 * a * c = 

(0)^2 - 4 * (-1/2) * (-c + atan(y/3)/3) = -2*c + 2*atan(y/3)/3

La ecuación tiene dos raíces.
x1 = (-b + sqrt(D)) / (2*a)

x2 = (-b - sqrt(D)) / (2*a)

o
x1=2c+2atan(y3)3x_{1} = - \sqrt{- 2 c + \frac{2 \operatorname{atan}{\left(\frac{y}{3} \right)}}{3}}
x2=2c+2atan(y3)3x_{2} = \sqrt{- 2 c + \frac{2 \operatorname{atan}{\left(\frac{y}{3} \right)}}{3}}
Teorema de Cardano-Vieta
reescribamos la ecuación
atan(y3)3=c+x22\frac{\operatorname{atan}{\left(\frac{y}{3} \right)}}{3} = c + \frac{x^{2}}{2}
de
ax2+bx+c=0a x^{2} + b x + c = 0
como ecuación cuadrática reducida
x2+bxa+ca=0x^{2} + \frac{b x}{a} + \frac{c}{a} = 0
2c+x22atan(y3)3=02 c + x^{2} - \frac{2 \operatorname{atan}{\left(\frac{y}{3} \right)}}{3} = 0
px+q+x2=0p x + q + x^{2} = 0
donde
p=bap = \frac{b}{a}
p=0p = 0
q=caq = \frac{c}{a}
q=2c2atan(y3)3q = 2 c - \frac{2 \operatorname{atan}{\left(\frac{y}{3} \right)}}{3}
Fórmulas de Cardano-Vieta
x1+x2=px_{1} + x_{2} = - p
x1x2=qx_{1} x_{2} = q
x1+x2=0x_{1} + x_{2} = 0
x1x2=2c2atan(y3)3x_{1} x_{2} = 2 c - \frac{2 \operatorname{atan}{\left(\frac{y}{3} \right)}}{3}
Gráfica
Respuesta rápida [src]
            _____________________________________________________________    /     /                /    /y\\                  /    /y\\\\          _____________________________________________________________    /     /                /    /y\\                  /    /y\\\\
           /                            2                              2     |atan2|-18*im(c) + 6*im|atan|-||, -18*re(c) + 6*re|atan|-||||         /                            2                              2     |atan2|-18*im(c) + 6*im|atan|-||, -18*re(c) + 6*re|atan|-||||
          /  /                /    /y\\\    /                /    /y\\\      |     \                \    \3//                  \    \3///|        /  /                /    /y\\\    /                /    /y\\\      |     \                \    \3//                  \    \3///|
       4 /   |-18*im(c) + 6*im|atan|-|||  + |-18*re(c) + 6*re|atan|-|||  *cos|-----------------------------------------------------------|   I*4 /   |-18*im(c) + 6*im|atan|-|||  + |-18*re(c) + 6*re|atan|-|||  *sin|-----------------------------------------------------------|
       \/    \                \    \3///    \                \    \3///      \                             2                             /     \/    \                \    \3///    \                \    \3///      \                             2                             /
x1 = - ----------------------------------------------------------------------------------------------------------------------------------- - -------------------------------------------------------------------------------------------------------------------------------------
                                                                        3                                                                                                                                      3                                                                  
x1=i(18re(c)+6re(atan(y3)))2+(18im(c)+6im(atan(y3)))24sin(atan2(18im(c)+6im(atan(y3)),18re(c)+6re(atan(y3)))2)3(18re(c)+6re(atan(y3)))2+(18im(c)+6im(atan(y3)))24cos(atan2(18im(c)+6im(atan(y3)),18re(c)+6re(atan(y3)))2)3x_{1} = - \frac{i \sqrt[4]{\left(- 18 \operatorname{re}{\left(c\right)} + 6 \operatorname{re}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)}\right)^{2} + \left(- 18 \operatorname{im}{\left(c\right)} + 6 \operatorname{im}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)}\right)^{2}} \sin{\left(\frac{\operatorname{atan_{2}}{\left(- 18 \operatorname{im}{\left(c\right)} + 6 \operatorname{im}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)},- 18 \operatorname{re}{\left(c\right)} + 6 \operatorname{re}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)} \right)}}{2} \right)}}{3} - \frac{\sqrt[4]{\left(- 18 \operatorname{re}{\left(c\right)} + 6 \operatorname{re}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)}\right)^{2} + \left(- 18 \operatorname{im}{\left(c\right)} + 6 \operatorname{im}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)}\right)^{2}} \cos{\left(\frac{\operatorname{atan_{2}}{\left(- 18 \operatorname{im}{\left(c\right)} + 6 \operatorname{im}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)},- 18 \operatorname{re}{\left(c\right)} + 6 \operatorname{re}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)} \right)}}{2} \right)}}{3}
          _____________________________________________________________    /     /                /    /y\\                  /    /y\\\\          _____________________________________________________________    /     /                /    /y\\                  /    /y\\\\
