Optimal. Leaf size=232 \[ \frac{i \text{PolyLog}\left (3,\frac{i b f^{c+d x}}{1-i a}\right )}{2 d^2 \log ^2(f)}-\frac{i \text{PolyLog}\left (3,-\frac{i b f^{c+d x}}{1+i a}\right )}{2 d^2 \log ^2(f)}-\frac{i x \text{PolyLog}\left (2,\frac{i b f^{c+d x}}{1-i a}\right )}{2 d \log (f)}+\frac{i x \text{PolyLog}\left (2,-\frac{i b f^{c+d x}}{1+i a}\right )}{2 d \log (f)}-\frac{1}{4} i x^2 \log \left (1-\frac{i b f^{c+d x}}{1-i a}\right )+\frac{1}{4} i x^2 \log \left (1+\frac{i b f^{c+d x}}{1+i a}\right )+\frac{1}{2} x^2 \tan ^{-1}\left (a+b f^{c+d x}\right ) \]
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Rubi [A] time = 0.150929, antiderivative size = 250, normalized size of antiderivative = 1.08, number of steps used = 9, number of rules used = 5, integrand size = 14, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.357, Rules used = {5143, 2532, 2531, 2282, 6589} \[ -\frac{i \text{PolyLog}\left (3,\frac{b f^{c+d x}}{-a+i}\right )}{2 d^2 \log ^2(f)}+\frac{i \text{PolyLog}\left (3,-\frac{b f^{c+d x}}{a+i}\right )}{2 d^2 \log ^2(f)}+\frac{i x \text{PolyLog}\left (2,\frac{b f^{c+d x}}{-a+i}\right )}{2 d \log (f)}-\frac{i x \text{PolyLog}\left (2,-\frac{b f^{c+d x}}{a+i}\right )}{2 d \log (f)}+\frac{1}{4} i x^2 \log \left (-i a-i b f^{c+d x}+1\right )-\frac{1}{4} i x^2 \log \left (i a+i b f^{c+d x}+1\right )+\frac{1}{4} i x^2 \log \left (1-\frac{b f^{c+d x}}{-a+i}\right )-\frac{1}{4} i x^2 \log \left (1+\frac{b f^{c+d x}}{a+i}\right ) \]
Warning: Unable to verify antiderivative.
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Rule 5143
Rule 2532
Rule 2531
Rule 2282
Rule 6589
Rubi steps
\begin{align*} \int x \tan ^{-1}\left (a+b f^{c+d x}\right ) \, dx &=\frac{1}{2} i \int x \log \left (1-i a-i b f^{c+d x}\right ) \, dx-\frac{1}{2} i \int x \log \left (1+i a+i b f^{c+d x}\right ) \, dx\\ &=\frac{1}{4} i x^2 \log \left (1-i a-i b f^{c+d x}\right )-\frac{1}{4} i x^2 \log \left (1+i a+i b f^{c+d x}\right )+\frac{1}{4} i x^2 \log \left (1-\frac{b f^{c+d x}}{i-a}\right )-\frac{1}{4} i x^2 \log \left (1+\frac{b f^{c+d x}}{i+a}\right )+\frac{1}{2} i \int x \log \left (1-\frac{i b f^{c+d x}}{1-i a}\right ) \, dx-\frac{1}{2} i \int x \log \left (1+\frac{i b f^{c+d x}}{1+i a}\right ) \, dx\\ &=\frac{1}{4} i x^2 \log \left (1-i a-i b f^{c+d x}\right )-\frac{1}{4} i x^2 \log \left (1+i a+i b f^{c+d x}\right )+\frac{1}{4} i x^2 \log \left (1-\frac{b f^{c+d x}}{i-a}\right )-\frac{1}{4} i x^2 \log \left (1+\frac{b f^{c+d x}}{i+a}\right )+\frac{i x \text{Li}_2\left (\frac{b f^{c+d x}}{i-a}\right )}{2 d \log (f)}-\frac{i x \text{Li}_2\left (-\frac{b f^{c+d x}}{i+a}\right )}{2 d \log (f)}+\frac{i \int \text{Li}_2\left (\frac{i b f^{c+d x}}{1-i a}\right ) \, dx}{2 d \log (f)}-\frac{i \int \text{Li}_2\left (-\frac{i b f^{c+d x}}{1+i a}\right ) \, dx}{2 d \log (f)}\\ &=\frac{1}{4} i x^2 \log \left (1-i a-i b f^{c+d x}\right )-\frac{1}{4} i x^2 \log \left (1+i a+i b f^{c+d x}\right )+\frac{1}{4} i x^2 \log \left (1-\frac{b f^{c+d x}}{i-a}\right )-\frac{1}{4} i x^2 \log \left (1+\frac{b f^{c+d x}}{i+a}\right )+\frac{i x \text{Li}_2\left (\frac{b f^{c+d x}}{i-a}\right )}{2 d \log (f)}-\frac{i x \text{Li}_2\left (-\frac{b f^{c+d x}}{i+a}\right )}{2 d \log (f)}-\frac{i \operatorname{Subst}\left (\int \frac{\text{Li}_2\left (\frac{b