Integrand size = 20, antiderivative size = 102 \[ \int \frac {1}{\sqrt [3]{1+x} \sqrt [3]{1-x+x^2}} \, dx=\frac {\sqrt [3]{1+x^3} \arctan \left (\frac {1+\frac {2 x}{\sqrt [3]{1+x^3}}}{\sqrt {3}}\right )}{\sqrt {3} \sqrt [3]{1+x} \sqrt [3]{1-x+x^2}}-\frac {\sqrt [3]{1+x^3} \log \left (-x+\sqrt [3]{1+x^3}\right )}{2 \sqrt [3]{1+x} \sqrt [3]{1-x+x^2}} \]
[Out]
Time = 0.01 (sec) , antiderivative size = 102, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.100, Rules used = {727, 245} \[ \int \frac {1}{\sqrt [3]{1+x} \sqrt [3]{1-x+x^2}} \, dx=\frac {\sqrt [3]{x^3+1} \arctan \left (\frac {\frac {2 x}{\sqrt [3]{x^3+1}}+1}{\sqrt {3}}\right )}{\sqrt {3} \sqrt [3]{x+1} \sqrt [3]{x^2-x+1}}-\frac {\sqrt [3]{x^3+1} \log \left (\sqrt [3]{x^3+1}-x\right )}{2 \sqrt [3]{x+1} \sqrt [3]{x^2-x+1}} \]
[In]
[Out]
Rule 245
Rule 727
Rubi steps \begin{align*} \text {integral}& = \frac {\sqrt [3]{1+x^3} \int \frac {1}{\sqrt [3]{1+x^3}} \, dx}{\sqrt [3]{1+x} \sqrt [3]{1-x+x^2}} \\ & = \frac {\sqrt [3]{1+x^3} \tan ^{-1}\left (\frac {1+\frac {2 x}{\sqrt [3]{1+x^3}}}{\sqrt {3}}\right )}{\sqrt {3} \sqrt [3]{1+x} \sqrt [3]{1-x+x^2}}-\frac {\sqrt [3]{1+x^3} \log \left (-x+\sqrt [3]{1+x^3}\right )}{2 \sqrt [3]{1+x} \sqrt [3]{1-x+x^2}} \\ \end{align*}
Result contains higher order function than in optimal. Order 6 vs. order 3 in optimal.
Time = 20.07 (sec) , antiderivative size = 132, normalized size of antiderivative = 1.29 \[ \int \frac {1}{\sqrt [3]{1+x} \sqrt [3]{1-x+x^2}} \, dx=\frac {3 \sqrt [3]{\frac {i+\sqrt {3}-2 i x}{3 i+\sqrt {3}}} \sqrt [3]{\frac {-i+\sqrt {3}+2 i x}{-3 i+\sqrt {3}}} (1+x)^{2/3} \operatorname {AppellF1}\left (\frac {2}{3},\frac {1}{3},\frac {1}{3},\frac {5}{3},\frac {2 i (1+x)}{3 i+\sqrt {3}},-\frac {2 i (1+x)}{-3 i+\sqrt {3}}\right )}{2 \sqrt [3]{1-x+x^2}} \]
[In]
[Out]
\[\int \frac {1}{\left (1+x \right )^{\frac {1}{3}} \left (x^{2}-x +1\right )^{\frac {1}{3}}}d x\]
[In]
[Out]
none
Time = 0.80 (sec) , antiderivative size = 115, normalized size of antiderivative = 1.13 \[ \int \frac {1}{\sqrt [3]{1+x} \sqrt [3]{1-x+x^2}} \, dx=\frac {1}{3} \, \sqrt {3} \arctan \left (-\frac {4 \, \sqrt {3} {\left (x^{2} - x + 1\right )}^{\frac {1}{3}} {\left (x + 1\right )}^{\frac {1}{3}} x^{2} - 2 \, \sqrt {3} {\left (x^{2} - x + 1\right )}^{\frac {2}{3}} {\left (x + 1\right )}^{\frac {2}{3}} x + \sqrt {3} {\left (x^{3} + 1\right )}}{9 \, x^{3} + 1}\right ) - \frac {1}{6} \, \log \left (3 \, {\left (x^{2} - x + 1\right )}^{\frac {1}{3}} {\left (x + 1\right )}^{\frac {1}{3}} x^{2} - 3 \, {\left (x^{2} - x + 1\right )}^{\frac {2}{3}} {\left (x + 1\right )}^{\frac {2}{3}} x + 1\right ) \]
[In]
[Out]
\[ \int \frac {1}{\sqrt [3]{1+x} \sqrt [3]{1-x+x^2}} \, dx=\int \frac {1}{\sqrt [3]{x + 1} \sqrt [3]{x^{2} - x + 1}}\, dx \]
[In]
[Out]
\[ \int \frac {1}{\sqrt [3]{1+x} \sqrt [3]{1-x+x^2}} \, dx=\int { \frac {1}{{\left (x^{2} - x + 1\right )}^{\frac {1}{3}} {\left (x + 1\right )}^{\frac {1}{3}}} \,d x } \]
[In]
[Out]
\[ \int \frac {1}{\sqrt [3]{1+x} \sqrt [3]{1-x+x^2}} \, dx=\int { \frac {1}{{\left (x^{2} - x + 1\right )}^{\frac {1}{3}} {\left (x + 1\right )}^{\frac {1}{3}}} \,d x } \]
[In]
[Out]
Timed out. \[ \int \frac {1}{\sqrt [3]{1+x} \sqrt [3]{1-x+x^2}} \, dx=\int \frac {1}{{\left (x+1\right )}^{1/3}\,{\left (x^2-x+1\right )}^{1/3}} \,d x \]
[In]
[Out]