Optimal. Leaf size=58 \[ -\frac{\text{PolyLog}\left (2,-e^{2 a+2 b x}\right )}{2 b^2}+\frac{\text{PolyLog}\left (2,e^{2 a+2 b x}\right )}{2 b^2}-\frac{2 x \tanh ^{-1}\left (e^{2 a+2 b x}\right )}{b} \]
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Rubi [A] time = 0.0557309, antiderivative size = 58, normalized size of antiderivative = 1., number of steps used = 6, number of rules used = 4, integrand size = 14, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.286, Rules used = {5461, 4182, 2279, 2391} \[ -\frac{\text{PolyLog}\left (2,-e^{2 a+2 b x}\right )}{2 b^2}+\frac{\text{PolyLog}\left (2,e^{2 a+2 b x}\right )}{2 b^2}-\frac{2 x \tanh ^{-1}\left (e^{2 a+2 b x}\right )}{b} \]
Antiderivative was successfully verified.
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Rule 5461
Rule 4182
Rule 2279
Rule 2391
Rubi steps
\begin{align*} \int x \text{csch}(a+b x) \text{sech}(a+b x) \, dx &=2 \int x \text{csch}(2 a+2 b x) \, dx\\ &=-\frac{2 x \tanh ^{-1}\left (e^{2 a+2 b x}\right )}{b}-\frac{\int \log \left (1-e^{2 a+2 b x}\right ) \, dx}{b}+\frac{\int \log \left (1+e^{2 a+2 b x}\right ) \, dx}{b}\\ &=-\frac{2 x \tanh ^{-1}\left (e^{2 a+2 b x}\right )}{b}-\frac{\operatorname{Subst}\left (\int \frac{\log (1-x)}{x} \, dx,x,e^{2 a+2 b x}\right )}{2 b^2}+\frac{\operatorname{Subst}\left (\int \frac{\log (1+x)}{x} \, dx,x,e^{2 a+2 b x}\right )}{2 b^2}\\ &=-\frac{2 x \tanh ^{-1}\left (e^{2 a+2 b x}\right )}{b}-\frac{\text{Li}_2\left (-e^{2 a+2 b x}\right )}{2 b^2}+\frac{\text{Li}_2\left (e^{2 a+2 b x}\right )}{2 b^2}\\ \end{align*}
Mathematica [A] time = 0.079429, size = 110, normalized size = 1.9 \[ \frac{\text{PolyLog}\left (2,-e^{-2 (a+b x)}\right )-\text{PolyLog}\left (2,e^{-2 (a+b x)}\right )+2 a \log \left (1-e^{-2 (a+b x)}\right )+2 b x \log \left (1-e^{-2 (a+b x)}\right )-2 a \log \left (e^{-2 (a+b x)}+1\right )-2 b x \log \left (e^{-2 (a+b x)}+1\right )-2 a \log (\tanh (a+b x))}{2 b^2} \]
Antiderivative was successfully verified.
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Maple [B] time = 0.039, size = 125, normalized size = 2.2 \begin{align*}{\frac{\ln \left ( 1+{{\rm e}^{bx+a}} \right ) x}{b}}+{\frac{{\it polylog} \left ( 2,-{{\rm e}^{bx+a}} \right ) }{{b}^{2}}}-{\frac{x\ln \left ( 1+{{\rm e}^{2\,bx+2\,a}} \right ) }{b}}-{\frac{{\it polylog} \left ( 2,-{{\rm e}^{2\,bx+2\,a}} \right ) }{2\,{b}^{2}}}+{\frac{\ln \left ( 1-{{\rm e}^{bx+a}} \right ) x}{b}}+{\frac{\ln \left ( 1-{{\rm e}^{bx+a}} \right ) a}{{b}^{2}}}+{\frac{{\it polylog} \left ( 2,{{\rm e}^{bx+a}} \right ) }{{b}^{2}}}-{\frac{a\ln \left ({{\rm e}^{bx+a}}-1 \right ) }{{b}^{2}}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A] time = 1.1433, size = 117, normalized size = 2.02 \begin{align*} -\frac{2 \, b x \log \left (e^{\left (2 \, b x + 2 \, a\right )} + 1\right ) +{\rm Li}_2\left (-e^{\left (2 \, b x + 2 \, a\right )}\right )}{2 \, b^{2}} + \frac{b x \log \left (e^{\left (b x + a\right )} + 1\right ) +{\rm Li}_2\left (-e^{\left (b x + a\right )}\right )}{b^{2}} + \frac{b x \log \left (-e^{\left (b x + a\right )} + 1\right ) +{\rm Li}_2\left (e^{\left (b x + a\right )}\right )}{b^{2}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [C] time = 2.4579, size = 686, normalized size = 11.83 \begin{align*} \frac{b x \log \left (\cosh \left (b x + a\right ) + \sinh \left (b x + a\right ) + 1\right ) + a \log \left (\cosh \left (b x + a\right ) + \sinh \left (b x + a\right ) + i\right ) + a \log \left (\cosh \left (b x + a\right ) + \sinh \left (b x + a\right ) - i\right ) - a \log \left (\cosh \left (b x + a\right ) + \sinh \left (b x + a\right ) - 1\right ) -{\left (b x + a\right )} \log \left (i \, \cosh \left (b x + a\right ) + i \, \sinh \left (b x + a\right ) + 1\right ) -{\left (b x + a\right )} \log \left (-i \, \cosh \left (b x + a\right ) - i \, \sinh \left (b x + a\right ) + 1\right ) +{\left (b x + a\right )} \log \left (-\cosh \left (b x + a\right ) - \sinh \left (b x + a\right ) + 1\right ) +{\rm Li}_2\left (\cosh \left (b x + a\right ) + \sinh \left (b x + a\right )\right ) -{\rm Li}_2\left (i \, \cosh \left (b x + a\right ) + i \, \sinh \left (b x + a\right )\right ) -{\rm Li}_2\left (-i \, \cosh \left (b x + a\right ) - i \, \sinh \left (b x + a\right )\right ) +{\rm Li}_2\left (-\cosh \left (b x + a\right ) - \sinh \left (b x + a\right )\right )}{b^{2}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int x \operatorname{csch}{\left (a + b x \right )} \operatorname{sech}{\left (a + b x \right )}\, dx \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 \operatorname{csch}\left (b x + a\right ) \operatorname{sech}\left (b x + a\right )\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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