Integrand size = 59, antiderivative size = 18 \[ \int \frac {e^x \left (21-3 x-3 \log ^2(5)\right )}{-125+75 x-15 x^2+x^3+\left (75-30 x+3 x^2\right ) \log ^2(5)+(-15+3 x) \log ^4(5)+\log ^6(5)} \, dx=3 \left (2-\frac {e^x}{\left (-5+x+\log ^2(5)\right )^2}\right ) \]
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Time = 0.11 (sec) , antiderivative size = 18, normalized size of antiderivative = 1.00, number of steps used = 7, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.051, Rules used = {2230, 2208, 2209} \[ \int \frac {e^x \left (21-3 x-3 \log ^2(5)\right )}{-125+75 x-15 x^2+x^3+\left (75-30 x+3 x^2\right ) \log ^2(5)+(-15+3 x) \log ^4(5)+\log ^6(5)} \, dx=-\frac {3 e^x}{\left (-x+5-\log ^2(5)\right )^2} \]
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Rule 2208
Rule 2209
Rule 2230
Rubi steps \begin{align*} \text {integral}& = \int \left (\frac {6 e^x}{\left (-5+x+\log ^2(5)\right )^3}-\frac {3 e^x}{\left (-5+x+\log ^2(5)\right )^2}\right ) \, dx \\ & = -\left (3 \int \frac {e^x}{\left (-5+x+\log ^2(5)\right )^2} \, dx\right )+6 \int \frac {e^x}{\left (-5+x+\log ^2(5)\right )^3} \, dx \\ & = -\frac {3 e^x}{\left (5-x-\log ^2(5)\right )^2}-\frac {3 e^x}{5-x-\log ^2(5)}+3 \int \frac {e^x}{\left (-5+x+\log ^2(5)\right )^2} \, dx-3 \int \frac {e^x}{-5+x+\log ^2(5)} \, dx \\ & = -3 e^{5-\log ^2(5)} \operatorname {ExpIntegralEi}\left (-5+x+\log ^2(5)\right )-\frac {3 e^x}{\left (5-x-\log ^2(5)\right )^2}+3 \int \frac {e^x}{-5+x+\log ^2(5)} \, dx \\ & = -\frac {3 e^x}{\left (5-x-\log ^2(5)\right )^2} \\ \end{align*}
Time = 0.15 (sec) , antiderivative size = 14, normalized size of antiderivative = 0.78 \[ \int \frac {e^x \left (21-3 x-3 \log ^2(5)\right )}{-125+75 x-15 x^2+x^3+\left (75-30 x+3 x^2\right ) \log ^2(5)+(-15+3 x) \log ^4(5)+\log ^6(5)} \, dx=-\frac {3 e^x}{\left (-5+x+\log ^2(5)\right )^2} \]
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Time = 0.21 (sec) , antiderivative size = 14, normalized size of antiderivative = 0.78
method | result | size |
norman | \(-\frac {3 \,{\mathrm e}^{x}}{\left (\ln \left (5\right )^{2}-5+x \right )^{2}}\) | \(14\) |
risch | \(-\frac {3 \,{\mathrm e}^{x}}{\left (\ln \left (5\right )^{2}-5+x \right )^{2}}\) | \(14\) |
gosper | \(-\frac {3 \,{\mathrm e}^{x}}{\ln \left (5\right )^{4}+2 x \ln \left (5\right )^{2}-10 \ln \left (5\right )^{2}+x^{2}-10 x +25}\) | \(32\) |
parallelrisch | \(-\frac {3 \,{\mathrm e}^{x}}{\ln \left (5\right )^{4}+2 x \ln \left (5\right )^{2}-10 \ln \left (5\right )^{2}+x^{2}-10 x +25}\) | \(32\) |
