\(\int \frac {-1+x}{(-1-2 x+x^2) \sqrt {-x+x^3}} \, dx\) [956]

Optimal result

Integrand size = 25, antiderivative size = 73 \[ \int \frac {-1+x}{\left (-1-2 x+x^2\right ) \sqrt {-x+x^3}} \, dx=\frac {1}{4} \left (-2+\sqrt {2}\right ) \text {arctanh}\left (\frac {-1+x}{\left (-1+\sqrt {2}\right ) \sqrt {-x+x^3}}\right )+\frac {1}{4} \left (2+\sqrt {2}\right ) \text {arctanh}\left (\frac {-1+x}{\left (1+\sqrt {2}\right ) \sqrt {-x+x^3}}\right ) \]

[Out]

1/4*(-2+2^(1/2))*arctanh((-1+x)/(2^(1/2)-1)/(x^3-x)^(1/2))+1/4*(2+2^(1/2))*arctanh((-1+x)/(1+2^(1/2))/(x^3-x)^
(1/2))

Rubi [C] (verified)

Result contains higher order function than in optimal. Order 4 vs. order 3 in optimal.

Time = 0.51 (sec) , antiderivative size = 103, normalized size of antiderivative = 1.41, number of steps used = 9, number of rules used = 5, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.200, Rules used = {2081, 6860, 947, 174, 551} \[ \int \frac {-1+x}{\left (-1-2 x+x^2\right ) \sqrt {-x+x^3}} \, dx=\frac {\sqrt {x} \sqrt {1-x^2} \operatorname {EllipticPi}\left (-\frac {1}{\sqrt {2}},\arcsin \left (\sqrt {1-x}\right ),\frac {1}{2}\right )}{2 \sqrt {x^3-x}}-\frac {\sqrt {x} \sqrt {1-x^2} \operatorname {EllipticPi}\left (\frac {1}{\sqrt {2}},\arcsin \left (\sqrt {1-x}\right ),\frac {1}{2}\right )}{2 \sqrt {x^3-x}} \]

[In]

Int[(-1 + x)/((-1 - 2*x + x^2)*Sqrt[-x + x^3]),x]

[Out]

(Sqrt[x]*Sqrt[1 - x^2]*EllipticPi[-(1/Sqrt[2]), ArcSin[Sqrt[1 - x]], 1/2])/(2*Sqrt[-x + x^3]) - (Sqrt[x]*Sqrt[
1 - x^2]*EllipticPi[1/Sqrt[2], ArcSin[Sqrt[1 - x]], 1/2])/(2*Sqrt[-x + x^3])

Rule 174

Int[1/(((a_.) + (b_.)*(x_))*Sqrt[(c_.) + (d_.)*(x_)]*Sqrt[(e_.) + (f_.)*(x_)]*Sqrt[(g_.) + (h_.)*(x_)]), x_Sym
bol] :> Dist[-2, Subst[Int[1/(Simp[b*c - a*d - b*x^2, x]*Sqrt[Simp[(d*e - c*f)/d + f*(x^2/d), x]]*Sqrt[Simp[(d
*g - c*h)/d + h*(x^2/d), x]]), x], x, Sqrt[c + d*x]], x] /; FreeQ[{a, b, c, d, e, f, g, h}, x] && GtQ[(d*e - c
*f)/d, 0]

Rule 551

Int[1/(((a_) + (b_.)*(x_)^2)*Sqrt[(c_) + (d_.)*(x_)^2]*Sqrt[(e_) + (f_.)*(x_)^2]), x_Symbol] :> Simp[(1/(a*Sqr
t[c]*Sqrt[e]*Rt[-d/c, 2]))*EllipticPi[b*(c/(a*d)), ArcSin[Rt[-d/c, 2]*x], c*(f/(d*e))], x] /; FreeQ[{a, b, c,
d, e, f}, x] &&  !GtQ[d/c, 0] && GtQ[c, 0] && GtQ[e, 0] &&  !( !GtQ[f/e, 0] && SimplerSqrtQ[-f/e, -d/c])

