Optimal. Leaf size=162 \[ -\frac {(a+b \text {ArcTan}(c+d x)) \log \left (\frac {2}{1-i (c+d x)}\right )}{f}+\frac {(a+b \text {ArcTan}(c+d x)) \log \left (\frac {2 d (e+f x)}{(d e+i f-c f) (1-i (c+d x))}\right )}{f}+\frac {i b \text {PolyLog}\left (2,1-\frac {2}{1-i (c+d x)}\right )}{2 f}-\frac {i b \text {PolyLog}\left (2,1-\frac {2 d (e+f x)}{(d e+i f-c f) (1-i (c+d x))}\right )}{2 f} \]
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Rubi [A]
time = 0.12, antiderivative size = 162, normalized size of antiderivative = 1.00, number of steps
used = 5, number of rules used = 5, integrand size = 18, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.278, Rules used = {5155, 4966,
2449, 2352, 2497} \begin {gather*} \frac {(a+b \text {ArcTan}(c+d x)) \log \left (\frac {2 d (e+f x)}{(1-i (c+d x)) (-c f+d e+i f)}\right )}{f}-\frac {\log \left (\frac {2}{1-i (c+d x)}\right ) (a+b \text {ArcTan}(c+d x))}{f}-\frac {i b \text {Li}_2\left (1-\frac {2 d (e+f x)}{(d e-c f+i f) (1-i (c+d x))}\right )}{2 f}+\frac {i b \text {Li}_2\left (1-\frac {2}{1-i (c+d x)}\right )}{2 f} \end {gather*}
Antiderivative was successfully verified.
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Rule 2352
Rule 2449
Rule 2497
Rule 4966
Rule 5155
Rubi steps
\begin {align*} \int \frac {a+b \tan ^{-1}(c+d x)}{e+f x} \, dx &=\frac {\text {Subst}\left (\int \frac {a+b \tan ^{-1}(x)}{\frac {d e-c f}{d}+\frac {f x}{d}} \, dx,x,c+d x\right )}{d}\\ &=-\frac {\left (a+b \tan ^{-1}(c+d x)\right ) \log \left (\frac {2}{1-i (c+d x)}\right )}{f}+\frac {\left (a+b \tan ^{-1}(c+d x)\right ) \log \left (\frac {2 d (e+f x)}{(d e+i f-c f) (1-i (c+d x))}\right )}{f}+\frac {b \text {Subst}\left (\int \frac {\log \left (\frac {2}{1-i x}\right )}{1+x^2} \, dx,x,c+d x\right )}{f}-\frac {b \text {Subst}\left (\int \frac {\log \left (\frac {2 \left (\frac {d e-c f}{d}+\frac {f x}{d}\right )}{\left (\frac {i f}{d}+\frac {d e-c f}{d}\right ) (1-i x)}\right )}{1+x^2} \, dx,x,c+d x\right )}{f}\\ &=-\frac {\left (a+b \tan ^{-1}(c+d x)\right ) \log \left (\frac {2}{1-i (c+d x)}\right )}{f}+\frac {\left (a+b \tan ^{-1}(c+d x)\right ) \log \left (\frac {2 d (e+f x)}{(d e+i f-c f) (1-i (c+d x))}\right )}{f}-\frac {i b \text {Li}_2\left (1-\frac {2 d (e+f x)}{(d e+i f-c f) (1-i (c+d x))}\right )}{2 f}+\frac {(i b) \text {Subst}\left (\int \frac {\log (2 x)}{1-2 x} \, dx,x,\frac {1}{1-i (c+d x)}\right )}{f}\\ &=-\frac {\left (a+b \tan ^{-1}(c+d x)\right ) \log \left (\frac {2}{1-i (c+d x)}\right )}{f}+\frac {\left (a+b \tan ^{-1}(c+d x)\right ) \log \left (\frac {2 d (e+f x)}{(d e+i f-c f) (1-i (c+d x))}\right )}{f}+\frac {i b \text {Li}_2\left (1-\frac {2}{1-i (c+d x)}\right )}{2 f}-\frac {i b \text {Li}_2\left (1-\frac {2 d (e+f x)}{(d e+i f-c f) (1-i (c+d x))}\right )}{2 f}\\ \end {align*}
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Mathematica [A]
