Integrand size = 21, antiderivative size = 110 \[ \int \frac {x (a+b \arctan (c x))}{d+i c d x} \, dx=-\frac {i a x}{c d}-\frac {i b x \arctan (c x)}{c d}-\frac {(a+b \arctan (c x)) \log \left (\frac {2}{1+i c x}\right )}{c^2 d}+\frac {i b \log \left (1+c^2 x^2\right )}{2 c^2 d}-\frac {i b \operatorname {PolyLog}\left (2,1-\frac {2}{1+i c x}\right )}{2 c^2 d} \]
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Time = 0.08 (sec) , antiderivative size = 110, normalized size of antiderivative = 1.00, number of steps used = 7, number of rules used = 6, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.286, Rules used = {4986, 4930, 266, 4964, 2449, 2352} \[ \int \frac {x (a+b \arctan (c x))}{d+i c d x} \, dx=-\frac {\log \left (\frac {2}{1+i c x}\right ) (a+b \arctan (c x))}{c^2 d}-\frac {i a x}{c d}-\frac {i b x \arctan (c x)}{c d}-\frac {i b \operatorname {PolyLog}\left (2,1-\frac {2}{i c x+1}\right )}{2 c^2 d}+\frac {i b \log \left (c^2 x^2+1\right )}{2 c^2 d} \]
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Rule 266
Rule 2352
Rule 2449
Rule 4930
Rule 4964
Rule 4986
Rubi steps \begin{align*} \text {integral}& = \frac {i \int \frac {a+b \arctan (c x)}{d+i c d x} \, dx}{c}-\frac {i \int (a+b \arctan (c x)) \, dx}{c d} \\ & = -\frac {i a x}{c d}-\frac {(a+b \arctan (c x)) \log \left (\frac {2}{1+i c x}\right )}{c^2 d}-\frac {(i b) \int \arctan (c x) \, dx}{c d}+\frac {b \int \frac {\log \left (\frac {2}{1+i c x}\right )}{1+c^2 x^2} \, dx}{c d} \\ & = -\frac {i a x}{c d}-\frac {i b x \arctan (c x)}{c d}-\frac {(a+b \arctan (c x)) \log \left (\frac {2}{1+i c x}\right )}{c^2 d}+\frac {(i b) \int \frac {x}{1+c^2 x^2} \, dx}{d}-\frac {(i b) \text {Subst}\left (\int \frac {\log (2 x)}{1-2 x} \, dx,x,\frac {1}{1+i c x}\right )}{c^2 d} \\ & = -\frac {i a x}{c d}-\frac {i b x \arctan (c x)}{c d}-\frac {(a+b \arctan (c x)) \log \left (\frac {2}{1+i c x}\right )}{c^2 d}+\frac {i b \log \left (1+c^2 x^2\right )}{2 c^2 d}-\frac {i b \operatorname {PolyLog}\left (2,1-\frac {2}{1+i c x}\right )}{2 c^2 d} \\ \end{align*}
Time = 0.25 (sec) , antiderivative size = 108, normalized size of antiderivative = 0.98 \[ \int \frac {x (a+b \arctan (c x))}{d+i c d x} \, dx=\frac {-2 i a c x+2 i b \arctan (c x)^2+2 i \arctan (c x) \left (a-b c x+i b \log \left (1+e^{2 i \arctan (c x)}\right )\right )+a \log \left (1+c^2 x^2\right )+i b \log \left (1+c^2 x^2\right )+i b \operatorname {PolyLog}\left (2,-e^{2 i \arctan (c x)}\right )}{2 c^2 d} \]
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Both result and optimal contain complex but leaf count of result is larger than twice the leaf count of optimal. 213 vs. \(2 (100 ) = 200\).
Time = 1.07 (sec) , antiderivative size = 214, normalized size of antiderivative = 1.95
method | result | size |
derivativedivides | \(\frac {-\frac {i a c x}{d}+\frac {a \ln \left (c^{2} x^{2}+1\right )}{2 d}+\frac {i a \arctan \left (c x \right )}{d}-\frac {i b \arctan \left (c x \right ) c x}{d}+\frac {b \arctan \left (c x \right ) \ln \left (c x -i\right )}{d}-\frac {i b \ln \left (-\frac {i \left (c x +i\right )}{2}\right ) \ln \left (c x -i\right )}{2 d}-\frac {i b \operatorname {dilog}\left (-\frac {i \left (c x +i\right )}{2}\right )}{2 d}+\frac {i b \ln \left (c x -i\right )^{2}}{4 d}+\frac {i b \ln \left (c^{8} x^{8}+12 c^{6} x^{6}+30 c^{4} x^{4}+28 c^{2} x^{2}+9\right )}{8 d}-\frac {b \arctan \left (\frac {1}{12} c^{3} x^{3}+\frac {13}{12} c x \right )}{4 d}-\frac {b \arctan \left (\frac {c x}{4}\right )}{4 d}+\frac {b \arctan \left (\frac {c x}{2}-\frac {i}{2}\right )}{2 d}}{c^{2}}\) | \(214\) |
