Optimal. Leaf size=293 \[ -\frac {3 a b d^2 x}{2 c}+\frac {2 i b^2 d^2 x}{3 c}-\frac {1}{12} b^2 d^2 x^2-\frac {2 i b^2 d^2 \text {ArcTan}(c x)}{3 c^2}-\frac {3 b^2 d^2 x \text {ArcTan}(c x)}{2 c}-\frac {2}{3} i b d^2 x^2 (a+b \text {ArcTan}(c x))+\frac {1}{6} b c d^2 x^3 (a+b \text {ArcTan}(c x))+\frac {17 d^2 (a+b \text {ArcTan}(c x))^2}{12 c^2}+\frac {1}{2} d^2 x^2 (a+b \text {ArcTan}(c x))^2+\frac {2}{3} i c d^2 x^3 (a+b \text {ArcTan}(c x))^2-\frac {1}{4} c^2 d^2 x^4 (a+b \text {ArcTan}(c x))^2-\frac {4 i b d^2 (a+b \text {ArcTan}(c x)) \log \left (\frac {2}{1+i c x}\right )}{3 c^2}+\frac {5 b^2 d^2 \log \left (1+c^2 x^2\right )}{6 c^2}+\frac {2 b^2 d^2 \text {PolyLog}\left (2,1-\frac {2}{1+i c x}\right )}{3 c^2} \]
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Rubi [A]
time = 0.45, antiderivative size = 293, normalized size of antiderivative = 1.00, number
of steps used = 28, number of rules used = 14, integrand size = 23, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.609, Rules
used = {4996, 4946, 5036, 4930, 266, 5004, 327, 209, 5040, 4964, 2449, 2352, 272, 45}
\begin {gather*} -\frac {1}{4} c^2 d^2 x^4 (a+b \text {ArcTan}(c x))^2+\frac {17 d^2 (a+b \text {ArcTan}(c x))^2}{12 c^2}-\frac {4 i b d^2 \log \left (\frac {2}{1+i c x}\right ) (a+b \text {ArcTan}(c x))}{3 c^2}+\frac {2}{3} i c d^2 x^3 (a+b \text {ArcTan}(c x))^2+\frac {1}{6} b c d^2 x^3 (a+b \text {ArcTan}(c x))+\frac {1}{2} d^2 x^2 (a+b \text {ArcTan}(c x))^2-\frac {2}{3} i b d^2 x^2 (a+b \text {ArcTan}(c x))-\frac {3 a b d^2 x}{2 c}-\frac {2 i b^2 d^2 \text {ArcTan}(c x)}{3 c^2}-\frac {3 b^2 d^2 x \text {ArcTan}(c x)}{2 c}+\frac {2 b^2 d^2 \text {Li}_2\left (1-\frac {2}{i c x+1}\right )}{3 c^2}+\frac {5 b^2 d^2 \log \left (c^2 x^2+1\right )}{6 c^2}+\frac {2 i b^2 d^2 x}{3 c}-\frac {1}{12} b^2 d^2 x^2 \end {gather*}
Antiderivative was successfully verified.
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Rule 45
Rule 209
Rule 266
Rule 272
Rule 327
Rule 2352
Rule 2449
Rule 4930
Rule 4946
Rule 4964
Rule 4996
Rule 5004
Rule 5036
Rule 5040
Rubi steps
\begin {align*} \int x (d+i c d x)^2 \left (a+b \tan ^{-1}(c x)\right )^2 \, dx &=\int \left (d^2 x \left (a+b \tan ^{-1}(c x)\right )^2+2 i c d^2 x^2 \left (a+b \tan ^{-1}(c x)\right )^2-c^2 d^2 x^3 \left (a+b \tan ^{-1}(c x)\right )^2\right ) \, dx\\ &=d^2 \int x \left (a+b \tan ^{-1}(c x)\right )^2 \, dx+\left (2 i c d^2\right ) \int x^2 \left (a+b \tan ^{-1}(c x)\right )^2 \, dx-\left (c^2 d^2\right ) \int x^3 \left (a+b \tan ^{-1}(c x)\right )^2 \, dx\\ &=\frac {1}{2} d^2 x^2 \left (a+b \tan ^{-1}(c x)\right )^2+\frac {2}{3} i c d^2 x^3 \left (a+b \tan ^{-1}(c x)\right )^2-\frac {1}{4} c^2 d^2 x^4 \left (a+b \tan ^{-1}(c x)\right )^2-\left (b c d^2\right ) \int \frac {x^2 \left (a+b \tan ^{-1}(c x)\right )}{1+c^2 x^2} \, dx-\frac {1}{3} \left (4 i b c^2 d^2\right ) \int \frac {x^3 \left (a+b \tan ^{-1}(c x)\right )}{1+c^2 x^2} \, dx+\frac {1}{2} \left (b c^3 d^2\right ) \int \frac {x^4 \left (a+b \tan ^{-1}(c x)\right )}{1+c^2 