Integrand size = 10, antiderivative size = 382 \[ \int e^x \tanh ^2(4 x) \, dx=e^x+\frac {e^x}{2 \left (1+e^{8 x}\right )}+\frac {\arctan \left (\frac {\sqrt {2-\sqrt {2}}-2 e^x}{\sqrt {2+\sqrt {2}}}\right )}{8 \sqrt {2 \left (2-\sqrt {2}\right )}}+\frac {\arctan \left (\frac {\sqrt {2+\sqrt {2}}-2 e^x}{\sqrt {2-\sqrt {2}}}\right )}{8 \sqrt {2 \left (2+\sqrt {2}\right )}}-\frac {\arctan \left (\frac {\sqrt {2-\sqrt {2}}+2 e^x}{\sqrt {2+\sqrt {2}}}\right )}{8 \sqrt {2 \left (2-\sqrt {2}\right )}}-\frac {\arctan \left (\frac {\sqrt {2+\sqrt {2}}+2 e^x}{\sqrt {2-\sqrt {2}}}\right )}{8 \sqrt {2 \left (2+\sqrt {2}\right )}}+\frac {1}{32} \sqrt {2-\sqrt {2}} \log \left (1-\sqrt {2-\sqrt {2}} e^x+e^{2 x}\right )-\frac {1}{32} \sqrt {2-\sqrt {2}} \log \left (1+\sqrt {2-\sqrt {2}} e^x+e^{2 x}\right )+\frac {1}{32} \sqrt {2+\sqrt {2}} \log \left (1-\sqrt {2+\sqrt {2}} e^x+e^{2 x}\right )-\frac {1}{32} \sqrt {2+\sqrt {2}} \log \left (1+\sqrt {2+\sqrt {2}} e^x+e^{2 x}\right ) \]
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Time = 0.33 (sec) , antiderivative size = 382, normalized size of antiderivative = 1.00, number of steps used = 23, number of rules used = 9, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.900, Rules used = {2320, 398, 294, 219, 1183, 648, 632, 210, 642} \[ \int e^x \tanh ^2(4 x) \, dx=\frac {\arctan \left (\frac {\sqrt {2-\sqrt {2}}-2 e^x}{\sqrt {2+\sqrt {2}}}\right )}{8 \sqrt {2 \left (2-\sqrt {2}\right )}}+\frac {\arctan \left (\frac {\sqrt {2+\sqrt {2}}-2 e^x}{\sqrt {2-\sqrt {2}}}\right )}{8 \sqrt {2 \left (2+\sqrt {2}\right )}}-\frac {\arctan \left (\frac {2 e^x+\sqrt {2-\sqrt {2}}}{\sqrt {2+\sqrt {2}}}\right )}{8 \sqrt {2 \left (2-\sqrt {2}\right )}}-\frac {\arctan \left (\frac {2 e^x+\sqrt {2+\sqrt {2}}}{\sqrt {2-\sqrt {2}}}\right )}{8 \sqrt {2 \left (2+\sqrt {2}\right )}}+e^x+\frac {e^x}{2 \left (e^{8 x}+1\right )}+\frac {1}{32} \sqrt {2-\sqrt {2}} \log \left (-\sqrt {2-\sqrt {2}} e^x+e^{2 x}+1\right )-\frac {1}{32} \sqrt {2-\sqrt {2}} \log \left (\sqrt {2-\sqrt {2}} e^x+e^{2 x}+1\right )+\frac {1}{32} \sqrt {2+\sqrt {2}} \log \left (-\sqrt {2+\sqrt {2}} e^x+e^{2 x}+1\right )-\frac {1}{32} \sqrt {2+\sqrt {2}} \log \left (\sqrt {2+\sqrt {2}} e^x+e^{2 x}+1\right ) \]
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Rule 210
Rule 219
Rule 294
Rule 398
Rule 632
Rule 642
Rule 648
Rule 1183
Rule 2320
