Optimal. Leaf size=38 \[ x \log (a \text {csch}(x))+\frac {\text {Li}_2\left (e^{2 x}\right )}{2}-\frac {x^2}{2}+x \log \left (1-e^{2 x}\right ) \]
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Rubi [A] time = 0.05, antiderivative size = 38, normalized size of antiderivative = 1.00, number of steps used = 5, number of rules used = 5, integrand size = 5, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 1.000, Rules used = {2548, 3716, 2190, 2279, 2391} \[ \frac {1}{2} \text {PolyLog}\left (2,e^{2 x}\right )+x \log (a \text {csch}(x))-\frac {x^2}{2}+x \log \left (1-e^{2 x}\right ) \]
Antiderivative was successfully verified.
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Rule 2190
Rule 2279
Rule 2391
Rule 2548
Rule 3716
Rubi steps
\begin {align*} \int \log (a \text {csch}(x)) \, dx &=x \log (a \text {csch}(x))+\int x \coth (x) \, dx\\ &=-\frac {x^2}{2}+x \log (a \text {csch}(x))-2 \int \frac {e^{2 x} x}{1-e^{2 x}} \, dx\\ &=-\frac {x^2}{2}+x \log \left (1-e^{2 x}\right )+x \log (a \text {csch}(x))-\int \log \left (1-e^{2 x}\right ) \, dx\\ &=-\frac {x^2}{2}+x \log \left (1-e^{2 x}\right )+x \log (a \text {csch}(x))-\frac {1}{2} \operatorname {Subst}\left (\int \frac {\log (1-x)}{x} \, dx,x,e^{2 x}\right )\\ &=-\frac {x^2}{2}+x \log \left (1-e^{2 x}\right )+x \log (a \text {csch}(x))+\frac {\text {Li}_2\left (e^{2 x}\right )}{2}\\ \end {align*}
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Mathematica [A] time = 0.02, size = 37, normalized size = 0.97 \[ \frac {1}{2} \left (x \left (2 \log (a \text {csch}(x))+x+2 \log \left (1-e^{-2 x}\right )\right )-\text {Li}_2\left (e^{-2 x}\right )\right ) \]
Antiderivative was successfully verified.
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fricas [B] time = 0.47, size = 76, normalized size = 2.00 \[ -\frac {1}{2} \, x^{2} + x \log \left (\frac {2 \, {\left (a \cosh \relax (x) + a \sinh \relax (x)\right )}}{\cosh \relax (x)^{2} + 2 \, \cosh \relax (x) \sinh \relax (x) + \sinh \relax (x)^{2} - 1}\right ) + x \log \left (\cosh \relax (x) + \sinh \relax (x) + 1\right ) + x \log \left (-\cosh \relax (x) - \sinh \relax (x) + 1\right ) + {\rm Li}_2\left (\cosh \relax (x) + \sinh \relax (x)\right ) + {\rm Li}_2\left (-\cosh \relax (x) - \sinh \relax (x)\right ) \]
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 \[ \int \log \left (a \operatorname {csch}\relax (x)\right )\,{d x} \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [C] time = 0.95, size = 293, normalized size = 7.71 \[ -\frac {i \pi x \,\mathrm {csgn}\left (i a \right ) \mathrm {csgn}\left (\frac {i {\mathrm e}^{x}}{{\mathrm e}^{2 x}-1}\right ) \mathrm {csgn}\left (\frac {i a \,{\mathrm e}^{x}}{{\mathrm e}^{2 x}-1}\right )}{2}+\frac {i \pi x \,\mathrm {csgn}\left (i a \right ) \mathrm {csgn}\left (\frac {i a \,{\mathrm e}^{x}}{{\mathrm e}^{2 x}-1}\right )^{2}}{2}-\frac {i \pi x \,\mathrm {csgn}\left (\frac {i}{{\mathrm e}^{2 x}-1}\right ) \mathrm {csgn}\left (i {\mathrm e}^{x}\right ) \mathrm {csgn}\left (\frac {i {\mathrm e}^{x}}{{\mathrm e}^{2 x}-1}\right )}{2}+\frac {i \pi x \,\mathrm {csgn}\left (\frac {i}{{\mathrm e}^{2 x}-1}\right ) \mathrm {csgn}\left (\frac {i {\mathrm e}^{x}}{{\mathrm e}^{2 x}-1}\right )^{2}}{2}+\frac {i \pi x \,\mathrm {csgn}\left (i {\mathrm e}^{x}\right ) \mathrm {csgn}\left (\frac {i {\mathrm e}^{x}}{{\mathrm e}^{2 x}-1}\right )^{2}}{2}-\frac {i \pi x \mathrm {csgn}\left (\frac {i {\mathrm e}^{x}}{{\mathrm e}^{2 x}-1}\right )^{3}}{2}+\frac {i \pi x \,\mathrm {csgn}\left (\frac {i {\mathrm e}^{x}}{{\mathrm e}^{2 x}-1}\right ) \mathrm {csgn}\left (\frac {i a \,{\mathrm e}^{x}}{{\mathrm e}^{2 x}-1}\right )^{2}}{2}-\frac {i \pi x \mathrm {csgn}\left (\frac {i a \,{\mathrm e}^{x}}{{\mathrm e}^{2 x}-1}\right )^{3}}{2}-\frac {x^{2}}{2}+x \ln \relax (a )+x \ln \left ({\mathrm e}^{x}\right )-\ln \left ({\mathrm e}^{2 x}-1\right ) \ln \left ({\mathrm e}^{x}\right )+\ln \left ({\mathrm e}^{x}+1\right ) \ln \left ({\mathrm e}^{x}\right )+\ln \relax (2) x +\dilog \left ({\mathrm e}^{x}+1\right )-\dilog \left ({\mathrm e}^{x}\right ) \]
Verification of antiderivative is not currently implemented for this CAS.
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maxima [A] time = 0.65, size = 37, normalized size = 0.97 \[ -\frac {1}{2} \, x^{2} + x \log \left (a \operatorname {csch}\relax (x)\right ) + x \log \left (e^{x} + 1\right ) + x \log \left (-e^{x} + 1\right ) + {\rm Li}_2\left (-e^{x}\right ) + {\rm Li}_2\left (e^{x}\right ) \]
Verification of antiderivative is not currently implemented for this CAS.
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mupad [F] time = 0.00, size = -1, normalized size = -0.03 \[ \int \ln \left (\frac {a}{\mathrm {sinh}\relax (x)}\right ) \,d x \]
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 \[ \int \log {\left (a \operatorname {csch}{\relax (x )} \right )}\, dx \]
Verification of antiderivative is not currently implemented for this CAS.
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