x}{i-a}\right )}{x} \, dx,x,f^{c+d x}\right )}{2 d^2 \log ^2(f)}+\frac{i \operatorname{Subst}\left (\int \frac{\text{Li}_2\left (-\frac{b x}{i+a}\right )}{x} \, dx,x,f^{c+d x}\right )}{2 d^2 \log ^2(f)}\\ &=\frac{1}{4} i x^2 \log \left (1-i a-i b f^{c+d x}\right )-\frac{1}{4} i x^2 \log \left (1+i a+i b f^{c+d x}\right )+\frac{1}{4} i x^2 \log \left (1-\frac{b f^{c+d x}}{i-a}\right )-\frac{1}{4} i x^2 \log \left (1+\frac{b f^{c+d x}}{i+a}\right )+\frac{i x \text{Li}_2\left (\frac{b f^{c+d x}}{i-a}\right )}{2 d \log (f)}-\frac{i x \text{Li}_2\left (-\frac{b f^{c+d x}}{i+a}\right )}{2 d \log (f)}-\frac{i \text{Li}_3\left (\frac{b f^{c+d x}}{i-a}\right )}{2 d^2 \log ^2(f)}+\frac{i \text{Li}_3\left (-\frac{b f^{c+d x}}{i+a}\right )}{2 d^2 \log ^2(f)}\\ \end{align*}
Mathematica [A] time = 0.0872073, size = 236, normalized size = 1.02 \[ \frac{i \left (-2 \text{PolyLog}\left (3,\frac{b f^{c+d x}}{-a+i}\right )+2 \text{PolyLog}\left (3,-\frac{b f^{c+d x}}{a+i}\right )+2 d x \log (f) \text{PolyLog}\left (2,\frac{b f^{c+d x}}{-a+i}\right )-2 d x \log (f) \text{PolyLog}\left (2,-\frac{b f^{c+d x}}{a+i}\right )+d^2 x^2 \log ^2(f) \log \left (-i a-i b f^{c+d x}+1\right )-d^2 x^2 \log ^2(f) \log \left (i a+i b f^{c+d x}+1\right )-d^2 x^2 \log ^2(f) \log \left (\frac{a+b f^{c+d x}+i}{a+i}\right )+d^2 x^2 \log ^2(f) \log \left (1+\frac{b f^{c+d x}}{a-i}\right )\right )}{4 d^2 \log ^2(f)} \]
Warning: Unable to verify antiderivative.
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Maple [B] time = 0.242, size = 672, normalized size = 2.9 \begin{align*} \text{result too large to display} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F(-2)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Exception raised: ValueError} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [C] time = 2.47553, size = 778, normalized size = 3.35 \begin{align*} \frac{2 \, d^{2} x^{2} \arctan \left (b f^{d x + c} + a\right ) \log \left (f\right )^{2} - i \, c^{2} \log \left (b f^{d x + c} + a + i\right ) \log \left (f\right )^{2} + i \, c^{2} \log \left (b f^{d x + c} + a - i\right ) \log \left (f\right )^{2} + 2 i \, d x{\rm Li}_2\left (-\frac{a^{2} +{\left (a b + i \, b\right )} f^{d x + c} + 1}{a^{2} + 1} + 1\right ) \log \left (f\right ) - 2 i \, d x{\rm Li}_2\left (-\frac{a^{2} +{\left (a b - i \, b\right )} f^{d x + c} + 1}{a^{2} + 1} + 1\right ) \log \left (f\right ) +{\left (i \, d^{2} x^{2} - i \, c^{2}\right )} \log \left (f\right )^{2} \log \left (\frac{a^{2} +{\left (a b + i \, b\right )} f^{d x + c} + 1}{a^{2} + 1}\right ) +{\left (-i \, d^{2} x^{2} + i \, c^{2}\right )} \log \left (f\right )^{2} \log \left (\frac{a^{2} +{\left (a b - i \, b\right )} f^{d x + c} + 1}{a^{2} + 1}\right ) - 2 i \,{\rm polylog}\left (3, -\frac{{\left (a b + i \, b\right )} f^{d x + c}}{a^{2} + 1}\right ) + 2 i \,{\rm polylog}\left (3, -\frac{{\left (a b - i \, b\right )} f^{d x + c}}{a^{2} + 1}\right )}{4 \, d^{2} \log \left (f\right )^{2}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F(-1)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Timed out} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int x \arctan \left (b f^{d x + c} + a\right )\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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