Integrand size = 22, antiderivative size = 36 \[ \int \frac {d+e x^2}{5-8 x^2+3 x^4} \, dx=\frac {1}{2} (d+e) \text {arctanh}(x)-\frac {(3 d+5 e) \text {arctanh}\left (\sqrt {\frac {3}{5}} x\right )}{2 \sqrt {15}} \]
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Time = 0.02 (sec) , antiderivative size = 36, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.091, Rules used = {1180, 213} \[ \int \frac {d+e x^2}{5-8 x^2+3 x^4} \, dx=\frac {1}{2} \text {arctanh}(x) (d+e)-\frac {\text {arctanh}\left (\sqrt {\frac {3}{5}} x\right ) (3 d+5 e)}{2 \sqrt {15}} \]
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Rule 213
Rule 1180
Rubi steps \begin{align*} \text {integral}& = -\left (\frac {1}{2} (3 (d+e)) \int \frac {1}{-3+3 x^2} \, dx\right )+\frac {1}{2} (3 d+5 e) \int \frac {1}{-5+3 x^2} \, dx \\ & = \frac {1}{2} (d+e) \tanh ^{-1}(x)-\frac {(3 d+5 e) \tanh ^{-1}\left (\sqrt {\frac {3}{5}} x\right )}{2 \sqrt {15}} \\ \end{align*}
Time = 0.03 (sec) , antiderivative size = 72, normalized size of antiderivative = 2.00 \[ \int \frac {d+e x^2}{5-8 x^2+3 x^4} \, dx=\frac {1}{60} \left (\sqrt {15} (3 d+5 e) \log \left (\sqrt {15}-3 x\right )-15 (d+e) \log (1-x)+15 (d+e) \log (1+x)-\sqrt {15} (3 d+5 e) \log \left (\sqrt {15}+3 x\right )\right ) \]
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Time = 0.07 (sec) , antiderivative size = 45, normalized size of antiderivative = 1.25
method | result | size |
default | \(\left (\frac {d}{4}+\frac {e}{4}\right ) \ln \left (x +1\right )-\frac {\left (\frac {3 d}{2}+\frac {5 e}{2}\right ) \operatorname {arctanh}\left (\frac {x \sqrt {15}}{5}\right ) \sqrt {15}}{15}+\left (-\frac {d}{4}-\frac {e}{4}\right ) \ln \left (x -1\right )\) | \(45\) |
risch | \(\frac {\sqrt {15}\, \ln \left (-x \sqrt {15}+5\right ) d}{20}+\frac {\sqrt {15}\, \ln \left (-x \sqrt {15}+5\right ) e}{12}-\frac {\sqrt {15}\, \ln \left (x \sqrt {15}+5\right ) d}{20}-\frac {\sqrt {15}\, \ln \left (x \sqrt {15}+5\right ) e}{12}+\frac {\ln \left (x +1\right ) d}{4}+\frac {\ln \left (x +1\right ) e}{4}-\frac {\ln \left (1-x \right ) d}{4}-\frac {\ln \left (1-x \right ) e}{4}\) | \(92\) |
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Leaf count of result is larger than twice the leaf count of optimal. 55 vs. \(2 (27) = 54\).
Time = 0.27 (sec) , antiderivative size = 55, normalized size of antiderivative = 1.53 \[ \int \frac {d+e x^2}{5-8 x^2+3 x^4} \, dx=\frac {1}{60} \, \sqrt {15} {\left (3 \, d + 5 \, e\right )} \log \left (\frac {3 \, x^{2} - 2 \, \sqrt {15} x + 5}{3 \, x^{2} - 5}\right ) + \frac {1}{4} \, {\left (d + e\right )} \log \left (x + 1\right ) - \frac {1}{4} \, {\left (d + e\right )} \log \left (x - 1\right ) \]
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Leaf count of result is larger than twice the leaf count of optimal. 474 vs. \(2 (31) = 62\).
