Optimal. Leaf size=250 \[ -\frac {a^2 c^3}{3 x}+\frac {1}{3} a^4 c^3 x-\frac {2}{3} a^3 c^3 \text {ArcTan}(a x)-\frac {a c^3 \text {ArcTan}(a x)}{3 x^2}-\frac {1}{3} a^5 c^3 x^2 \text {ArcTan}(a x)-\frac {c^3 \text {ArcTan}(a x)^2}{3 x^3}-\frac {3 a^2 c^3 \text {ArcTan}(a x)^2}{x}+3 a^4 c^3 x \text {ArcTan}(a x)^2+\frac {1}{3} a^6 c^3 x^3 \text {ArcTan}(a x)^2+\frac {16}{3} a^3 c^3 \text {ArcTan}(a x) \log \left (\frac {2}{1+i a x}\right )+\frac {16}{3} a^3 c^3 \text {ArcTan}(a x) \log \left (2-\frac {2}{1-i a x}\right )-\frac {8}{3} i a^3 c^3 \text {PolyLog}\left (2,-1+\frac {2}{1-i a x}\right )+\frac {8}{3} i a^3 c^3 \text {PolyLog}\left (2,1-\frac {2}{1+i a x}\right ) \]
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Rubi [A]
time = 0.45, antiderivative size = 250, normalized size of antiderivative = 1.00, number of steps
used = 28, number of rules used = 15, integrand size = 22, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.682, Rules used =
{5068, 4930, 5040, 4964, 2449, 2352, 4946, 5038, 331, 209, 5044, 4988, 2497, 5036, 327}
\begin {gather*} \frac {1}{3} a^6 c^3 x^3 \text {ArcTan}(a x)^2-\frac {1}{3} a^5 c^3 x^2 \text {ArcTan}(a x)+3 a^4 c^3 x \text {ArcTan}(a x)^2+\frac {1}{3} a^4 c^3 x-\frac {2}{3} a^3 c^3 \text {ArcTan}(a x)+\frac {16}{3} a^3 c^3 \text {ArcTan}(a x) \log \left (\frac {2}{1+i a x}\right )+\frac {16}{3} a^3 c^3 \text {ArcTan}(a x) \log \left (2-\frac {2}{1-i a x}\right )-\frac {8}{3} i a^3 c^3 \text {Li}_2\left (\frac {2}{1-i a x}-1\right )+\frac {8}{3} i a^3 c^3 \text {Li}_2\left (1-\frac {2}{i a x+1}\right )-\frac {3 a^2 c^3 \text {ArcTan}(a x)^2}{x}-\frac {a^2 c^3}{3 x}-\frac {c^3 \text {ArcTan}(a x)^2}{3 x^3}-\frac {a c^3 \text {ArcTan}(a x)}{3 x^2} \end {gather*}
Antiderivative was successfully verified.
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Rule 209
Rule 327
Rule 331
Rule 2352
Rule 2449
Rule 2497
Rule 4930
Rule 4946
Rule 4964
Rule 4988
Rule 5036
Rule 5038
Rule 5040
Rule 5044
Rule 5068
Rubi steps
\begin {align*} \int \frac {\left (c+a^2 c x^2\right )^3 \tan ^{-1}(a x)^2}{x^4} \, dx &=\int \left (3 a^4 c^3 \tan ^{-1}(a x)^2+\frac {c^3 \tan ^{-1}(a x)^2}{x^4}+\frac {3 a^2 c^3 \tan ^{-1}(a x)^2}{x^2}+a^6 c^3 x^2 \tan ^{-1}(a x)^2\right ) \, dx\\ &=c^3 \int \frac {\tan ^{-1}(a x)^2}{x^4} \, dx+\left (3 a^2 c^3\right ) \int \frac {\tan ^{-1}(a x)^2}{x^2} \, dx+\left (3 a^4 c^3\right ) \int \tan ^{-1}(a x)^2 \, dx+\left (a^6 c^3\right ) \int x^2 \tan ^{-1}(a x)^2 \, dx\\ &=-\frac {c^3 \tan ^{-1}(a x)^2}{3 x^3}-\frac {3 a^2 c^3 \tan ^{-1}(a x)^2}{x}+3 a^4 c^3 x \tan ^{-1}(a x)^2+\frac {1}{3} a^6 c^3 x^3 \tan ^{-1}(a x)^2+\frac {1}{3} \left (2 a c^3\right ) \int \frac {\tan ^{-1}(a x)}{x^3 \left (1+a^2 x^2\right )} \, dx+\left (6 a^3 c^3\right ) \int \frac {\tan ^{-1}(a x)}{x \left (1+a^2 x^2\right )} \, dx-\left (6 a^5 c^3\right ) \int \frac {x \tan ^{-1}(a x)}{1+a^2 x^2} \, dx-\frac {1}{3} \left (2 a^7 c^3\right ) \int \frac {x^3 \tan ^{-1}(a x)}{1+a^2 x^2} \, dx\\ &=-\frac {c^3 \tan ^{-1}(a x)^2}{3 x^3}-\frac {3 a^2 c^3 \tan ^{-1}(a x)^2}{x}+3 a^4 c^3 x \tan ^{-1}(a x)^2+\frac {1}{3} a^6 c^3 x^3 \tan ^{-1}(a x)^2+\frac {1}{3} \left (2 a c^3\right ) \int \frac {\tan ^{-1}(a x)}{x^3} \, dx+\left (6 i a^3 c^3\right ) \int \frac {\tan ^{-1}(a x)}{x (i+a x)} \, dx-\frac {1}{3} \left (2 a^3 c^3\right ) \int \frac {\tan ^{-1}(a x)}{x \left (1+a^2 x^2\right )} \, dx+\left (6 a^4 c^3\right ) \int \frac {\tan ^{-1}(a x)}{i-a x} \, dx-\frac {1}{3} \left (2 a^5 c^3\right ) \int x \tan ^{-1}(a x) \, dx+\frac {1}{3} \left (2 a^5 c^3\right ) \int \frac {x \tan ^{-1}(a x)}{1+a^2 x^2} \, dx\\ &=-\frac {a c^3 \tan ^{-1}(a x)}{3 x^2}-\frac {1}{3} a^5 c^3 x^2 \tan ^{-1}(a x)-\frac {c^3 \tan ^{-1}(a x)^2}{3 x^3}-\frac {3 a^2 c^3 \tan ^{-1}(a x)^2}{x}+3 a^4 c^3 x \tan ^{-1}(a x)^2+\frac {1}{3} a^6 c^3 x^3 \tan ^{-1}(a x)^2+6 a^3 c^3 \tan ^{-1}(a x) \log \left (\frac {2}{1+i a x}\right )+6 a^3 c^3 \tan ^{-1}(a x) \log \left (2-\frac {2}{1-i a x}\right )+\frac {1}{3} \left (a^2 c^3\right ) \int \frac {1}{x^2 \left (1+a^2 x^2\right )} \, dx-\frac {1}{3} \left (2 i a^3 c^3\right ) \int \frac {\tan ^{-1}(a x)}{x (i+a x)} \, dx-\frac {1}{3} \left (2 a^4 c^3\right ) \int \frac {\tan ^{-1}(a x)}{i-a x} \, dx-\left (6 a^4 c^3\right ) \int \frac {\log \left (\frac {2}{1+i a x}\right )}{1+a^2 x^2} \, dx-\left (6 a^4 c^3\right ) \int \frac {\log \left (2-\frac {2}{1-i a x}\right )}{1+a^2 x^2} \, dx+\frac {1}{3} \left (a^6 c^3\right ) \int \frac {x^2}{1+a^2 x^2} \, dx\\ &=-\frac {a^2 c^3}{3 x}+\frac {1}{3} a^4 c^3 x-\frac {a c^3 \tan ^{-1}(a x)}{3 x^2}-\frac {1}{3} a^5 c^3 x^2 \tan ^{-1}(a x)-\frac {c^3 \tan ^{-1}(a x)^2}{3 x^3}-\frac {3 a^2 c^3 \tan ^{-1}(a x)^2}{x}+3 a^4 c^3 x \tan ^{-1}(a x)^2+\frac {1}{3} a^6 c^3 x^3 \tan ^{-1}(a x)^2+\frac {16}{3} a^3 c^3 \tan ^{-1}(a x) \log \left (\frac {2}{1+i a x}\right )+\frac {16}{3} a^3 c^3 \tan ^{-1}(a x) \log \left (2-\frac {2}{1-i a x}\right )-3 i a^3 c^3 \text {Li}_2\left (-1+\frac {2}{1-i a x}\right )+\left (6 i a^3 c^3\right ) \text {Subst}\left (\int \frac {\log (2 x)}{1-2 x} \, dx,x,\frac {1}{1+i a x}\right )-2 \left (\frac {1}{3} \left (a^4 c^3\right ) \int \frac {1}{1+a^2 x^2} \, dx\right )+\frac {1}{3} \left (2 a^4 c^3\right ) \int \frac {\log \left (\frac {2}{1+i a x}\right )}{1+a^2 x^2} \, dx+\frac {1}{3} \left (2 a^4 c^3\right ) \int \frac {\log \left (2-\frac {2}{1-i a x}\right )}{1+a^2 x^2} \, dx\\ &=-\frac {a^2 c^3}{3 x}+\frac {1}{3} a^4 c^3 x-\frac {2}{3} a^3 c^3 \tan ^{-1}(a x)-\frac {a c^3 \tan ^{-1}(a x)}{3 x^2}-\frac {1}{3} a^5 c^3 x^2 \tan ^{-1}(a x)-\frac {c^3 \tan ^{-1}(a x)^2}{3 x^3}-\frac {3 a^2 c^3 \tan ^{-1}(a x)^2}{x}+3 a^4 c^3 x \tan ^{-1}(a x)^2+\frac {1}{3} a^6 c^3 x^3 \tan ^{-1}(a x)^2+\frac {16}{3} a^3 c^3 \tan ^{-1}(a x) \log \left (\frac {2}{1+i a x}\right )+\frac {16}{3} a^3 c^3 \tan ^{-1}(a x) \log \left (2-\frac {2}{1-i a x}\right )-\frac {8}{3} i a^3 c^3 \text {Li}_2\left (-1+\frac {2}{1-i a x}\right )+3 i a^3 c^3 \text {Li}_2\left (1-\frac {2}{1+i a x}\right )-\frac {1}{3} \left (2 i a^3 c^3\right ) \text {Subst}\left (\int \frac {\log (2 x)}{1-2 x} \, dx,x,\frac {1}{1+i a x}\right )\\ &=-\frac {a^2 c^3}{3 x}+\frac {1}{3} a^4 c^3 x-\frac {2}{3} a^3 c^3 \tan ^{-1}(a x)-\frac {a c^3 \tan ^{-1}(a x)}{3 x^2}-\frac {1}{3} a^5 c^3 x^2 \tan ^{-1}(a x)-\frac {c^3 \tan ^{-1}(a x)^2}{3 x^3}-\frac {3 a^2 c^3 \tan ^{-1}(a x)^2}{x}+3 a^4 c^3 x \tan ^{-1}(a x)^2+\frac {1}{3} a^6 c^3 x^3 \tan ^{-1}(a x)^2+\frac {16}{3} a^3 c^3 \tan ^{-1}(a x) \log \left (\frac {2}{1+i a x}\right )+\frac {16}{3} a^3 c^3 \tan ^{-1}(a x) \log \left (2-\frac {2}{1-i a x}\right )-\frac {8}{3} i a^3 c^3 \text {Li}_2\left (-1+\frac {2}{1-i a x}\right )+\frac {8}{3} i a^3 c^3 \text {Li}_2\left (1-\frac {2}{1+i a x}\right )\\ \end {align*}
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Mathematica [A]
time = 0.42, size = 221, normalized size = 0.88 \begin {gather*} \frac {c^3 \left (-a^2 x^2+a^4 x^4-a x \text {ArcTan}(a x)-2 a^3 x^3 \text {ArcTan}(a x)-a^5 x^5 \text {ArcTan}(a x)-\text {ArcTan}(a x)^2-9 a^2 x^2 \text {ArcTan}(a x)^2-16 i a^3 x^3 \text {ArcTan}(a x)^2+9 a^4 x^4 \text {ArcTan}(a x)^2+a^6 x^6 \text {ArcTan}(a x)^2+16 a^3 x^3 \text {ArcTan}(a x) \log \left (1-e^{2 i \text {ArcTan}(a x)}\right )+16 a^3 x^3 \text {ArcTan}(a x) \log \left (1+e^{2 i \text {ArcTan}(a x)}\right )-8 i a^3 x^3 \text {PolyLog}\left (2,-e^{2 i \text {ArcTan}(a x)}\right )-8 i a^3 x^3 \text {PolyLog}\left (2,e^{2 i \text {ArcTan}(a x)}\right )\right )}{3 x^3} \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.33, size = 324, normalized size = 1.30
method | result | size |
derivativedivides | \(a^{3} \left (\frac {a^{3} c^{3} x^{3} \arctan \left (a x \right )^{2}}{3}+3 a \,c^{3} x \arctan \left (a x \right )^{2}-\frac {3 c^{3} \arctan \left (a x \right )^{2}}{a x}-\frac {c^{3} \arctan \left (a x \right )^{2}}{3 a^{3} x^{3}}-\frac {2 c^{3} \left (\frac {\arctan \left (a x \right ) a^{2} x^{2}}{2}+8 \arctan \left (a x \right ) \ln \left (a^{2} x^{2}+1\right )+\frac {\arctan \left (a x \right )}{2 a^{2} x^{2}}-8 \arctan \left (a x \right ) \ln \left (a x \right )-\frac {a x}{2}+\frac {1}{2 a x}+\arctan \left (a x \right )+4 i \dilog \left (\frac {i \left (a x -i\right )}{2}\right )-4 i \ln \left (a x -i\right ) \ln \left (-\frac {i \left (a x +i\right )}{2}\right )-4 i \ln \left (a x +i\right ) \ln \left (a^{2} x^{2}+1\right )+4 i \dilog \left (-i a x +1\right )-4 i \ln \left (a x \right ) \ln \left (i a x +1\right )+4 i \ln \left (a x -i\right ) \ln \left (a^{2} x^{2}+1\right )-4 i \dilog \left (i a x +1\right )+2 i \ln \left (a x +i\right )^{2}-2 i \ln \left (a x -i\right )^{2}-4 i \dilog \left (-\frac {i \left (a x +i\right )}{2}\right )+4 i \ln \left (a x \right ) \ln \left (-i a x +1\right )+4 i \ln \left (a x +i\right ) \ln \left (\frac {i \left (a x -i\right )}{2}\right )\right )}{3}\right )\) | \(324\) |
default | \(a^{3} \left (\frac {a^{3} c^{3} x^{3} \arctan \left (a x \right )^{2}}{3}+3 a \,c^{3} x \arctan \left (a x \right )^{2}-\frac {3 c^{3} \arctan \left (a x \right )^{2}}{a x}-\frac {c^{3} \arctan \left (a x \right )^{2}}{3 a^{3} x^{3}}-\frac {2 c^{3} \left (\frac {\arctan \left (a x \right ) a^{2} x^{2}}{2}+8 \arctan \left (a x \right ) \ln \left (a^{2} x^{2}+1\right )+\frac {\arctan \left (a x \right )}{2 a^{2} x^{2}}-8 \arctan \left (a x \right ) \ln \left (a x \right )-\frac {a x}{2}+\frac {1}{2 a x}+\arctan \left (a x \right )+4 i \dilog \left (\frac {i \left (a x -i\right )}{2}\right )-4 i \ln \left (a x -i\right ) \ln \left (-\frac {i \left (a x +i\right )}{2}\right )-4 i \ln \left (a x +i\right ) \ln \left (a^{2} x^{2}+1\right )+4 i \dilog \left (-i a x +1\right )-4 i \ln \left (a x \right ) \ln \left (i a x +1\right )+4 i \ln \left (a x -i\right ) \ln \left (a^{2} x^{2}+1\right )-4 i \dilog \left (i a x +1\right )+2 i \ln \left (a x +i\right )^{2}-2 i \ln \left (a x -i\right )^{2}-4 i \dilog \left (-\frac {i \left (a x +i\right )}{2}\right )+4 i \ln \left (a x \right ) \ln \left (-i a x +1\right )+4 i \ln \left (a x +i\right ) \ln \left (\frac {i \left (a x -i\right )}{2}\right )\right )}{3}\right )\) | \(324\) |
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]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} c^{3} \left (\int 3 a^{4} \operatorname {atan}^{2}{\left (a x \right )}\, dx + \int \frac {\operatorname {atan}^{2}{\left (a x \right )}}{x^{4}}\, dx + \int \frac {3 a^{2} \operatorname {atan}^{2}{\left (a x \right )}}{x^{2}}\, dx + \int a^{6} x^{2} \operatorname {atan}^{2}{\left (a x \right )}\, dx\right ) \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 \frac {{\mathrm {atan}\left (a\,x\right )}^2\,{\left (c\,a^2\,x^2+c\right )}^3}{x^4} \,d x \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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