Rule 947

Int[1/(((d_.) + (e_.)*(x_))*Sqrt[(f_.) + (g_.)*(x_)]*Sqrt[(a_) + (c_.)*(x_)^2]), x_Symbol] :> With[{q = Rt[-c/
a, 2]}, Dist[Sqrt[1 + c*(x^2/a)]/Sqrt[a + c*x^2], Int[1/((d + e*x)*Sqrt[f + g*x]*Sqrt[1 - q*x]*Sqrt[1 + q*x]),
x], x]] /; FreeQ[{a, c, d, e, f, g}, x] && NeQ[e*f - d*g, 0] && NeQ[c*d^2 + a*e^2, 0] &&  !GtQ[a, 0]

Rule 2081

Int[(u_.)*(P_)^(p_.), x_Symbol] :> With[{m = MinimumMonomialExponent[P, x]}, Dist[P^FracPart[p]/(x^(m*FracPart
[p])*Distrib[1/x^m, P]^FracPart[p]), Int[u*x^(m*p)*Distrib[1/x^m, P]^p, x], x]] /; FreeQ[p, x] &&  !IntegerQ[p
] && SumQ[P] && EveryQ[BinomialQ[#1, x] & , P] &&  !PolyQ[P, x, 2]

Rule 6860

Int[(u_)/((a_.) + (b_.)*(x_)^(n_.) + (c_.)*(x_)^(n2_.)), x_Symbol] :> With[{v = RationalFunctionExpand[u/(a +
b*x^n + c*x^(2*n)), x]}, Int[v, x] /; SumQ[v]] /; FreeQ[{a, b, c}, x] && EqQ[n2, 2*n] && IGtQ[n, 0]

Rubi steps \begin{align*} \text {integral}& = \frac {\left (\sqrt {x} \sqrt {-1+x^2}\right ) \int \frac {-1+x}{\sqrt {x} \sqrt {-1+x^2} \left (-1-2 x+x^2\right )} \, dx}{\sqrt {-x+x^3}} \\ & = \frac {\left (\sqrt {x} \sqrt {-1+x^2}\right ) \int \left (\frac {1}{\sqrt {x} \left (-2-2 \sqrt {2}+2 x\right ) \sqrt {-1+x^2}}+\frac {1}{\sqrt {x} \left (-2+2 \sqrt {2}+2 x\right ) \sqrt {-1+x^2}}\right ) \, dx}{\sqrt {-x+x^3}} \\ & = \frac {\left (\sqrt {x} \sqrt {-1+x^2}\right ) \int \frac {1}{\sqrt {x} \left (-2-2 \sqrt {2}+2 x\right ) \sqrt {-1+x^2}} \, dx}{\sqrt {-x+x^3}}+\frac {\left (\sqrt {x} \sqrt {-1+x^2}\right ) \int \frac {1}{\sqrt {x} \left (-2+2 \sqrt {2}+2 x\right ) \sqrt {-1+x^2}} \, dx}{\sqrt {-x+x^3}} \\ & = \frac {\left (\sqrt {x} \sqrt {1-x^2}\right ) \int \frac {1}{\sqrt {1-x} \sqrt {x} \sqrt {1+x} \left (-2-2 \sqrt {2}+2 x\right )} \, dx}{\sqrt {-x+x^3}}+\frac {\left (\sqrt {x} \sqrt {1-x^2}\right ) \int \frac {1}{\sqrt {1-x} \sqrt {x} \sqrt {1+x} \left (-2+2 \sqrt {2}+2 x\right )} \, dx}{\sqrt {-x+x^3}} \\ & = -\frac {\left (2 \sqrt {x} \sqrt {1-x^2}\right ) \text {Subst}\left (\int \frac {1}{\left (-2 \sqrt {2}-2 x^2\right ) \sqrt {1-x^2} \sqrt {2-x^2}} \, dx,x,\sqrt {1-x}\right )}{\sqrt {-x+x^3}}-\frac {\left (2 \sqrt {x} \sqrt {1-x^2}\right ) \text {Subst}\left (\int \frac {1}{\left (2 \sqrt {2}-2 x^2\right ) \sqrt {1-x^2} \sqrt {2-x^2}} \, dx,x,\sqrt {1-x}\right )}{\sqrt {-x+x^3}} \\ & = \frac {\sqrt {x} \sqrt {1-x^2} \operatorname {EllipticPi}\left (-\frac {1}{\sqrt {2}},\arcsin \left (\sqrt {1-x}\right ),\frac {1}{2}\right )}{2 \sqrt {-x+x^3}}-\frac {\sqrt {x} \sqrt {1-x^2} \operatorname {EllipticPi}\left (\frac {1}{\sqrt {2}},\arcsin \left (\sqrt {1-x}\right ),\frac {1}{2}\right )}{2 \sqrt {-x+x^3}} \\ \end{align*}