Time = 0.79 (sec) , antiderivative size = 474, normalized size of antiderivative = 13.17 \[ \int \frac {d+e x^2}{5-8 x^2+3 x^4} \, dx=\frac {\left (d + e\right ) \log {\left (x + \frac {- 51 d^{3} \left (d + e\right ) - 180 d^{2} e \left (d + e\right ) - 225 d e^{2} \left (d + e\right ) + 60 d \left (d + e\right )^{3} - 100 e^{3} \left (d + e\right ) + 75 e \left (d + e\right )^{3}}{9 d^{4} + 24 d^{3} e - 40 d e^{3} - 25 e^{4}} \right )}}{4} - \frac {\left (d + e\right ) \log {\left (x + \frac {51 d^{3} \left (d + e\right ) + 180 d^{2} e \left (d + e\right ) + 225 d e^{2} \left (d + e\right ) - 60 d \left (d + e\right )^{3} + 100 e^{3} \left (d + e\right ) - 75 e \left (d + e\right )^{3}}{9 d^{4} + 24 d^{3} e - 40 d e^{3} - 25 e^{4}} \right )}}{4} + \frac {\sqrt {15} \cdot \left (3 d + 5 e\right ) \log {\left (x + \frac {- \frac {17 \sqrt {15} d^{3} \cdot \left (3 d + 5 e\right )}{5} - 12 \sqrt {15} d^{2} e \left (3 d + 5 e\right ) - 15 \sqrt {15} d e^{2} \cdot \left (3 d + 5 e\right ) + \frac {4 \sqrt {15} d \left (3 d + 5 e\right )^{3}}{15} - \frac {20 \sqrt {15} e^{3} \cdot \left (3 d + 5 e\right )}{3} + \frac {\sqrt {15} e \left (3 d + 5 e\right )^{3}}{3}}{9 d^{4} + 24 d^{3} e - 40 d e^{3} - 25 e^{4}} \right )}}{60} - \frac {\sqrt {15} \cdot \left (3 d + 5 e\right ) \log {\left (x + \frac {\frac {17 \sqrt {15} d^{3} \cdot \left (3 d + 5 e\right )}{5} + 12 \sqrt {15} d^{2} e \left (3 d + 5 e\right ) + 15 \sqrt {15} d e^{2} \cdot \left (3 d + 5 e\right ) - \frac {4 \sqrt {15} d \left (3 d + 5 e\right )^{3}}{15} + \frac {20 \sqrt {15} e^{3} \cdot \left (3 d + 5 e\right )}{3} - \frac {\sqrt {15} e \left (3 d + 5 e\right )^{3}}{3}}{9 d^{4} + 24 d^{3} e - 40 d e^{3} - 25 e^{4}} \right )}}{60} \]
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none
Time = 0.29 (sec) , antiderivative size = 51, normalized size of antiderivative = 1.42 \[ \int \frac {d+e x^2}{5-8 x^2+3 x^4} \, dx=\frac {1}{60} \, \sqrt {15} {\left (3 \, d + 5 \, e\right )} \log \left (\frac {3 \, x - \sqrt {15}}{3 \, x + \sqrt {15}}\right ) + \frac {1}{4} \, {\left (d + e\right )} \log \left (x + 1\right ) - \frac {1}{4} \, {\left (d + e\right )} \log \left (x - 1\right ) \]
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Leaf count of result is larger than twice the leaf count of optimal. 57 vs. \(2 (27) = 54\).
Time = 0.29 (sec) , antiderivative size = 57, normalized size of antiderivative = 1.58 \[ \int \frac {d+e x^2}{5-8 x^2+3 x^4} \, dx=\frac {1}{60} \, \sqrt {15} {\left (3 \, d + 5 \, e\right )} \log \left (\frac {{\left | 6 \, x - 2 \, \sqrt {15} \right |}}{{\left | 6 \, x + 2 \, \sqrt {15} \right |}}\right ) + \frac {1}{4} \, {\left (d + e\right )} \log \left ({\left | x + 1 \right |}\right ) - \frac {1}{4} \, {\left (d + e\right )} \log \left ({\left | x - 1 \right |}\right ) \]
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Time = 13.41 (sec) , antiderivative size = 290, normalized size of antiderivative = 8.06 \[ \int \frac {d+e x^2}{5-8 x^2+3 x^4} \, dx=\frac {\sqrt {15}\,\mathrm {atanh}\left (\frac {54\,\sqrt {15}\,d^3\,x}{25\,\left (-\frac {54\,d^3}{5}-18\,d^2\,e+18\,d\,e^2+30\,e^3\right )}-\frac {6\,\sqrt {15}\,e^3\,x}{-\frac {54\,d^3}{5}-18\,d^2\,e+18\,d\,e^2+30\,e^3}-\frac {18\,\sqrt {15}\,d\,e^2\,x}{5\,\left (-\frac {54\,d^3}{5}-18\,d^2\,e+18\,d\,e^2+30\,e^3\right )}+\frac {18\,\sqrt {15}\,d^2\,e\,x}{5\,\left (-\frac {54\,d^3}{5}-18\,d^2\,e+18\,d\,e^2+30\,e^3\right )}\right )\,\left (3\,d+5\,e\right )}{30}-\mathrm {atanh}\left (\frac {18\,d^3\,x}{-18\,d^3-18\,d^2\,e+30\,d\,e^2+30\,e^3}-\frac {30\,e^3\,x}{-18\,d^3-18\,d^2\,e+30\,d\,e^2+30\,e^3}-\frac {30\,d\,e^2\,x}{-18\,d^3-18\,d^2\,e+30\,d\,e^2+30\,e^3}+\frac {18\,d^2\,e\,x}{-18\,d^3-18\,d^2\,e+30\,d\,e^2+30\,e^3}\right )\,\left (\frac {d}{2}+\frac {e}{2}\right ) \]
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