         /                            2                              2     |atan2|-18*im(c) + 6*im|atan|-||, -18*re(c) + 6*re|atan|-||||         /                            2                              2     |atan2|-18*im(c) + 6*im|atan|-||, -18*re(c) + 6*re|atan|-||||
        /  /                /    /y\\\    /                /    /y\\\      |     \                \    \3//                  \    \3///|        /  /                /    /y\\\    /                /    /y\\\      |     \                \    \3//                  \    \3///|
     4 /   |-18*im(c) + 6*im|atan|-|||  + |-18*re(c) + 6*re|atan|-|||  *cos|-----------------------------------------------------------|   I*4 /   |-18*im(c) + 6*im|atan|-|||  + |-18*re(c) + 6*re|atan|-|||  *sin|-----------------------------------------------------------|
     \/    \                \    \3///    \                \    \3///      \                             2                             /     \/    \                \    \3///    \                \    \3///      \                             2                             /
x2 = ----------------------------------------------------------------------------------------------------------------------------------- + -------------------------------------------------------------------------------------------------------------------------------------
                                                                      3                                                                                                                                      3                                                                  
x2=i(18re(c)+6re(atan(y3)))2+(18im(c)+6im(atan(y3)))24sin(atan2(18im(c)+6im(atan(y3)),18re(c)+6re(atan(y3)))2)3+(18re(c)+6re(atan(y3)))2+(18im(c)+6im(atan(y3)))24cos(atan2(18im(c)+6im(atan(y3)),18re(c)+6re(atan(y3)))2)3x_{2} = \frac{i \sqrt[4]{\left(- 18 \operatorname{re}{\left(c\right)} + 6 \operatorname{re}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)}\right)^{2} + \left(- 18 \operatorname{im}{\left(c\right)} + 6 \operatorname{im}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)}\right)^{2}} \sin{\left(\frac{\operatorname{atan_{2}}{\left(- 18 \operatorname{im}{\left(c\right)} + 6 \operatorname{im}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)},- 18 \operatorname{re}{\left(c\right)} + 6 \operatorname{re}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)} \right)}}{2} \right)}}{3} + \frac{\sqrt[4]{\left(- 18 \operatorname{re}{\left(c\right)} + 6 \operatorname{re}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)}\right)^{2} + \left(- 18 \operatorname{im}{\left(c\right)} + 6 \operatorname{im}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)}\right)^{2}} \cos{\left(\frac{\operatorname{atan_{2}}{\left(- 18 \operatorname{im}{\left(c\right)} + 6 \operatorname{im}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)},- 18 \operatorname{re}{\left(c\right)} + 6 \operatorname{re}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)} \right)}}{2} \right)}}{3}
x2 = i*((-18*re(c) + 6*re(atan(y/3)))^2 + (-18*im(c) + 6*im(atan(y/3)))^2)^(1/4)*sin(atan2(-18*im(c) + 6*im(atan(y/3), -18*re(c) + 6*re(atan(y/3)))/2)/3 + ((-18*re(c) + 6*re(atan(y/3)))^2 + (-18*im(c) + 6*im(atan(y/3)))^2)^(1/4)*cos(atan2(-18*im(c) + 6*im(atan(y/3)), -18*re(c) + 6*re(atan(y/3)))/2)/3)
Suma y producto de raíces [src]
suma
       _____________________________________________________________    /     /                /    /y\\                  /    /y\\\\          _____________________________________________________________    /     /                /    /y\\                  /    /y\\\\        _____________________________________________________________    /     /                /    /y\\                  /    /y\\\\          _____________________________________________________________    /     /                /    /y\\                  /    /y\\\\
      /                            2                              2     |atan2|-18*im(c) + 6*im|atan|-||, -18*re(c) + 6*re|atan|-||||         /                            2                              2     |atan2|-18*im(c) + 6*im|atan|-||, -18*re(c) + 6*re|atan|-||||       /                            2                              2     |atan2|-18*im(c) + 6*im|atan|-||, -18*re(c) + 6*re|atan|-||||         /                            2                              2     |atan2|-18*im(c) + 6*im|atan|-||, -18*re(c) + 6*re|atan|-||||