x^2} \, dx\\ &=\frac {1}{2} d^2 x^2 \left (a+b \tan ^{-1}(c x)\right )^2+\frac {2}{3} i c d^2 x^3 \left (a+b \tan ^{-1}(c x)\right )^2-\frac {1}{4} c^2 d^2 x^4 \left (a+b \tan ^{-1}(c x)\right )^2-\frac {1}{3} \left (4 i b d^2\right ) \int x \left (a+b \tan ^{-1}(c x)\right ) \, dx+\frac {1}{3} \left (4 i b d^2\right ) \int \frac {x \left (a+b \tan ^{-1}(c x)\right )}{1+c^2 x^2} \, dx-\frac {\left (b d^2\right ) \int \left (a+b \tan ^{-1}(c x)\right ) \, dx}{c}+\frac {\left (b d^2\right ) \int \frac {a+b \tan ^{-1}(c x)}{1+c^2 x^2} \, dx}{c}+\frac {1}{2} \left (b c d^2\right ) \int x^2 \left (a+b \tan ^{-1}(c x)\right ) \, dx-\frac {1}{2} \left (b c d^2\right ) \int \frac {x^2 \left (a+b \tan ^{-1}(c x)\right )}{1+c^2 x^2} \, dx\\ &=-\frac {a b d^2 x}{c}-\frac {2}{3} i b d^2 x^2 \left (a+b \tan ^{-1}(c x)\right )+\frac {1}{6} b c d^2 x^3 \left (a+b \tan ^{-1}(c x)\right )+\frac {7 d^2 \left (a+b \tan ^{-1}(c x)\right )^2}{6 c^2}+\frac {1}{2} d^2 x^2 \left (a+b \tan ^{-1}(c x)\right )^2+\frac {2}{3} i c d^2 x^3 \left (a+b \tan ^{-1}(c x)\right )^2-\frac {1}{4} c^2 d^2 x^4 \left (a+b \tan ^{-1}(c x)\right )^2-\frac {\left (4 i b d^2\right ) \int \frac {a+b \tan ^{-1}(c x)}{i-c x} \, dx}{3 c}-\frac {\left (b d^2\right ) \int \left (a+b \tan ^{-1}(c x)\right ) \, dx}{2 c}+\frac {\left (b d^2\right ) \int \frac {a+b \tan ^{-1}(c x)}{1+c^2 x^2} \, dx}{2 c}-\frac {\left (b^2 d^2\right ) \int \tan ^{-1}(c x) \, dx}{c}+\frac {1}{3} \left (2 i b^2 c d^2\right ) \int \frac {x^2}{1+c^2 x^2} \, dx-\frac {1}{6} \left (b^2 c^2 d^2\right ) \int \frac {x^3}{1+c^2 x^2} \, dx\\ &=-\frac {3 a b d^2 x}{2 c}+\frac {2 i b^2 d^2 x}{3 c}-\frac {b^2 d^2 x \tan ^{-1}(c x)}{c}-\frac {2}{3} i b d^2 x^2 \left (a+b \tan ^{-1}(c x)\right )+\frac {1}{6} b c d^2 x^3 \left (a+b \tan ^{-1}(c x)\right )+\frac {17 d^2 \left (a+b \tan ^{-1}(c x)\right )^2}{12 c^2}+\frac {1}{2} d^2 x^2 \left (a+b \tan ^{-1}(c x)\right )^2+\frac {2}{3} i c d^2 x^3 \left (a+b \tan ^{-1}(c x)\right )^2-\frac {1}{4} c^2 d^2 x^4 \left (a+b \tan ^{-1}(c x)\right )^2-\frac {4 i b d^2 \left (a+b \tan ^{-1}(c x)\right ) \log \left (\frac {2}{1+i c x}\right )}{3 c^2}+\left (b^2 d^2\right ) \int \frac {x}{1+c^2 x^2} \, dx-\frac {\left (2 i b^2 d^2\right ) \int \frac {1}{1+c^2 x^2} \, dx}{3 c}+\frac {\left (4 i b^2 d^2\right ) \int \frac {\log \left (\frac {2}{1+i c x}\right )}{1+c^2 x^2} \, dx}{3 c}-\frac {\left (b^2 d^2\right ) \int \tan ^{-1}(c x) \, dx}{2 c}-\frac {1}{12} \left (b^2 c^2 d^2\right ) \text {Subst}\left (\int \frac {x}{1+c^2 x} \, dx,x,x^2\right )\\ &=-\frac {3 a b d^2 x}{2 c}+\frac {2 i b^2 d^2 x}{3 c}-\frac {2 i b^2 d^2 \tan ^{-1}(c x)}{3 c^2}-\frac {3 b^2 d^2 x \tan ^{-1}(c x)}{2 c}-\frac {2}{3} i b d^2 x^2 \left (a+b \tan ^{-1}(c x)\right )+\frac {1}{6} b c d^2 x^3 \left (a+b \tan ^{-1}(c x)\right )+\frac {17 d^2 \left (a+b \tan ^{-1}(c x)\right )^2}{12 c^2}+\frac {1}{2} d^2 x^2 \left (a+b \tan ^{-1}(c x)\right )^2+\frac {2}{3} i c d^2 x^3 \left (a+b \tan ^{-1}(c x)\right )^2-\frac {1}{4} c^2 d^2 