Integrand size = 22, antiderivative size = 85 \[ \int \tan (c+d x) (a+i a \tan (c+d x))^3 \, dx=-4 i a^3 x-\frac {4 a^3 \log (\cos (c+d x))}{d}+\frac {2 i a^3 \tan (c+d x)}{d}+\frac {a (a+i a \tan (c+d x))^2}{2 d}+\frac {(a+i a \tan (c+d x))^3}{3 d} \]
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Time = 0.07 (sec) , antiderivative size = 85, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 4, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.182, Rules used = {3608, 3559, 3558, 3556} \[ \int \tan (c+d x) (a+i a \tan (c+d x))^3 \, dx=\frac {2 i a^3 \tan (c+d x)}{d}-\frac {4 a^3 \log (\cos (c+d x))}{d}-4 i a^3 x+\frac {a (a+i a \tan (c+d x))^2}{2 d}+\frac {(a+i a \tan (c+d x))^3}{3 d} \]
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Rule 3556
Rule 3558
Rule 3559
Rule 3608
Rubi steps \begin{align*} \text {integral}& = \frac {(a+i a \tan (c+d x))^3}{3 d}-i \int (a+i a \tan (c+d x))^3 \, dx \\ & = \frac {a (a+i a \tan (c+d x))^2}{2 d}+\frac {(a+i a \tan (c+d x))^3}{3 d}-(2 i a) \int (a+i a \tan (c+d x))^2 \, dx \\ & = -4 i a^3 x+\frac {2 i a^3 \tan (c+d x)}{d}+\frac {a (a+i a \tan (c+d x))^2}{2 d}+\frac {(a+i a \tan (c+d x))^3}{3 d}+\left (4 a^3\right ) \int \tan (c+d x) \, dx \\ & = -4 i a^3 x-\frac {4 a^3 \log (\cos (c+d x))}{d}+\frac {2 i a^3 \tan (c+d x)}{d}+\frac {a (a+i a \tan (c+d x))^2}{2 d}+\frac {(a+i a \tan (c+d x))^3}{3 d} \\ \end{align*}
Time = 0.36 (sec) , antiderivative size = 57, normalized size of antiderivative = 0.67 \[ \int \tan (c+d x) (a+i a \tan (c+d x))^3 \, dx=\frac {a^3 \left (2+24 \log (i+\tan (c+d x))+24 i \tan (c+d x)-9 \tan ^2(c+d x)-2 i \tan ^3(c+d x)\right )}{6 d} \]
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Time = 0.20 (sec) , antiderivative size = 62, normalized size of antiderivative = 0.73
method | result | size |
derivativedivides | \(\frac {a^{3} \left (4 i \tan \left (d x +c \right )-\frac {i \left (\tan ^{3}\left (d x +c \right )\right )}{3}-\frac {3 \left (\tan ^{2}\left (d x +c \right )\right )}{2}+2 \ln \left (1+\tan ^{2}\left (d x +c \right )\right )-4 i \arctan \left (\tan \left (d x +c \right )\right )\right )}{d}\) | \(62\) |
default | \(\frac {a^{3} \left (4 i \tan \left (d x +c \right )-\frac {i \left (\tan ^{3}\left (d x +c \right )\right )}{3}-\frac {3 \left (\tan ^{2}\left (d x +c \right )\right )}{2}+2 \ln \left (1+\tan ^{2}\left (d x +c \right )\right )-4 i \arctan \left (\tan \left (d x +c \right )\right )\right )}{d}\) | \(62\) |
parallelrisch | \(\frac {-2 i a^{3} \left (\tan ^{3}\left (d x +c \right )\right )-24 i a^{3} x d +24 i a^{3} \tan \left (d x +c \right )-9 a^{3} \left (\tan ^{2}\left (d x +c \right )\right )+12 a^{3} \ln \left (1+\tan ^{2}\left (d x +c \right )\right )}{6 d}\) | \(70\) |
norman | \(-4 i a^{3} x -\frac {3 a^{3} \left (\tan ^{2}\left (d x +c \right )\right )}{2 d}+\frac {4 i a^{3} \tan \left (d x +c \right )}{d}-\frac {i a^{3} \left (\tan ^{3}\left (d x +c \right )\right )}{3 d}+\frac {2 a^{3} \ln \left (1+\tan ^{2}\left (d x +c \right )\right )}{d}\) | \(76\) |
risch | \(\frac {8 i a^{3} c}{d}-\frac {2 a^{3} \left (24 \,{\mathrm e}^{4 i \left (d x +c \right )}+33 \,{\mathrm e}^{2 i \left (d x +c \right )}+13\right )}{3 d \left ({\mathrm e}^{2 i \left (d x +c \right )}+1\right )^{3}}-\frac {4 a^{3} \ln \left ({\mathrm e}^{2 i \left (d x +c \right )}+1\right )}{d}\) | \(77\) |
