Integrand size = 18, antiderivative size = 103 \[ \int \frac {\left (-1+x^3\right )^{2/3} \left (1+x^3\right )}{x^3} \, dx=\frac {\left (-1+x^3\right )^{2/3} \left (-3+2 x^3\right )}{6 x^2}+\frac {\arctan \left (\frac {\sqrt {3} x}{x+2 \sqrt [3]{-1+x^3}}\right )}{3 \sqrt {3}}-\frac {1}{9} \log \left (-x+\sqrt [3]{-1+x^3}\right )+\frac {1}{18} \log \left (x^2+x \sqrt [3]{-1+x^3}+\left (-1+x^3\right )^{2/3}\right ) \]
1/6*(x^3-1)^(2/3)*(2*x^3-3)/x^2+1/9*arctan(3^(1/2)*x/(x+2*(x^3-1)^(1/3)))* 3^(1/2)-1/9*ln(-x+(x^3-1)^(1/3))+1/18*ln(x^2+x*(x^3-1)^(1/3)+(x^3-1)^(2/3) )
Time = 0.21 (sec) , antiderivative size = 97, normalized size of antiderivative = 0.94 \[ \int \frac {\left (-1+x^3\right )^{2/3} \left (1+x^3\right )}{x^3} \, dx=\frac {1}{18} \left (\frac {3 \left (-1+x^3\right )^{2/3} \left (-3+2 x^3\right )}{x^2}+2 \sqrt {3} \arctan \left (\frac {\sqrt {3} x}{x+2 \sqrt [3]{-1+x^3}}\right )-2 \log \left (-x+\sqrt [3]{-1+x^3}\right )+\log \left (x^2+x \sqrt [3]{-1+x^3}+\left (-1+x^3\right )^{2/3}\right )\right ) \]
((3*(-1 + x^3)^(2/3)*(-3 + 2*x^3))/x^2 + 2*Sqrt[3]*ArcTan[(Sqrt[3]*x)/(x + 2*(-1 + x^3)^(1/3))] - 2*Log[-x + (-1 + x^3)^(1/3)] + Log[x^2 + x*(-1 + x ^3)^(1/3) + (-1 + x^3)^(2/3)])/18
Time = 0.19 (sec) , antiderivative size = 86, normalized size of antiderivative = 0.83, number of steps used = 3, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.167, Rules used = {955, 748, 769}
Below are the steps used by Rubi to obtain the solution. The rule number used for the transformation is given above next to the arrow. The rules definitions used are listed below.
\(\displaystyle \int \frac {\left (x^3-1\right )^{2/3} \left (x^3+1\right )}{x^3} \, dx\) |
\(\Big \downarrow \) 955 |
\(\displaystyle \frac {\left (x^3-1\right )^{5/3}}{2 x^2}-\frac {1}{2} \int \left (x^3-1\right )^{2/3}dx\) |
\(\Big \downarrow \) 748 |
\(\displaystyle \frac {1}{2} \left (\frac {2}{3} \int \frac {1}{\sqrt [3]{x^3-1}}dx-\frac {1}{3} x \left (x^3-1\right )^{2/3}\right )+\frac {\left (x^3-1\right )^{5/3}}{2 x^2}\) |
\(\Big \downarrow \) 769 |
\(\displaystyle \frac {1}{2} \left (\frac {2}{3} \left (\frac {\arctan \left (\frac {\frac {2 x}{\sqrt [3]{x^3-1}}+1}{\sqrt {3}}\right )}{\sqrt {3}}-\frac {1}{2} \log \left (\sqrt [3]{x^3-1}-x\right )\right )-\frac {1}{3} x \left (x^3-1\right )^{2/3}\right )+\frac {\left (x^3-1\right )^{5/3}}{2 x^2}\) |
(-1 + x^3)^(5/3)/(2*x^2) + (-1/3*(x*(-1 + x^3)^(2/3)) + (2*(ArcTan[(1 + (2 *x)/(-1 + x^3)^(1/3))/Sqrt[3]]/Sqrt[3] - Log[-x + (-1 + x^3)^(1/3)]/2))/3) /2
3.15.61.3.1 Defintions of rubi rules used
Int[((a_) + (b_.)*(x_)^(n_))^(p_), x_Symbol] :> Simp[x*((a + b*x^n)^p/(n*p + 1)), x] + Simp[a*n*(p/(n*p + 1)) Int[(a + b*x^n)^(p - 1), x], x] /; Fre eQ[{a, b}, x] && IGtQ[n, 0] && GtQ[p, 0] && (IntegerQ[2*p] || LtQ[Denominat or[p + 1/n], Denominator[p]])
Int[((a_) + (b_.)*(x_)^3)^(-1/3), x_Symbol] :> Simp[ArcTan[(1 + 2*Rt[b, 3]* (x/(a + b*x^3)^(1/3)))/Sqrt[3]]/(Sqrt[3]*Rt[b, 3]), x] - Simp[Log[(a + b*x^ 3)^(1/3) - Rt[b, 3]*x]/(2*Rt[b, 3]), x] /; FreeQ[{a, b}, x]