Rubi steps \begin{align*} \text {integral}& = \text {Subst}\left (\int \frac {\left (1-x^8\right )^2}{\left (1+x^8\right )^2} \, dx,x,e^x\right ) \\ & = \text {Subst}\left (\int \left (1-\frac {4 x^8}{\left (1+x^8\right )^2}\right ) \, dx,x,e^x\right ) \\ & = e^x-4 \text {Subst}\left (\int \frac {x^8}{\left (1+x^8\right )^2} \, dx,x,e^x\right ) \\ & = e^x+\frac {e^x}{2 \left (1+e^{8 x}\right )}-\frac {1}{2} \text {Subst}\left (\int \frac {1}{1+x^8} \, dx,x,e^x\right ) \\ & = e^x+\frac {e^x}{2 \left (1+e^{8 x}\right )}-\frac {\text {Subst}\left (\int \frac {\sqrt {2}-x^2}{1-\sqrt {2} x^2+x^4} \, dx,x,e^x\right )}{4 \sqrt {2}}-\frac {\text {Subst}\left (\int \frac {\sqrt {2}+x^2}{1+\sqrt {2} x^2+x^4} \, dx,x,e^x\right )}{4 \sqrt {2}} \\ & = e^x+\frac {e^x}{2 \left (1+e^{8 x}\right )}-\frac {\text {Subst}\left (\int \frac {\sqrt {2 \left (2-\sqrt {2}\right )}-\left (-1+\sqrt {2}\right ) x}{1-\sqrt {2-\sqrt {2}} x+x^2} \, dx,x,e^x\right )}{8 \sqrt {2 \left (2-\sqrt {2}\right )}}-\frac {\text {Subst}\left (\int \frac {\sqrt {2 \left (2-\sqrt {2}\right )}+\left (-1+\sqrt {2}\right ) x}{1+\sqrt {2-\sqrt {2}} x+x^2} \, dx,x,e^x\right )}{8 \sqrt {2 \left (2-\sqrt {2}\right )}}-\frac {\text {Subst}\left (\int \frac {\sqrt {2 \left (2+\sqrt {2}\right )}-\left (1+\sqrt {2}\right ) x}{1-\sqrt {2+\sqrt {2}} x+x^2} \, dx,x,e^x\right )}{8 \sqrt {2 \left (2+\sqrt {2}\right )}}-\frac {\text {Subst}\left (\int \frac {\sqrt {2 \left (2+\sqrt {2}\right )}+\left (1+\sqrt {2}\right ) x}{1+\sqrt {2+\sqrt {2}} x+x^2} \, dx,x,e^x\right )}{8 \sqrt {2 \left (2+\sqrt {2}\right )}} \\ & = e^x+\frac {e^x}{2 \left (1+e^{8 x}\right )}-\frac {1}{16} \sqrt {\frac {1}{2} \left (3-2 \sqrt {2}\right )} \text {Subst}\left (\int \frac {1}{1-\sqrt {2+\sqrt {2}} x+x^2} \, dx,x,e^x\right )-\frac {1}{16} \sqrt {\frac {1}{2} \left (3-2 \sqrt {2}\right )} \text {Subst}\left (\int \frac {1}{1+\sqrt {2+\sqrt {2}} x+x^2} \, dx,x,e^x\right )+\frac {1}{32} \sqrt {2-\sqrt {2}} \text {Subst}\left (\int \frac {-\sqrt {2-\sqrt {2}}+2 x}{1-\sqrt {2-\sqrt {2}} x+x^2} \, dx,x,e^x\right )-\frac {1}{32} \sqrt {2-\sqrt {2}} \text {Subst}\left (\int \frac {\sqrt {2-\sqrt {2}}+2 x}{1+\sqrt {2-\sqrt {2}} x+x^2} \, dx,x,e^x\right )+\frac {1}{32} \sqrt {2+\sqrt {2}} \text {Subst}\left (\int \frac {-\sqrt {2+\sqrt {2}}+2 x}{1-\sqrt {2+\sqrt {2}} x+x^2} \, dx,x,e^x\right )-\frac {1}{32} \sqrt {2+\sqrt {2}} \text {Subst}\left (\int \frac {\sqrt {2+\sqrt {2}}+2 x}{1+\sqrt {2+\sqrt {2}} x+x^2} \, dx,x,e^x\right )-\frac {1}{16} \sqrt {\frac {1}{2} \left (3+2 \sqrt {2}\right )} \text {Subst}\left (\int \frac {1}{1-\sqrt {2-\sqrt {2}} x+x^2} \, dx,x,e^x\right )-\frac {1}{16} \sqrt {\frac {1}{2} \left (3+2 \sqrt {2}\right )} \text {Subst}\left (\int \frac {1}{1+\sqrt {2-\sqrt {2}} x+x^2} \, dx,x,e^x\right ) \\ & = e^x+\frac {e^x}{2 \left (1+e^{8 x}\right )}+\frac {1}{32} \sqrt {2-\sqrt {2}} \log \left (1-\sqrt {2-\sqrt {2}} e^x+e^{2 x}\right )-\frac {1}{32} \sqrt {2-\sqrt {2}} \log \left (1+\sqrt {2-\sqrt {2}} e^x+e^{2 x}\right )+\frac {1}{32} \sqrt {2+\sqrt {2}} \log \left (1-\sqrt {2+\sqrt {2}} e^x+e^{2 x}\right )-\frac {1}{32} \sqrt {2+\sqrt {2}} \log \left (1+\sqrt {2+\sqrt {2}} e^x+e^{2 x}\right )+\frac {1}{8} \sqrt {\frac {1}{2} \left (3-2 \sqrt {2}\right )} \text {Subst}\left (\int \frac {1}{-2+\sqrt {2}-x^2} \, dx,x,-\sqrt {2+\sqrt {2}}+2 e^x\right )+\frac {1}{8} \sqrt {\frac {1}{2} \left (3-2 \sqrt {2}\right )} \text {Subst}\left (\int \frac {1}{-2+\sqrt {2}-x^2} \, dx,x,\sqrt {2+\sqrt {2}}+2 e^x\right )+\frac {1}{8} \sqrt {\frac {1}{2} \left (3+2 \sqrt {2}\right )} \text {Subst}\left (\int \frac {1}{-2-\sqrt {2}-x^2} \, dx,x,-\sqrt {2-\sqrt {2}}+2 e^x\right )+\frac {1}{8} \sqrt {\frac {1}{2} \left (3+2 \sqrt {2}\right )} \text {Subst}\left (\int \frac {1}{-2-\sqrt {2}-x^2} \, dx,x,\sqrt {2-\sqrt {2}}+2 e^x\right ) \\ & = e^x+\frac {e^x}{2 \left (1+e^{8 x}\right )}+\frac {1}{16} \sqrt {2+\sqrt {2}} \arctan \left (\frac {\sqrt {2-\sqrt {2}}-2 e^x}{\sqrt {2+\sqrt {2}}}\right )+\frac {1}{16} \sqrt {2-\sqrt {2}} \arctan \left (\frac {\sqrt {2+\sqrt {2}}-2 e^x}{\sqrt {2-\sqrt {2}}}\right )-\frac {1}{16} \sqrt {2+\sqrt {2}} \arctan \left (\frac {\sqrt {2-\sqrt {2}}+2 e^x}{\sqrt {2+\sqrt {2}}}\right )-\frac {1}{16} \sqrt {2-\sqrt {2}} \arctan \left (\frac {\sqrt {2+\sqrt {2}}+2 e^x}{\sqrt {2-\sqrt {2}}}\right )+\frac {1}{32} \sqrt {2-\sqrt {2}} \log \left (1-\sqrt {2-\sqrt {2}} e^x+e^{2 x}\right )-\frac {1}{32} \sqrt {2-\sqrt {2}} \log \left (1+\sqrt {2-\sqrt {2}} e^x+e^{2 x}\right )+\frac {1}{32} \sqrt {2+\sqrt {2}} \log \left (1-\sqrt {2+\sqrt {2}} e^x+e^{2 x}\right )-\frac {1}{32} \sqrt {2+\sqrt {2}} \log \left (1+\sqrt {2+\sqrt {2}} e^x+e^{2 x}\right ) \\ \end{align*}
Result contains higher order function than in optimal. Order 9 vs. order 3 in optimal.