default | \(-\frac {21 \,{\mathrm e}^{x}}{2 \left (\ln \left (5\right )^{2}-5+x \right )^{2}}-\frac {15 \,{\mathrm e}^{x}}{2 \left (\ln \left (5\right )^{2}-5+x \right )}-\frac {15 \,{\mathrm e}^{-\ln \left (5\right )^{2}+5} \operatorname {Ei}_{1}\left (-x -\ln \left (5\right )^{2}+5\right )}{2}-3 \left (-\ln \left (5\right )^{2}+5\right ) \left (-\frac {{\mathrm e}^{x}}{2 \left (\ln \left (5\right )^{2}-5+x \right )^{2}}-\frac {{\mathrm e}^{x}}{2 \left (\ln \left (5\right )^{2}-5+x \right )}-\frac {{\mathrm e}^{-\ln \left (5\right )^{2}+5} \operatorname {Ei}_{1}\left (-x -\ln \left (5\right )^{2}+5\right )}{2}\right )-3 \ln \left (5\right )^{2} \left (-\frac {{\mathrm e}^{x}}{2 \left (\ln \left (5\right )^{2}-5+x \right )^{2}}-\frac {{\mathrm e}^{x}}{2 \left (\ln \left (5\right )^{2}-5+x \right )}-\frac {{\mathrm e}^{-\ln \left (5\right )^{2}+5} \operatorname {Ei}_{1}\left (-x -\ln \left (5\right )^{2}+5\right )}{2}\right )\) | \(170\) |
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none
Time = 0.26 (sec) , antiderivative size = 27, normalized size of antiderivative = 1.50 \[ \int \frac {e^x \left (21-3 x-3 \log ^2(5)\right )}{-125+75 x-15 x^2+x^3+\left (75-30 x+3 x^2\right ) \log ^2(5)+(-15+3 x) \log ^4(5)+\log ^6(5)} \, dx=-\frac {3 \, e^{x}}{\log \left (5\right )^{4} + 2 \, {\left (x - 5\right )} \log \left (5\right )^{2} + x^{2} - 10 \, x + 25} \]
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Leaf count of result is larger than twice the leaf count of optimal. 34 vs. \(2 (15) = 30\).
Time = 0.08 (sec) , antiderivative size = 34, normalized size of antiderivative = 1.89 \[ \int \frac {e^x \left (21-3 x-3 \log ^2(5)\right )}{-125+75 x-15 x^2+x^3+\left (75-30 x+3 x^2\right ) \log ^2(5)+(-15+3 x) \log ^4(5)+\log ^6(5)} \, dx=- \frac {3 e^{x}}{x^{2} - 10 x + 2 x \log {\left (5 \right )}^{2} - 10 \log {\left (5 \right )}^{2} + \log {\left (5 \right )}^{4} + 25} \]
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\[ \int \frac {e^x \left (21-3 x-3 \log ^2(5)\right )}{-125+75 x-15 x^2+x^3+\left (75-30 x+3 x^2\right ) \log ^2(5)+(-15+3 x) \log ^4(5)+\log ^6(5)} \, dx=\int { -\frac {3 \, {\left (\log \left (5\right )^{2} + x - 7\right )} e^{x}}{\log \left (5\right )^{6} + 3 \, {\left (x - 5\right )} \log \left (5\right )^{4} + x^{3} + 3 \, {\left (x^{2} - 10 \, x + 25\right )} \log \left (5\right )^{2} - 15 \, x^{2} + 75 \, x - 125} \,d x } \]
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Leaf count of result is larger than twice the leaf count of optimal. 31 vs. \(2 (15) = 30\).
Time = 0.27 (sec) , antiderivative size = 31, normalized size of antiderivative = 1.72 \[ \int \frac {e^x \left (21-3 x-3 \log ^2(5)\right )}{-125+75 x-15 x^2+x^3+\left (75-30 x+3 x^2\right ) \log ^2(5)+(-15+3 x) \log ^4(5)+\log ^6(5)} \, dx=-\frac {3 \, e^{x}}{\log \left (5\right )^{4} + 2 \, x \log \left (5\right )^{2} + x^{2} - 10 \, \log \left (5\right )^{2} - 10 \, x + 25} \]
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Time = 13.78 (sec) , antiderivative size = 13, normalized size of antiderivative = 0.72 \[ \int \frac {e^x \left (21-3 x-3 \log ^2(5)\right )}{-125+75 x-15 x^2+x^3+\left (75-30 x+3 x^2\right ) \log ^2(5)+(-15+3 x) \log ^4(5)+\log ^6(5)} \, dx=-\frac {3\,{\mathrm {e}}^x}{{\left (x+{\ln \left (5\right )}^2-5\right )}^2} \]
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