Mathematica [A] (verified)

Time = 10.97 (sec) , antiderivative size = 67, normalized size of antiderivative = 0.92 \[ \int \frac {-1+x}{\left (-1-2 x+x^2\right ) \sqrt {-x+x^3}} \, dx=\frac {1}{4} \left (\left (2+\sqrt {2}\right ) \text {arctanh}\left (\frac {\left (-1+\sqrt {2}\right ) (-1+x)}{\sqrt {x \left (-1+x^2\right )}}\right )+\left (-2+\sqrt {2}\right ) \text {arctanh}\left (\frac {\left (1+\sqrt {2}\right ) (-1+x)}{\sqrt {x \left (-1+x^2\right )}}\right )\right ) \]

[In]

Integrate[(-1 + x)/((-1 - 2*x + x^2)*Sqrt[-x + x^3]),x]

[Out]

((2 + Sqrt[2])*ArcTanh[((-1 + Sqrt[2])*(-1 + x))/Sqrt[x*(-1 + x^2)]] + (-2 + Sqrt[2])*ArcTanh[((1 + Sqrt[2])*(
-1 + x))/Sqrt[x*(-1 + x^2)]])/4

Maple [C] (verified)

Result contains higher order function than in optimal. Order 4 vs. order 3.

Time = 2.35 (sec) , antiderivative size = 116, normalized size of antiderivative = 1.59