Time = 0.07 (sec) , antiderivative size = 51, normalized size of antiderivative = 0.13 \[ \int e^x \tanh ^2(4 x) \, dx=e^x+\frac {e^x}{2 \left (1+e^{8 x}\right )}+\frac {1}{16} \text {RootSum}\left [1+\text {$\#$1}^8\&,\frac {x-\log \left (e^x-\text {$\#$1}\right )}{\text {$\#$1}^7}\&\right ] \]
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Result contains higher order function than in optimal. Order 9 vs. order 3.
Time = 0.17 (sec) , antiderivative size = 36, normalized size of antiderivative = 0.09
method | result | size |
risch | \({\mathrm e}^{x}+\frac {{\mathrm e}^{x}}{2+2 \,{\mathrm e}^{8 x}}+\left (\munderset {\textit {\_R} =\operatorname {RootOf}\left (4294967296 \textit {\_Z}^{8}+1\right )}{\sum }\textit {\_R} \ln \left ({\mathrm e}^{x}-16 \textit {\_R} \right )\right )\) | \(36\) |
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Result contains complex when optimal does not.
Time = 0.29 (sec) , antiderivative size = 1303, normalized size of antiderivative = 3.41 \[ \int e^x \tanh ^2(4 x) \, dx=\text {Too large to display} \]
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\[ \int e^x \tanh ^2(4 x) \, dx=\int e^{x} \tanh ^{2}{\left (4 x \right )}\, dx \]
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\[ \int e^x \tanh ^2(4 x) \, dx=\int { e^{x} \tanh \left (4 \, x\right )^{2} \,d x } \]
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Time = 0.27 (sec) , antiderivative size = 263, normalized size of antiderivative = 0.69 \[ \int e^x \tanh ^2(4 x) \, dx=-\frac {1}{16} \, \sqrt {-\sqrt {2} + 2} \arctan \left (\frac {\sqrt {\sqrt {2} + 2} + 2 \, e^{x}}{\sqrt {-\sqrt {2} + 2}}\right ) - \frac {1}{16} \, \sqrt {-\sqrt {2} + 2} \arctan \left (-\frac {\sqrt {\sqrt {2} + 2} - 2 \, e^{x}}{\sqrt {-\sqrt {2} + 2}}\right ) - \frac {1}{16} \, \sqrt {\sqrt {2} + 2} \arctan \left (\frac {\sqrt {-\sqrt {2} + 2} + 2 \, e^{x}}{\sqrt {\sqrt {2} + 2}}\right ) - \frac {1}{16} \, \sqrt {\sqrt {2} + 2} \arctan \left (-\frac {\sqrt {-\sqrt {2} + 2} - 2 \, e^{x}}{\sqrt {\sqrt {2} + 2}}\right ) - \frac {1}{32} \, \sqrt {\sqrt {2} + 2} \log \left (\sqrt {\sqrt {2} + 2} e^{x} + e^{\left (2 \, x\right )} + 1\right ) + \frac {1}{32} \, \sqrt {\sqrt {2} + 2} \log \left (-\sqrt {\sqrt {2} + 2} e^{x} + e^{\left (2 \, x\right )} + 1\right ) - \frac {1}{32} \, \sqrt {-\sqrt {2} + 2} \log \left (\sqrt {-\sqrt {2} + 2} e^{x} + e^{\left (2 \, x\right )} + 1\right ) + \frac {1}{32} \, \sqrt {-\sqrt {2} + 2} \log \left (-\sqrt {-\sqrt {2} + 2} e^{x} + e^{\left (2 \, x\right )} + 1\right ) + \frac {e^{x}}{2 \, {\left (e^{\left (8 \, x\right )} + 1\right )}} + e^{x} \]
