Integrand size = 26, antiderivative size = 14 \[ \int \frac {-2-\log ^2(3)}{2 x-x^2+x \log ^2(3)} \, dx=\log \left (1-\frac {2+\log ^2(3)}{x}\right ) \]
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Time = 0.01 (sec) , antiderivative size = 15, normalized size of antiderivative = 1.07, number of steps used = 3, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.115, Rules used = {6, 12, 629} \[ \int \frac {-2-\log ^2(3)}{2 x-x^2+x \log ^2(3)} \, dx=\log \left (-x+2+\log ^2(3)\right )-\log (x) \]
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Rule 6
Rule 12
Rule 629
Rubi steps \begin{align*} \text {integral}& = \int \frac {-2-\log ^2(3)}{-x^2+x \left (2+\log ^2(3)\right )} \, dx \\ & = \left (-2-\log ^2(3)\right ) \int \frac {1}{-x^2+x \left (2+\log ^2(3)\right )} \, dx \\ & = -\log (x)+\log \left (2-x+\log ^2(3)\right ) \\ \end{align*}
Time = 0.01 (sec) , antiderivative size = 15, normalized size of antiderivative = 1.07 \[ \int \frac {-2-\log ^2(3)}{2 x-x^2+x \log ^2(3)} \, dx=-\log (x)+\log \left (2-x+\log ^2(3)\right ) \]
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Time = 0.24 (sec) , antiderivative size = 16, normalized size of antiderivative = 1.14
method | result | size |
norman | \(-\ln \left (x \right )+\ln \left (\ln \left (3\right )^{2}-x +2\right )\) | \(16\) |
parallelrisch | \(\frac {\left (-\ln \left (3\right )^{2}-2\right ) \left (\ln \left (x \right )-\ln \left (-\ln \left (3\right )^{2}+x -2\right )\right )}{2+\ln \left (3\right )^{2}}\) | \(33\) |
default | \(\left (-\ln \left (3\right )^{2}-2\right ) \left (\frac {\ln \left (x \right )}{2+\ln \left (3\right )^{2}}-\frac {\ln \left (-\ln \left (3\right )^{2}+x -2\right )}{2+\ln \left (3\right )^{2}}\right )\) | \(42\) |
risch | \(-\frac {\ln \left (x \right ) \ln \left (3\right )^{2}}{2+\ln \left (3\right )^{2}}-\frac {2 \ln \left (x \right )}{2+\ln \left (3\right )^{2}}+\frac {\ln \left (-\ln \left (3\right )^{2}+x -2\right ) \ln \left (3\right )^{2}}{2+\ln \left (3\right )^{2}}+\frac {2 \ln \left (-\ln \left (3\right )^{2}+x -2\right )}{2+\ln \left (3\right )^{2}}\) | \(73\) |
meijerg | \(\frac {\ln \left (3\right )^{2} \left (-\ln \left (3\right )^{2}-2\right ) \left (\ln \left (x \right )-\ln \left (2+\ln \left (3\right )^{2}\right )+i \pi -\ln \left (1-\frac {x}{2+\ln \left (3\right )^{2}}\right )\right )}{\left (2+\ln \left (3\right )^{2}\right )^{2}}+\frac {2 \left (-\ln \left (3\right )^{2}-2\right ) \left (\ln \left (x \right )-\ln \left (2+\ln \left (3\right )^{2}\right )+i \pi -\ln \left (1-\frac {x}{2+\ln \left (3\right )^{2}}\right )\right )}{\left (2+\ln \left (3\right )^{2}\right )^{2}}\) | \(105\) |
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none
Time = 0.26 (sec) , antiderivative size = 15, normalized size of antiderivative = 1.07 \[ \int \frac {-2-\log ^2(3)}{2 x-x^2+x \log ^2(3)} \, dx=\log \left (-\log \left (3\right )^{2} + x - 2\right ) - \log \left (x\right ) \]
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Leaf count of result is larger than twice the leaf count of optimal. 114 vs. \(2 (10) = 20\).
Time = 0.17 (sec) , antiderivative size = 114, normalized size of antiderivative = 8.14 \[ \int \frac {-2-\log ^2(3)}{2 x-x^2+x \log ^2(3)} \, dx=\left (\frac {\log {\left (x - 1 - \frac {2 \log {\left (3 \right )}^{2}}{\log {\left (3 \right )}^{2} + 2} - \frac {2}{\log {\left (3 \right )}^{2} + 2} - \frac {\log {\left (3 \right )}^{2}}{2} - \frac {\log {\left (3 \right )}^{4}}{2 \left (\log {\left (3 \right )}^{2} + 2\right )} \right )}}{\log {\left (3 \right )}^{2} + 2} - \frac {\log {\left (x - 1 - \frac {\log {\left (3 \right )}^{2}}{2} + \frac {\log {\left (3 \right )}^{4}}{2 \left (\log {\left (3 \right )}^{2} + 2\right )} + \frac {2}{\log {\left (3 \right )}^{2} + 2} + \frac {2 \log {\left (3 \right )}^{2}}{\log {\left (3 \right )}^{2} + 2} \right )}}{\log {\left (3 \right )}^{2} + 2}\right ) \left (\log {\left (3 \right )}^{2} + 2\right ) \]
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Leaf count of result is larger than twice the leaf count of optimal. 39 vs. \(2 (14) = 28\).
Time = 0.19 (sec) , antiderivative size = 39, normalized size of antiderivative = 2.79 \[ \int \frac {-2-\log ^2(3)}{2 x-x^2+x \log ^2(3)} \, dx={\left (\log \left (3\right )^{2} + 2\right )} {\left (\frac {\log \left (-\log \left (3\right )^{2} + x - 2\right )}{\log \left (3\right )^{2} + 2} - \frac {\log \left (x\right )}{\log \left (3\right )^{2} + 2}\right )} \]
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Leaf count of result is larger than twice the leaf count of optimal. 41 vs. \(2 (14) = 28\).
Time = 0.25 (sec) , antiderivative size = 41, normalized size of antiderivative = 2.93 \[ \int \frac {-2-\log ^2(3)}{2 x-x^2+x \log ^2(3)} \, dx={\left (\log \left (3\right )^{2} + 2\right )} {\left (\frac {\log \left ({\left | -\log \left (3\right )^{2} + x - 2 \right |}\right )}{\log \left (3\right )^{2} + 2} - \frac {\log \left ({\left | x \right |}\right )}{\log \left (3\right )^{2} + 2}\right )} \]
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Time = 0.32 (sec) , antiderivative size = 18, normalized size of antiderivative = 1.29 \[ \int \frac {-2-\log ^2(3)}{2 x-x^2+x \log ^2(3)} \, dx=-2\,\mathrm {atanh}\left (\frac {4\,x}{2\,{\ln \left (3\right )}^2+4}-1\right ) \]
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