Int[((e_.)*(x_))^(m_.)*((a_) + (b_.)*(x_)^(n_))^(p_.)*((c_) + (d_.)*(x_)^(n _)), x_Symbol] :> Simp[c*(e*x)^(m + 1)*((a + b*x^n)^(p + 1)/(a*e*(m + 1))), x] + Simp[(a*d*(m + 1) - b*c*(m + n*(p + 1) + 1))/(a*e^n*(m + 1)) Int[(e *x)^(m + n)*(a + b*x^n)^p, x], x] /; FreeQ[{a, b, c, d, e, p}, x] && NeQ[b* c - a*d, 0] && (IntegerQ[n] || GtQ[e, 0]) && ((GtQ[n, 0] && LtQ[m, -1]) || (LtQ[n, 0] && GtQ[m + n, -1])) && !ILtQ[p, -1]
Result contains higher order function than in optimal. Order 9 vs. order 3.
Time = 1.54 (sec) , antiderivative size = 56, normalized size of antiderivative = 0.54
method | result | size |
risch | \(\frac {2 x^{6}-5 x^{3}+3}{6 x^{2} \left (x^{3}-1\right )^{\frac {1}{3}}}+\frac {{\left (-\operatorname {signum}\left (x^{3}-1\right )\right )}^{\frac {1}{3}} x \operatorname {hypergeom}\left (\left [\frac {1}{3}, \frac {1}{3}\right ], \left [\frac {4}{3}\right ], x^{3}\right )}{3 \operatorname {signum}\left (x^{3}-1\right )^{\frac {1}{3}}}\) | \(56\) |
meijerg | \(\frac {\operatorname {signum}\left (x^{3}-1\right )^{\frac {2}{3}} x \operatorname {hypergeom}\left (\left [-\frac {2}{3}, \frac {1}{3}\right ], \left [\frac {4}{3}\right ], x^{3}\right )}{{\left (-\operatorname {signum}\left (x^{3}-1\right )\right )}^{\frac {2}{3}}}-\frac {\operatorname {signum}\left (x^{3}-1\right )^{\frac {2}{3}} \operatorname {hypergeom}\left (\left [-\frac {2}{3}, -\frac {2}{3}\right ], \left [\frac {1}{3}\right ], x^{3}\right )}{2 {\left (-\operatorname {signum}\left (x^{3}-1\right )\right )}^{\frac {2}{3}} x^{2}}\) | \(63\) |
pseudoelliptic | \(\frac {6 x^{3} \left (x^{3}-1\right )^{\frac {2}{3}}-2 \sqrt {3}\, \arctan \left (\frac {\sqrt {3}\, \left (x +2 \left (x^{3}-1\right )^{\frac {1}{3}}\right )}{3 x}\right ) x^{2}-2 \ln \left (\frac {-x +\left (x^{3}-1\right )^{\frac {1}{3}}}{x}\right ) x^{2}+\ln \left (\frac {x^{2}+x \left (x^{3}-1\right )^{\frac {1}{3}}+\left (x^{3}-1\right )^{\frac {2}{3}}}{x^{2}}\right ) x^{2}-9 \left (x^{3}-1\right )^{\frac {2}{3}}}{18 \left (\left (x^{3}-1\right )^{\frac {2}{3}}+x \left (x +\left (x^{3}-1\right )^{\frac {1}{3}}\right )\right ) x^{2} \left (x -\left (x^{3}-1\right )^{\frac {1}{3}}\right )}\) | \(140\) |
trager | \(\frac {\left (x^{3}-1\right )^{\frac {2}{3}} \left (2 x^{3}-3\right )}{6 x^{2}}+\frac {4 \operatorname {RootOf}\left (16 \textit {\_Z}^{2}-4 \textit {\_Z} +1\right ) \ln \left (182271728 \operatorname {RootOf}\left (16 \textit {\_Z}^{2}-4 \textit {\_Z} +1\right )^{2} x^{3}+775851456 \operatorname {RootOf}\left (16 \textit {\_Z}^{2}-4 \textit {\_Z} +1\right ) \left (x^{3}-1\right )^{\frac {2}{3}} x +775851456 \operatorname {RootOf}\left (16 \textit {\_Z}^{2}-4 \textit {\_Z} +1\right ) \left (x^{3}-1\right )^{\frac {1}{3}} x^{2}+730283524 \operatorname {RootOf}\left (16 \textit {\_Z}^{2}-4 \textit {\_Z} +1\right ) x^{3}-1508552373 x \left (x^{3}-1\right )^{\frac {2}{3}}-1508552373 x^{2} \left (x^{3}-1\right )^{\frac {1}{3}}-1497160390 x^{3}-1458173824 \operatorname {RootOf}\left (16 \textit {\_Z}^{2}-4 \textit {\_Z} +1\right )^{2}+1858712316 \operatorname {RootOf}\left (16 \textit {\_Z}^{2}-4 \textit {\_Z} +1\right )+476369215\right )}{9}+\frac {\ln \left (182271728 \operatorname {RootOf}\left (16 \textit {\_Z}^{2}-4 \textit {\_Z} +1\right )^{2} x^{3}-775851456 \operatorname {RootOf}\left (16 \textit {\_Z}^{2}-4 \textit {\_Z} +1\right ) \left (x^{3}-1\right )^{\frac {2}{3}} x -775851456 \operatorname {RootOf}\left (16 \textit {\_Z}^{2}-4 \textit {\_Z} +1\right ) \left (x^{3}-1\right )^{\frac {1}{3}} x^{2}-821419388 \operatorname {RootOf}\left (16 \textit {\_Z}^{2}-4 \textit {\_Z} +1\right ) x^{3}-1314589509 x \left (x^{3}-1\right )^{\frac {2}{3}}-1314589509 x^{2} \left (x^{3}-1\right )^{\frac {1}{3}}-1303197526 x^{3}-1458173824 \operatorname {RootOf}\left (16 \textit {\_Z}^{2}-4 \textit {\_Z} +1\right )^{2}-1129625404 \operatorname {RootOf}\left (16 \textit {\_Z}^{2}-4 \textit {\_Z} +1\right )+849911430\right )}{9}-\frac {4 \ln \left (182271728 \operatorname {RootOf}\left (16 \textit {\_Z}^{2}-4 \textit {\_Z} +1\right )^{2} x^{3}-775851456 \operatorname {RootOf}\left (16 \textit {\_Z}^{2}-4 \textit {\_Z} +1\right ) \left (x^{3}-1\right )^{\frac {2}{3}} x -775851456 \operatorname {RootOf}\left (16 \textit {\_Z}^{2}-4 \textit {\_Z} +1\right ) \left (x^{3}-1\right )^{\frac {1}{3}} x^{2}-821419388 \operatorname {RootOf}\left (16 \textit {\_Z}^{2}-4 \textit {\_Z} +1\right ) x^{3}-1314589509 x \left (x^{3}-1\right )^{\frac {2}{3}}-1314589509 x^{2} \left (x^{3}-1\right )^{\frac {1}{3}}-1303197526 x^{3}-1458173824 \operatorname {RootOf}\left (16 \textit {\_Z}^{2}-4 \textit {\_Z} +1\right )^{2}-1129625404 \operatorname {RootOf}\left (16 \textit {\_Z}^{2}-4 \textit {\_Z} +1\right )+849911430\right ) \operatorname {RootOf}\left (16 \textit {\_Z}^{2}-4 \textit {\_Z} +1\right )}{9}\) | \(457\) |
1/6*(2*x^6-5*x^3+3)/x^2/(x^3-1)^(1/3)+1/3/signum(x^3-1)^(1/3)*(-signum(x^3 -1))^(1/3)*x*hypergeom([1/3,1/3],[4/3],x^3)
Time = 0.51 (sec) , antiderivative size = 112, normalized size of antiderivative = 1.09 \[ \int \frac {\left (-1+x^3\right )^{2/3} \left (1+x^3\right )}{x^3} \, dx=\frac {2 \, \sqrt {3} x^{2} \arctan \left (-\frac {25382 \, \sqrt {3} {\left (x^{3} - 1\right )}^{\frac {1}{3}} x^{2} - 13720 \, \sqrt {3} {\left (x^{3} - 1\right )}^{\frac {2}{3}} x + \sqrt {3} {\left (5831 \, x^{3} - 7200\right )}}{58653 \, x^{3} - 8000}\right ) - x^{2} \log \left (-3 \, {\left (x^{3} - 1\right )}^{\frac {1}{3}} x^{2} + 3 \, {\left (x^{3} - 1\right )}^{\frac {2}{3}} x + 1\right ) + 3 \, {\left (2 \, x^{3} - 3\right )} {\left (x^{3} - 1\right )}^{\frac {2}{3}}}{18 \, x^{2}} \]
1/18*(2*sqrt(3)*x^2*arctan(-(25382*sqrt(3)*(x^3 - 1)^(1/3)*x^2 - 13720*sqr t(3)*(x^3 - 1)^(2/3)*x + sqrt(3)*(5831*x^3 - 7200))/(58653*x^3 - 8000)) - x^2*log(-3*(x^3 - 1)^(1/3)*x^2 + 3*(x^3 - 1)^(2/3)*x + 1) + 3*(2*x^3 - 3)* (x^3 - 1)^(2/3))/x^2
Result contains complex when optimal does not.