     /  /                /    /y\\\    /                /    /y\\\      |     \                \    \3//                  \    \3///|        /  /                /    /y\\\    /                /    /y\\\      |     \                \    \3//                  \    \3///|      /  /                /    /y\\\    /                /    /y\\\      |     \                \    \3//                  \    \3///|        /  /                /    /y\\\    /                /    /y\\\      |     \                \    \3//                  \    \3///|
  4 /   |-18*im(c) + 6*im|atan|-|||  + |-18*re(c) + 6*re|atan|-|||  *cos|-----------------------------------------------------------|   I*4 /   |-18*im(c) + 6*im|atan|-|||  + |-18*re(c) + 6*re|atan|-|||  *sin|-----------------------------------------------------------|   4 /   |-18*im(c) + 6*im|atan|-|||  + |-18*re(c) + 6*re|atan|-|||  *cos|-----------------------------------------------------------|   I*4 /   |-18*im(c) + 6*im|atan|-|||  + |-18*re(c) + 6*re|atan|-|||  *sin|-----------------------------------------------------------|
  \/    \                \    \3///    \                \    \3///      \                             2                             /     \/    \                \    \3///    \                \    \3///      \                             2                             /   \/    \                \    \3///    \                \    \3///      \                             2                             /     \/    \                \    \3///    \                \    \3///      \                             2                             /
- ----------------------------------------------------------------------------------------------------------------------------------- - ------------------------------------------------------------------------------------------------------------------------------------- + ----------------------------------------------------------------------------------------------------------------------------------- + -------------------------------------------------------------------------------------------------------------------------------------
                                                                   3                                                                                                                                      3                                                                                                                                      3                                                                                                                                      3                                                                  
(i(18re(c)+6re(atan(y3)))2+(18im(c)+6im(atan(y3)))24sin(atan2(18im(c)+6im(atan(y3)),18re(c)+6re(atan(y3)))2)3(18re(c)+6re(atan(y3)))2+(18im(c)+6im(atan(y3)))24cos(atan2(18im(c)+6im(atan(y3)),18re(c)+6re(atan(y3)))2)3)+(i(18re(c)+6re(atan(y3)))2+(18im(c)+6im(atan(y3)))24sin(atan2(18im(c)+6im(atan(y3)),18re(c)+6re(atan(y3)))2)3+(18re(c)+6re(atan(y3)))2+(18im(c)+6im(atan(y3)))24cos(atan2(18im(c)+6im(atan(y3)),18re(c)+6re(atan(y3)))2)3)\left(- \frac{i \sqrt[4]{\left(- 18 \operatorname{re}{\left(c\right)} + 6 \operatorname{re}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)}\right)^{2} + \left(- 18 \operatorname{im}{\left(c\right)} + 6 \operatorname{im}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)}\right)^{2}} \sin{\left(\frac{\operatorname{atan_{2}}{\left(- 18 \operatorname{im}{\left(c\right)} + 6 \operatorname{im}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)},- 18 \operatorname{re}{\left(c\right)} + 6 \operatorname{re}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)} \right)}}{2} \right)}}{3} - \frac{\sqrt[4]{\left(- 18 \operatorname{re}{\left(c\right)} + 6 \operatorname{re}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)}\right)^{2} + \left(- 18 \operatorname{im}{\left(c\right)} + 6 \operatorname{im}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)}\right)^{2}} \cos{\left(\frac{\operatorname{atan_{2}}{\left(- 18 \operatorname{im}{\left(c\right)} + 6 \operatorname{im}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)},- 18 \operatorname{re}{\left(c\right)} + 6 \operatorname{re}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)} \right)}}{2} \right)}}{3}\right) + \left(\frac{i \sqrt[4]{\left(- 18 \operatorname{re}{\left(c\right)} + 6 \operatorname{re}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)}\right)^{2} + \left(- 18 \operatorname{im}{\left(c\right)} + 6 \operatorname{im}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)}\right)^{2}} \sin{\left(\frac{\operatorname{atan_{2}}{\left(- 