method	result	size
elliptic	\(\frac {\sqrt {1+x}\, \sqrt {2-2 x}\, \sqrt {-x}\, \operatorname {EllipticPi}\left (\sqrt {1+x}, -\frac {1}{-2-\sqrt {2}}, \frac {\sqrt {2}}{2}\right )}{2 \sqrt {x^{3}-x}\, \left (-2-\sqrt {2}\right )}+\frac {\sqrt {1+x}\, \sqrt {2-2 x}\, \sqrt {-x}\, \operatorname {EllipticPi}\left (\sqrt {1+x}, -\frac {1}{-2+\sqrt {2}}, \frac {\sqrt {2}}{2}\right )}{2 \sqrt {x^{3}-x}\, \left (-2+\sqrt {2}\right )}\)	\(116\)
default	\(-\frac {\ln \left (\frac {278808 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right )^{2} x^{2}-1394040 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right )^{2} x -493895 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right ) x^{2}+1672848 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right )^{2}+1038514 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right ) \sqrt {x^{3}-x}-74648 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right ) x +66352 x^{2}-419247 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right )-152085 \sqrt {x^{3}-x}+40832 x +25520}{{\left (4 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right ) x -8 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right )-x +1\right )}^{2}}\right ) \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right )}{2}+\frac {\ln \left (\frac {278808 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right )^{2} x^{2}-1394040 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right )^{2} x -493895 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right ) x^{2}+1672848 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right )^{2}+1038514 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right ) \sqrt {x^{3}-x}-74648 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right ) x +66352 x^{2}-419247 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right )-152085 \sqrt {x^{3}-x}+40832 x +25520}{{\left (4 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right ) x -8 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right )-x +1\right )}^{2}}\right )}{2}+\frac {\operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right ) \ln \left (\frac {278808 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right )^{2} x^{2}-1394040 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right )^{2} x -63721 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right ) x^{2}+1672848 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right )^{2}-1038514 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right ) \sqrt {x^{3}-x}+2862728 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right ) x -148735 x^{2}-2926449 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right )+886429 \sqrt {x^{3}-x}-1427856 x +1279121}{{\left (4 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right ) x -8 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right )-3 x +7\right )}^{2}}\right )}{2}\)	\(543\)
trager	\(-\frac {\ln \left (\frac {278808 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right )^{2} x^{2}-1394040 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right )^{2} x -493895 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right ) x^{2}+1672848 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right )^{2}+1038514 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right ) \sqrt {x^{3}-x}-74648 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right ) x +66352 x^{2}-419247 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right )-152085 \sqrt {x^{3}-x}+40832 x +25520}{{\left (4 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right ) x -8 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right )-x +1\right )}^{2}}\right ) \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right )}{2}+\frac {\ln \left (\frac {278808 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right )^{2} x^{2}-1394040 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right )^{2} x -493895 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right ) x^{2}+1672848 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right )^{2}+1038514 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right ) \sqrt {x^{3}-x}-74648 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right ) x +66352 x^{2}-419247 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right )-152085 \sqrt {x^{3}-x}+40832 x +25520}{{\left (4 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right ) x -8 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right )-x +1\right )}^{2}}\right )}{2}+\frac {\operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right ) \ln \left (\frac {278808 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right )^{2} x^{2}-1394040 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right )^{2} x -63721 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right ) x^{2}+1672848 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right )^{2}-1038514 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right ) \sqrt {x^{3}-x}+2862728 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right ) x -148735 x^{2}-2926449 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right )+886429 \sqrt {x^{3}-x}-1427856 x +1279121}{{\left (4 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right ) x -8 \operatorname {RootOf}\left (8 \textit {\_Z}^{2}-8 \textit {\_Z} +1\right )-3 x +7\right )}^{2}}\right )}{2}\)	\(543\)

[In]

int((x-1)/(x^2-2*x-1)/(x^3-x)^(1/2),x,method=_RETURNVERBOSE)

[Out]

1/2*(1+x)^(1/2)*(2-2*x)^(1/2)*(-x)^(1/2)/(x^3-x)^(1/2)/(-2-2^(1/2))*EllipticPi((1+x)^(1/2),-1/(-2-2^(1/2)),1/2
*2^(1/2))+1/2*(1+x)^(1/2)*(2-2*x)^(1/2)*(-x)^(1/2)/(x^3-x)^(1/2)/(-2+2^(1/2))*EllipticPi((1+x)^(1/2),-1/(-2+2^
(1/2)),1/2*2^(1/2))

Fricas [B] (verification not implemented)

Leaf count of result is larger than twice the leaf count of optimal. 126 vs. \(2 (57) = 114\).

Time = 0.30 (sec) , antiderivative size = 126, normalized size of antiderivative = 1.73 \[ \int \frac {-1+x}{\left (-1-2 x+x^2\right ) \sqrt {-x+x^3}} \, dx=\frac {1}{8} \, \sqrt {2} \log \left (\frac {x^{4} + 12 \, x^{3} + 4 \, \sqrt {2} \sqrt {x^{3} - x} {\left (x^{2} + 2 \, x - 1\right )} + 2 \, x^{2} - 12 \, x + 1}{x^{4} - 4 \, x^{3} + 2 \, x^{2} + 4 \, x + 1}\right ) + \frac {1}{4} \, \log \left (\frac {x^{4} + 4 \, x^{3} + 2 \, x^{2} - 4 \, \sqrt {x^{3} - x} {\left (x^{2} + 1\right )} - 4 \, x + 1}{x^{4} - 4 \, x^{3} + 2 \, x^{2} + 4 \, x + 1}\right ) \]