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Time = 4.60 (sec) , antiderivative size = 474, normalized size of antiderivative = 1.24 \[ \int e^x \tanh ^2(4 x) \, dx={\mathrm {e}}^x+\frac {{\mathrm {e}}^x}{2\,\left ({\mathrm {e}}^{8\,x}+1\right )}+\ln \left (\frac {{\mathrm {e}}^x}{2}-\frac {\sqrt {\sqrt {2}+2}}{4}-\frac {\sqrt {2-\sqrt {2}}\,1{}\mathrm {i}}{4}\right )\,\left (\frac {\sqrt {\sqrt {2}+2}}{32}+\frac {\sqrt {2-\sqrt {2}}\,1{}\mathrm {i}}{32}\right )-\ln \left (\frac {{\mathrm {e}}^x}{2}+\frac {\sqrt {\sqrt {2}+2}}{4}+\frac {\sqrt {2-\sqrt {2}}\,1{}\mathrm {i}}{4}\right )\,\left (\frac {\sqrt {\sqrt {2}+2}}{32}+\frac {\sqrt {2-\sqrt {2}}\,1{}\mathrm {i}}{32}\right )+\ln \left (\frac {{\mathrm {e}}^x}{2}+\frac {\sqrt {2-\sqrt {2}}}{4}-\frac {\sqrt {\sqrt {2}+2}\,1{}\mathrm {i}}{4}\right )\,\left (-\frac {\sqrt {2-\sqrt {2}}}{32}+\frac {\sqrt {\sqrt {2}+2}\,1{}\mathrm {i}}{32}\right )-\ln \left (\frac {{\mathrm {e}}^x}{2}-\frac {\sqrt {2-\sqrt {2}}}{4}+\frac {\sqrt {\sqrt {2}+2}\,1{}\mathrm {i}}{4}\right )\,\left (-\frac {\sqrt {2-\sqrt {2}}}{32}+\frac {\sqrt {\sqrt {2}+2}\,1{}\mathrm {i}}{32}\right )+\sqrt {2}\,\ln \left (\frac {{\mathrm {e}}^x}{2}+\sqrt {2}\,\left (\frac {\sqrt {\sqrt {2}+2}}{32}+\frac {\sqrt {2-\sqrt {2}}\,1{}\mathrm {i}}{32}\right )\,\left (-4-4{}\mathrm {i}\right )\right )\,\left (\frac {\sqrt {\sqrt {2}+2}}{32}+\frac {\sqrt {2-\sqrt {2}}\,1{}\mathrm {i}}{32}\right )\,\left (\frac {1}{2}+\frac {1}{2}{}\mathrm {i}\right )+\sqrt {2}\,\ln \left (\frac {{\mathrm {e}}^x}{2}+\sqrt {2}\,\left (\frac {\sqrt {\sqrt {2}+2}}{32}+\frac {\sqrt {2-\sqrt {2}}\,1{}\mathrm {i}}{32}\right )\,\left (-4+4{}\mathrm {i}\right )\right )\,\left (\frac {\sqrt {\sqrt {2}+2}}{32}+\frac {\sqrt {2-\sqrt {2}}\,1{}\mathrm {i}}{32}\right )\,\left (\frac {1}{2}-\frac {1}{2}{}\mathrm {i}\right )+\sqrt {2}\,\ln \left (\frac {{\mathrm {e}}^x}{2}+\sqrt {2}\,\left (\frac {\sqrt {\sqrt {2}+2}}{32}+\frac {\sqrt {2-\sqrt {2}}\,1{}\mathrm {i}}{32}\right )\,\left (4-4{}\mathrm {i}\right )\right )\,\left (\frac {\sqrt {\sqrt {2}+2}}{32}+\frac {\sqrt {2-\sqrt {2}}\,1{}\mathrm {i}}{32}\right )\,\left (-\frac {1}{2}+\frac {1}{2}{}\mathrm {i}\right )+\sqrt {2}\,\ln \left (\frac {{\mathrm {e}}^x}{2}+\sqrt {2}\,\left (\frac {\sqrt {\sqrt {2}+2}}{32}+\frac {\sqrt {2-\sqrt {2}}\,1{}\mathrm {i}}{32}\right )\,\left (4+4{}\mathrm {i}\right )\right )\,\left (\frac {\sqrt {\sqrt {2}+2}}{32}+\frac {\sqrt {2-\sqrt {2}}\,1{}\mathrm {i}}{32}\right )\,\left (-\frac {1}{2}-\frac {1}{2}{}\mathrm {i}\right ) \]
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