18 \operatorname{im}{\left(c\right)} + 6 \operatorname{im}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)},- 18 \operatorname{re}{\left(c\right)} + 6 \operatorname{re}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)} \right)}}{2} \right)}}{3} + \frac{\sqrt[4]{\left(- 18 \operatorname{re}{\left(c\right)} + 6 \operatorname{re}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)}\right)^{2} + \left(- 18 \operatorname{im}{\left(c\right)} + 6 \operatorname{im}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)}\right)^{2}} \cos{\left(\frac{\operatorname{atan_{2}}{\left(- 18 \operatorname{im}{\left(c\right)} + 6 \operatorname{im}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)},- 18 \operatorname{re}{\left(c\right)} + 6 \operatorname{re}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)} \right)}}{2} \right)}}{3}\right)
=
0
00
producto
/       _____________________________________________________________    /     /                /    /y\\                  /    /y\\\\          _____________________________________________________________    /     /                /    /y\\                  /    /y\\\\\ /     _____________________________________________________________    /     /                /    /y\\                  /    /y\\\\          _____________________________________________________________    /     /                /    /y\\                  /    /y\\\\\
|      /                            2                              2     |atan2|-18*im(c) + 6*im|atan|-||, -18*re(c) + 6*re|atan|-||||         /                            2                              2     |atan2|-18*im(c) + 6*im|atan|-||, -18*re(c) + 6*re|atan|-||||| |    /                            2                              2     |atan2|-18*im(c) + 6*im|atan|-||, -18*re(c) + 6*re|atan|-||||         /                            2                              2     |atan2|-18*im(c) + 6*im|atan|-||, -18*re(c) + 6*re|atan|-|||||
|     /  /                /    /y\\\    /                /    /y\\\      |     \                \    \3//                  \    \3///|        /  /                /    /y\\\    /                /    /y\\\      |     \                \    \3//                  \    \3///|| |   /  /                /    /y\\\    /                /    /y\\\      |     \                \    \3//                  \    \3///|        /  /                /    /y\\\    /                /    /y\\\      |     \                \    \3//                  \    \3///||
|  4 /   |-18*im(c) + 6*im|atan|-|||  + |-18*re(c) + 6*re|atan|-|||  *cos|-----------------------------------------------------------|   I*4 /   |-18*im(c) + 6*im|atan|-|||  + |-18*re(c) + 6*re|atan|-|||  *sin|-----------------------------------------------------------|| |4 /   |-18*im(c) + 6*im|atan|-|||  + |-18*re(c) + 6*re|atan|-|||  *cos|-----------------------------------------------------------|   I*4 /   |-18*im(c) + 6*im|atan|-|||  + |-18*re(c) + 6*re|atan|-|||  *sin|-----------------------------------------------------------||
|  \/    \                \    \3///    \                \    \3///      \                             2                             /     \/    \                \    \3///    \                \    \3///      \                             2                             /| |\/    \                \    \3///    \                \    \3///      \                             2                             /     \/    \                \    \3///    \                \    \3///      \                             2                             /|
|- ----------------------------------------------------------------------------------------------------------------------------------- - -------------------------------------------------------------------------------------------------------------------------------------|*|----------------------------------------------------------------------------------------------------------------------------------- + -------------------------------------------------------------------------------------------------------------------------------------|
\                                                                   3                                                                                                                                      3                                                                  / \                                                                 3                                                                                                                                      3                                                                  /