parts | \(\frac {a^{3} \ln \left (1+\tan ^{2}\left (d x +c \right )\right )}{2 d}-\frac {i a^{3} \left (\frac {\left (\tan ^{3}\left (d x +c \right )\right )}{3}-\tan \left (d x +c \right )+\arctan \left (\tan \left (d x +c \right )\right )\right )}{d}+\frac {3 i a^{3} \left (\tan \left (d x +c \right )-\arctan \left (\tan \left (d x +c \right )\right )\right )}{d}-\frac {3 a^{3} \left (\frac {\left (\tan ^{2}\left (d x +c \right )\right )}{2}-\frac {\ln \left (1+\tan ^{2}\left (d x +c \right )\right )}{2}\right )}{d}\) | \(113\) |
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Time = 0.25 (sec) , antiderivative size = 134, normalized size of antiderivative = 1.58 \[ \int \tan (c+d x) (a+i a \tan (c+d x))^3 \, dx=-\frac {2 \, {\left (24 \, a^{3} e^{\left (4 i \, d x + 4 i \, c\right )} + 33 \, a^{3} e^{\left (2 i \, d x + 2 i \, c\right )} + 13 \, a^{3} + 6 \, {\left (a^{3} e^{\left (6 i \, d x + 6 i \, c\right )} + 3 \, a^{3} e^{\left (4 i \, d x + 4 i \, c\right )} + 3 \, a^{3} e^{\left (2 i \, d x + 2 i \, c\right )} + a^{3}\right )} \log \left (e^{\left (2 i \, d x + 2 i \, c\right )} + 1\right )\right )}}{3 \, {\left (d e^{\left (6 i \, d x + 6 i \, c\right )} + 3 \, d e^{\left (4 i \, d x + 4 i \, c\right )} + 3 \, d e^{\left (2 i \, d x + 2 i \, c\right )} + d\right )}} \]
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Time = 0.20 (sec) , antiderivative size = 131, normalized size of antiderivative = 1.54 \[ \int \tan (c+d x) (a+i a \tan (c+d x))^3 \, dx=- \frac {4 a^{3} \log {\left (e^{2 i d x} + e^{- 2 i c} \right )}}{d} + \frac {- 48 a^{3} e^{4 i c} e^{4 i d x} - 66 a^{3} e^{2 i c} e^{2 i d x} - 26 a^{3}}{3 d e^{6 i c} e^{6 i d x} + 9 d e^{4 i c} e^{4 i d x} + 9 d e^{2 i c} e^{2 i d x} + 3 d} \]
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Time = 0.29 (sec) , antiderivative size = 69, normalized size of antiderivative = 0.81 \[ \int \tan (c+d x) (a+i a \tan (c+d x))^3 \, dx=-\frac {2 i \, a^{3} \tan \left (d x + c\right )^{3} + 9 \, a^{3} \tan \left (d x + c\right )^{2} + 24 i \, {\left (d x + c\right )} a^{3} - 12 \, a^{3} \log \left (\tan \left (d x + c\right )^{2} + 1\right ) - 24 i \, a^{3} \tan \left (d x + c\right )}{6 \, d} \]
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Both result and optimal contain complex but leaf count of result is larger than twice the leaf count of optimal. 170 vs. \(2 (73) = 146\).
Time = 0.46 (sec) , antiderivative size = 170, normalized size of antiderivative = 2.00 \[ \int \tan (c+d x) (a+i a \tan (c+d x))^3 \, dx=-\frac {2 \, {\left (6 \, a^{3} e^{\left (6 i \, d x + 6 i \, c\right )} \log \left (e^{\left (2 i \, d x + 2 i \, c\right )} + 1\right ) + 18 \, a^{3} e^{\left (4 i \, d x + 4 i \, c\right )} \log \left (e^{\left (2 i \, d x + 2 i \, c\right )} + 1\right ) + 18 \, a^{3} e^{\left (2 i \, d x + 2 i \, c\right )} \log \left (e^{\left (2 i \, d x + 2 i \, c\right )} + 1\right ) + 24 \, a^{3} e^{\left (4 i \, d x + 4 i \, c\right )} + 33 \, a^{3} e^{\left (2 i \, d x + 2 i \, c\right )} + 6 \, a^{3} \log \left (e^{\left (2 i \, d x + 2 i \, c\right )} + 1\right ) + 13 \, a^{3}\right )}}{3 \, {\left (d e^{\left (6 i \, d x + 6 i \, c\right )} + 3 \, d e^{\left (4 i \, d x + 4 i \, c\right )} + 3 \, d e^{\left (2 i \, d x + 2 i \, c\right )} + d\right )}} \]
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Time = 4.12 (sec) , antiderivative size = 59, normalized size of antiderivative = 0.69 \[ \int \tan (c+d x) (a+i a \tan (c+d x))^3 \, dx=\frac {4\,a^3\,\ln \left (\mathrm {tan}\left (c+d\,x\right )+1{}\mathrm {i}\right )+a^3\,\mathrm {tan}\left (c+d\,x\right )\,4{}\mathrm {i}-\frac {3\,a^3\,{\mathrm {tan}\left (c+d\,x\right )}^2}{2}-\frac {a^3\,{\mathrm {tan}\left (c+d\,x\right )}^3\,1{}\mathrm {i}}{3}}{d} \]
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