default | \(\frac {-\frac {i a c x}{d}+\frac {a \ln \left (c^{2} x^{2}+1\right )}{2 d}+\frac {i a \arctan \left (c x \right )}{d}-\frac {i b \arctan \left (c x \right ) c x}{d}+\frac {b \arctan \left (c x \right ) \ln \left (c x -i\right )}{d}-\frac {i b \ln \left (-\frac {i \left (c x +i\right )}{2}\right ) \ln \left (c x -i\right )}{2 d}-\frac {i b \operatorname {dilog}\left (-\frac {i \left (c x +i\right )}{2}\right )}{2 d}+\frac {i b \ln \left (c x -i\right )^{2}}{4 d}+\frac {i b \ln \left (c^{8} x^{8}+12 c^{6} x^{6}+30 c^{4} x^{4}+28 c^{2} x^{2}+9\right )}{8 d}-\frac {b \arctan \left (\frac {1}{12} c^{3} x^{3}+\frac {13}{12} c x \right )}{4 d}-\frac {b \arctan \left (\frac {c x}{4}\right )}{4 d}+\frac {b \arctan \left (\frac {c x}{2}-\frac {i}{2}\right )}{2 d}}{c^{2}}\) | \(214\) |
risch | \(-\frac {i b \operatorname {dilog}\left (\frac {1}{2}-\frac {i c x}{2}\right )}{2 d \,c^{2}}-\frac {b x \ln \left (i c x +1\right )}{2 c d}+\frac {i \ln \left (-i c x +1\right ) b}{2 d \,c^{2}}-\frac {b \arctan \left (c x \right )}{2 d \,c^{2}}+\frac {b x \ln \left (-i c x +1\right )}{2 d c}+\frac {a \ln \left (c^{2} x^{2}+1\right )}{2 d \,c^{2}}+\frac {i b \ln \left (c^{2} x^{2}+1\right )}{4 d \,c^{2}}+\frac {i b \ln \left (\frac {1}{2}+\frac {i c x}{2}\right ) \ln \left (-i c x +1\right )}{2 d \,c^{2}}-\frac {i a x}{c d}-\frac {i b}{2 c^{2} d}+\frac {a}{d \,c^{2}}-\frac {i b \ln \left (\frac {1}{2}+\frac {i c x}{2}\right ) \ln \left (\frac {1}{2}-\frac {i c x}{2}\right )}{2 d \,c^{2}}+\frac {i a \arctan \left (c x \right )}{d \,c^{2}}-\frac {i b \ln \left (i c x +1\right )^{2}}{4 c^{2} d}\) | \(241\) |
parts | \(-\frac {i a x}{c d}+\frac {a \ln \left (c^{2} x^{2}+1\right )}{2 d \,c^{2}}+\frac {i a \arctan \left (c x \right )}{d \,c^{2}}-\frac {i b x \arctan \left (c x \right )}{c d}+\frac {b \arctan \left (c x \right ) \ln \left (c x -i\right )}{c^{2} d}-\frac {i b \ln \left (c x -i\right ) \ln \left (-\frac {i \left (c x +i\right )}{2}\right )}{2 c^{2} d}-\frac {i b \operatorname {dilog}\left (-\frac {i \left (c x +i\right )}{2}\right )}{2 c^{2} d}+\frac {i b \ln \left (c x -i\right )^{2}}{4 c^{2} d}+\frac {i b \ln \left (c^{8} x^{8}+12 c^{6} x^{6}+30 c^{4} x^{4}+28 c^{2} x^{2}+9\right )}{8 c^{2} d}-\frac {b \arctan \left (\frac {1}{12} c^{3} x^{3}+\frac {13}{12} c x \right )}{4 c^{2} d}-\frac {b \arctan \left (\frac {c x}{4}\right )}{4 c^{2} d}+\frac {b \arctan \left (\frac {c x}{2}-\frac {i}{2}\right )}{2 c^{2} d}\) | \(244\) |
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\[ \int \frac {x (a+b \arctan (c x))}{d+i c d x} \, dx=\int { \frac {{\left (b \arctan \left (c x\right ) + a\right )} x}{i \, c d x + d} \,d x } \]
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\[ \int \frac {x (a+b \arctan (c x))}{d+i c d x} \, dx=- \frac {i \left (\int \left (- \frac {i b \log {\left (i c x + 1 \right )}}{c^{2} x^{2} + 1}\right )\, dx + \int \frac {2 a c^{2} x^{2}}{c^{2} x^{2} + 1}\, dx + \int \left (- \frac {b c x}{c^{2} x^{2} + 1}\right )\, dx + \int \frac {2 i a c x}{c^{2} x^{2} + 1}\, dx + \int \left (- \frac {i b c^{2} x^{2}}{c^{2} x^{2} + 1}\right )\, dx + \int \frac {2 b c x \log {\left (i c x + 1 \right )}}{c^{2} x^{2} + 1}\, dx + \int \left (- \frac {i b c^{2} x^{2} \log {\left (i c x + 1 \right )}}{c^{2} x^{2} + 1}\right )\, dx\right )}{2 c d} + \frac {\left (b c x + i b \log {\left (i c x + 1 \right )}\right ) \log {\left (- i c x + 1 \right )}}{2 c^{2} d} \]
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\[ \int \frac {x (a+b \arctan (c x))}{d+i c d x} \, dx=\int { \frac {{\left (b \arctan \left (c x\right ) + a\right )} x}{i \, c d x + d} \,d x } \]
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\[ \int \frac {x (a+b \arctan (c x))}{d+i c d x} \, dx=\int { \frac {{\left (b \arctan \left (c x\right ) + a\right )} x}{i \, c d x + d} \,d x } \]
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Timed out. \[ \int \frac {x (a+b \arctan (c x))}{d+i c d x} \, dx=\int \frac {x\,\left (a+b\,\mathrm {atan}\left (c\,x\right )\right )}{d+c\,d\,x\,1{}\mathrm {i}} \,d x \]
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