(i(18re(c)+6re(atan(y3)))2+(18im(c)+6im(atan(y3)))24sin(atan2(18im(c)+6im(atan(y3)),18re(c)+6re(atan(y3)))2)3(18re(c)+6re(atan(y3)))2+(18im(c)+6im(atan(y3)))24cos(atan2(18im(c)+6im(atan(y3)),18re(c)+6re(atan(y3)))2)3)(i(18re(c)+6re(atan(y3)))2+(18im(c)+6im(atan(y3)))24sin(atan2(18im(c)+6im(atan(y3)),18re(c)+6re(atan(y3)))2)3+(18re(c)+6re(atan(y3)))2+(18im(c)+6im(atan(y3)))24cos(atan2(18im(c)+6im(atan(y3)),18re(c)+6re(atan(y3)))2)3)\left(- \frac{i \sqrt[4]{\left(- 18 \operatorname{re}{\left(c\right)} + 6 \operatorname{re}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)}\right)^{2} + \left(- 18 \operatorname{im}{\left(c\right)} + 6 \operatorname{im}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)}\right)^{2}} \sin{\left(\frac{\operatorname{atan_{2}}{\left(- 18 \operatorname{im}{\left(c\right)} + 6 \operatorname{im}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)},- 18 \operatorname{re}{\left(c\right)} + 6 \operatorname{re}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)} \right)}}{2} \right)}}{3} - \frac{\sqrt[4]{\left(- 18 \operatorname{re}{\left(c\right)} + 6 \operatorname{re}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)}\right)^{2} + \left(- 18 \operatorname{im}{\left(c\right)} + 6 \operatorname{im}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)}\right)^{2}} \cos{\left(\frac{\operatorname{atan_{2}}{\left(- 18 \operatorname{im}{\left(c\right)} + 6 \operatorname{im}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)},- 18 \operatorname{re}{\left(c\right)} + 6 \operatorname{re}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)} \right)}}{2} \right)}}{3}\right) \left(\frac{i \sqrt[4]{\left(- 18 \operatorname{re}{\left(c\right)} + 6 \operatorname{re}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)}\right)^{2} + \left(- 18 \operatorname{im}{\left(c\right)} + 6 \operatorname{im}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)}\right)^{2}} \sin{\left(\frac{\operatorname{atan_{2}}{\left(- 18 \operatorname{im}{\left(c\right)} + 6 \operatorname{im}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)},- 18 \operatorname{re}{\left(c\right)} + 6 \operatorname{re}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)} \right)}}{2} \right)}}{3} + \frac{\sqrt[4]{\left(- 18 \operatorname{re}{\left(c\right)} + 6 \operatorname{re}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)}\right)^{2} + \left(- 18 \operatorname{im}{\left(c\right)} + 6 \operatorname{im}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)}\right)^{2}} \cos{\left(\frac{\operatorname{atan_{2}}{\left(- 18 \operatorname{im}{\left(c\right)} + 6 \operatorname{im}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)},- 18 \operatorname{re}{\left(c\right)} + 6 \operatorname{re}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)} \right)}}{2} \right)}}{3}\right)
=
        _________________________________________________________         /                /    /y\\                  /    /y\\\
       /                          2                            2   I*atan2|-18*im(c) + 6*im|atan|-||, -18*re(c) + 6*re|atan|-|||
      /  /    /    /y\\          \    /    /    /y\\          \           \                \    \3//                  \    \3///
-2*  /   |- im|atan|-|| + 3*im(c)|  + |- re|atan|-|| + 3*re(c)|  *e                                                             
   \/    \    \    \3//          /    \    \    \3//          /                                                                 
--------------------------------------------------------------------------------------------------------------------------------
                                                               3                                                                
2(3re(c)re(atan(y3)))2+(3im(c)im(atan(y3)))2eiatan2(18im(c)+6im(atan(y3)),18re(c)+6re(atan(y3)))3- \frac{2 \sqrt{\left(3 \operatorname{re}{\left(c\right)} - \operatorname{re}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)}\right)^{2} + \left(3 \operatorname{im}{\left(c\right)} - \operatorname{im}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)}\right)^{2}} e^{i \operatorname{atan_{2}}{\left(- 18 \operatorname{im}{\left(c\right)} + 6 \operatorname{im}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)},- 18 \operatorname{re}{\left(c\right)} + 6 \operatorname{re}{\left(\operatorname{atan}{\left(\frac{y}{3} \right)}\right)} \right)}}}{3}
-2*sqrt((-im(atan(y/3)) + 3*im(c))^2 + (-re(atan(y/3)) + 3*re(c))^2)*exp(i*atan2(-18*im(c) + 6*im(atan(y/3)), -18*re(c) + 6*re(atan(y/3))))/3