time = 0.18, size = 315, normalized size = 1.94 \begin {gather*} \frac {a \log (e+f x)+b \text {ArcTan}(c+d x) \left (-\log \left (\frac {1}{\sqrt {1+(c+d x)^2}}\right )+\log \left (\sin \left (\text {ArcTan}\left (\frac {d e-c f}{f}\right )+\text {ArcTan}(c+d x)\right )\right )\right )+\frac {1}{2} b \left (-\frac {1}{4} i (\pi -2 \text {ArcTan}(c+d x))^2-i \left (\text {ArcTan}\left (\frac {d e-c f}{f}\right )+\text {ArcTan}(c+d x)\right )^2+(\pi -2 \text {ArcTan}(c+d x)) \log \left (1+e^{-2 i \text {ArcTan}(c+d x)}\right )+2 \left (\text {ArcTan}\left (\frac {d e-c f}{f}\right )+\text {ArcTan}(c+d x)\right ) \log \left (1-e^{2 i \left (\text {ArcTan}\left (\frac {d e-c f}{f}\right )+\text {ArcTan}(c+d x)\right )}\right )-(\pi -2 \text {ArcTan}(c+d x)) \log \left (\frac {2}{\sqrt {1+(c+d x)^2}}\right )-2 \left (\text {ArcTan}\left (\frac {d e-c f}{f}\right )+\text {ArcTan}(c+d x)\right ) \log \left (2 \sin \left (\text {ArcTan}\left (\frac {d e-c f}{f}\right )+\text {ArcTan}(c+d x)\right )\right )-i \text {PolyLog}\left (2,-e^{-2 i \text {ArcTan}(c+d x)}\right )-i \text {PolyLog}\left (2,e^{2 i \left (\text {ArcTan}\left (\frac {d e-c f}{f}\right )+\text {ArcTan}(c+d x)\right )}\right )\right )}{f} \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.10, size = 238, normalized size = 1.47
method | result | size |
derivativedivides | \(\frac {\frac {a d \ln \left (c f -d e -f \left (d x +c \right )\right )}{f}+\frac {b d \ln \left (c f -d e -f \left (d x +c \right )\right ) \arctan \left (d x +c \right )}{f}-\frac {i b d \ln \left (c f -d e -f \left (d x +c \right )\right ) \ln \left (\frac {i f +f \left (d x +c \right )}{c f -d e +i f}\right )}{2 f}+\frac {i b d \ln \left (c f -d e -f \left (d x +c \right )\right ) \ln \left (\frac {i f -f \left (d x +c \right )}{-c f +d e +i f}\right )}{2 f}-\frac {i b d \dilog \left (\frac {i f +f \left (d x +c \right )}{c f -d e +i f}\right )}{2 f}+\frac {i b d \dilog \left (\frac {i f -f \left (d x +c \right )}{-c f +d e +i f}\right )}{2 f}}{d}\) | \(238\) |
default | \(\frac {\frac {a d \ln \left (c f -d e -f \left (d x +c \right )\right )}{f}+\frac {b d \ln \left (c f -d e -f \left (d x +c \right )\right ) \arctan \left (d x +c \right )}{f}-\frac {i b d \ln \left (c f -d e -f \left (d x +c \right )\right ) \ln \left (\frac {i f +f \left (d x +c \right )}{c f -d e +i f}\right )}{2 f}+\frac {i b d \ln \left (c f -d e -f \left (d x +c \right )\right ) \ln \left (\frac {i f -f \left (d x +c \right )}{-c f +d e +i f}\right )}{2 f}-\frac {i b d \dilog \left (\frac {i f +f \left (d x +c \right )}{c f -d e +i f}\right )}{2 f}+\frac {i b d \dilog \left (\frac {i f -f \left (d x +c \right )}{-c f +d e +i f}\right )}{2 f}}{d}\) | \(238\) |
risch | \(\frac {a \ln \left (i c f -i d e +\left (-i d x -i c +1\right ) f -f \right )}{f}+\frac {i b \dilog \left (\frac {i c f -i d e +\left (-i d x -i c +1\right ) f -f}{i c f -i d e -f}\right )}{2 f}+\frac {i b \ln \left (-i d x -i c +1\right ) \ln \left (\frac {i c f -i d e +\left (-i d x -i c +1\right ) f -f}{i c f -i d e -f}\right )}{2 f}-\frac {i b \dilog \left (\frac {-i c f +i d e +\left (i d x +i c +1\right ) f -f}{-i c f +i d e -f}\right )}{2 f}-\frac {i b \ln \left (i d x +i c +1\right ) \ln \left (\frac {-i c f +i d e +\left (i d x +i c +1\right ) f -f}{-i c f +i d e -f}\right )}{2 f}\) | \(267\) |
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 = -0.01 \begin {gather*} \int \frac {a+b\,\mathrm {atan}\left (c+d\,x\right )}{e+f\,x} \,d x \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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