[In]

integrate((-1+x)/(x^2-2*x-1)/(x^3-x)^(1/2),x, algorithm="fricas")

[Out]

1/8*sqrt(2)*log((x^4 + 12*x^3 + 4*sqrt(2)*sqrt(x^3 - x)*(x^2 + 2*x - 1) + 2*x^2 - 12*x + 1)/(x^4 - 4*x^3 + 2*x
^2 + 4*x + 1)) + 1/4*log((x^4 + 4*x^3 + 2*x^2 - 4*sqrt(x^3 - x)*(x^2 + 1) - 4*x + 1)/(x^4 - 4*x^3 + 2*x^2 + 4*
x + 1))

Sympy [F]

\[ \int \frac {-1+x}{\left (-1-2 x+x^2\right ) \sqrt {-x+x^3}} \, dx=\int \frac {x - 1}{\sqrt {x \left (x - 1\right ) \left (x + 1\right )} \left (x^{2} - 2 x - 1\right )}\, dx \]

[In]

integrate((-1+x)/(x**2-2*x-1)/(x**3-x)**(1/2),x)

[Out]

Integral((x - 1)/(sqrt(x*(x - 1)*(x + 1))*(x**2 - 2*x - 1)), x)

Maxima [F]

\[ \int \frac {-1+x}{\left (-1-2 x+x^2\right ) \sqrt {-x+x^3}} \, dx=\int { \frac {x - 1}{\sqrt {x^{3} - x} {\left (x^{2} - 2 \, x - 1\right )}} \,d x } \]

[In]

integrate((-1+x)/(x^2-2*x-1)/(x^3-x)^(1/2),x, algorithm="maxima")

[Out]

integrate((x - 1)/(sqrt(x^3 - x)*(x^2 - 2*x - 1)), x)

Giac [F]

\[ \int \frac {-1+x}{\left (-1-2 x+x^2\right ) \sqrt {-x+x^3}} \, dx=\int { \frac {x - 1}{\sqrt {x^{3} - x} {\left (x^{2} - 2 \, x - 1\right )}} \,d x } \]

[In]

integrate((-1+x)/(x^2-2*x-1)/(x^3-x)^(1/2),x, algorithm="giac")

[Out]

integrate((x - 1)/(sqrt(x^3 - x)*(x^2 - 2*x - 1)), x)

Mupad [B] (verification not implemented)

Time = 6.33 (sec) , antiderivative size = 102, normalized size of antiderivative = 1.40 \[ \int \frac {-1+x}{\left (-1-2 x+x^2\right ) \sqrt {-x+x^3}} \, dx=\frac {\sqrt {-x}\,\sqrt {1-x}\,\sqrt {x+1}\,\Pi \left (-\frac {1}{\sqrt {2}+1};\mathrm {asin}\left (\sqrt {-x}\right )\middle |-1\right )}{\sqrt {x^3-x}\,\left (\sqrt {2}+1\right )}-\frac {\sqrt {-x}\,\sqrt {1-x}\,\sqrt {x+1}\,\Pi \left (\frac {1}{\sqrt {2}-1};\mathrm {asin}\left (\sqrt {-x}\right )\middle |-1\right )}{\sqrt {x^3-x}\,\left (\sqrt {2}-1\right )} \]

[In]

int(-(x - 1)/((x^3 - x)^(1/2)*(2*x - x^2 + 1)),x)

[Out]

((-x)^(1/2)*(1 - x)^(1/2)*(x + 1)^(1/2)*ellipticPi(-1/(2^(1/2) + 1), asin((-x)^(1/2)), -1))/((x^3 - x)^(1/2)*(
2^(1/2) + 1)) - ((-x)^(1/2)*(1 - x)^(1/2)*(x + 1)^(1/2)*ellipticPi(1/(2^(1/2) - 1), asin((-x)^(1/2)), -1))/((x
^3 - x)^(1/2)*(2^(1/2) - 1))