x^4 \left (a+b \tan ^{-1}(c x)\right )^2-\frac {4 i b d^2 \left (a+b \tan ^{-1}(c x)\right ) \log \left (\frac {2}{1+i c x}\right )}{3 c^2}+\frac {b^2 d^2 \log \left (1+c^2 x^2\right )}{2 c^2}+\frac {1}{2} \left (b^2 d^2\right ) \int \frac {x}{1+c^2 x^2} \, dx+\frac {\left (4 b^2 d^2\right ) \text {Subst}\left (\int \frac {\log (2 x)}{1-2 x} \, dx,x,\frac {1}{1+i c x}\right )}{3 c^2}-\frac {1}{12} \left (b^2 c^2 d^2\right ) \text {Subst}\left (\int \left (\frac {1}{c^2}-\frac {1}{c^2 \left (1+c^2 x\right )}\right ) \, dx,x,x^2\right )\\ &=-\frac {3 a b d^2 x}{2 c}+\frac {2 i b^2 d^2 x}{3 c}-\frac {1}{12} b^2 d^2 x^2-\frac {2 i b^2 d^2 \tan ^{-1}(c x)}{3 c^2}-\frac {3 b^2 d^2 x \tan ^{-1}(c x)}{2 c}-\frac {2}{3} i b d^2 x^2 \left (a+b \tan ^{-1}(c x)\right )+\frac {1}{6} b c d^2 x^3 \left (a+b \tan ^{-1}(c x)\right )+\frac {17 d^2 \left (a+b \tan ^{-1}(c x)\right )^2}{12 c^2}+\frac {1}{2} d^2 x^2 \left (a+b \tan ^{-1}(c x)\right )^2+\frac {2}{3} i c d^2 x^3 \left (a+b \tan ^{-1}(c x)\right )^2-\frac {1}{4} c^2 d^2 x^4 \left (a+b \tan ^{-1}(c x)\right )^2-\frac {4 i b d^2 \left (a+b \tan ^{-1}(c x)\right ) \log \left (\frac {2}{1+i c x}\right )}{3 c^2}+\frac {5 b^2 d^2 \log \left (1+c^2 x^2\right )}{6 c^2}+\frac {2 b^2 d^2 \text {Li}_2\left (1-\frac {2}{1+i c x}\right )}{3 c^2}\\ \end {align*}
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Mathematica [A]
time = 0.43, size = 257, normalized size = 0.88 \begin {gather*} -\frac {d^2 \left (b^2+18 a b c x-8 i b^2 c x-6 a^2 c^2 x^2+8 i a b c^2 x^2+b^2 c^2 x^2-8 i a^2 c^3 x^3-2 a b c^3 x^3+3 a^2 c^4 x^4+b^2 (-i+c x)^3 (i+3 c x) \text {ArcTan}(c x)^2+2 b \text {ArcTan}(c x) \left (b \left (4 i+9 c x+4 i c^2 x^2-c^3 x^3\right )+a \left (-9-6 c^2 x^2-8 i c^3 x^3+3 c^4 x^4\right )+8 i b \log \left (1+e^{2 i \text {ArcTan}(c x)}\right )\right )-8 i a b \log \left (1+c^2 x^2\right )-10 b^2 \log \left (1+c^2 x^2\right )+8 b^2 \text {PolyLog}\left (2,-e^{2 i \text {ArcTan}(c x)}\right )\right )}{12 c^2} \end {gather*}
Antiderivative was successfully verified.
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Maple [B] Both result and optimal contain complex but leaf count of result is larger than twice
the leaf count of optimal. 529 vs. \(2 (258 ) = 516\).
time = 0.25, size = 530, normalized size = 1.81 Too large to display
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {Failed to integrate} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {could not integrate} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F(-1)] Timed out
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {Timed out} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {could not integrate} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [F]
time = 0.00, size = -1, normalized size = -0.00 \begin {gather*} \int x\,{\left (a+b\,\mathrm {atan}\left (c\,x\right )\right )}^2\,{\left (d+c\,d\,x\,1{}\mathrm {i}\right )}^2 \,d x \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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