Time = 1.52 (sec) , antiderivative size = 70, normalized size of antiderivative = 0.68 \[ \int \frac {\left (-1+x^3\right )^{2/3} \left (1+x^3\right )}{x^3} \, dx=- \frac {x e^{- \frac {i \pi }{3}} \Gamma \left (\frac {1}{3}\right ) {{}_{2}F_{1}\left (\begin {matrix} - \frac {2}{3}, \frac {1}{3} \\ \frac {4}{3} \end {matrix}\middle | {x^{3}} \right )}}{3 \Gamma \left (\frac {4}{3}\right )} + \frac {e^{\frac {2 i \pi }{3}} \Gamma \left (- \frac {2}{3}\right ) {{}_{2}F_{1}\left (\begin {matrix} - \frac {2}{3}, - \frac {2}{3} \\ \frac {1}{3} \end {matrix}\middle | {x^{3}} \right )}}{3 x^{2} \Gamma \left (\frac {1}{3}\right )} \]
-x*exp(-I*pi/3)*gamma(1/3)*hyper((-2/3, 1/3), (4/3,), x**3)/(3*gamma(4/3)) + exp(2*I*pi/3)*gamma(-2/3)*hyper((-2/3, -2/3), (1/3,), x**3)/(3*x**2*gam ma(1/3))
Time = 0.28 (sec) , antiderivative size = 106, normalized size of antiderivative = 1.03 \[ \int \frac {\left (-1+x^3\right )^{2/3} \left (1+x^3\right )}{x^3} \, dx=-\frac {1}{9} \, \sqrt {3} \arctan \left (\frac {1}{3} \, \sqrt {3} {\left (\frac {2 \, {\left (x^{3} - 1\right )}^{\frac {1}{3}}}{x} + 1\right )}\right ) - \frac {{\left (x^{3} - 1\right )}^{\frac {2}{3}}}{2 \, x^{2}} - \frac {{\left (x^{3} - 1\right )}^{\frac {2}{3}}}{3 \, x^{2} {\left (\frac {x^{3} - 1}{x^{3}} - 1\right )}} + \frac {1}{18} \, \log \left (\frac {{\left (x^{3} - 1\right )}^{\frac {1}{3}}}{x} + \frac {{\left (x^{3} - 1\right )}^{\frac {2}{3}}}{x^{2}} + 1\right ) - \frac {1}{9} \, \log \left (\frac {{\left (x^{3} - 1\right )}^{\frac {1}{3}}}{x} - 1\right ) \]
-1/9*sqrt(3)*arctan(1/3*sqrt(3)*(2*(x^3 - 1)^(1/3)/x + 1)) - 1/2*(x^3 - 1) ^(2/3)/x^2 - 1/3*(x^3 - 1)^(2/3)/(x^2*((x^3 - 1)/x^3 - 1)) + 1/18*log((x^3 - 1)^(1/3)/x + (x^3 - 1)^(2/3)/x^2 + 1) - 1/9*log((x^3 - 1)^(1/3)/x - 1)
\[ \int \frac {\left (-1+x^3\right )^{2/3} \left (1+x^3\right )}{x^3} \, dx=\int { \frac {{\left (x^{3} + 1\right )} {\left (x^{3} - 1\right )}^{\frac {2}{3}}}{x^{3}} \,d x } \]
Timed out. \[ \int \frac {\left (-1+x^3\right )^{2/3} \left (1+x^3\right )}{x^3} \, dx=\int \frac {{\left (x^3-1\right )}^{2/3}\,\left (x^3+1\right )}{x^3} \,d x \]