Integrand size = 8, antiderivative size = 34 \[ \int \text {csch}^3(a+b x) \, dx=\frac {\text {arctanh}(\cosh (a+b x))}{2 b}-\frac {\coth (a+b x) \text {csch}(a+b x)}{2 b} \]
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Time = 0.02 (sec) , antiderivative size = 34, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.250, Rules used = {3853, 3855} \[ \int \text {csch}^3(a+b x) \, dx=\frac {\text {arctanh}(\cosh (a+b x))}{2 b}-\frac {\coth (a+b x) \text {csch}(a+b x)}{2 b} \]
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Rule 3853
Rule 3855
Rubi steps \begin{align*} \text {integral}& = -\frac {\coth (a+b x) \text {csch}(a+b x)}{2 b}-\frac {1}{2} \int \text {csch}(a+b x) \, dx \\ & = \frac {\text {arctanh}(\cosh (a+b x))}{2 b}-\frac {\coth (a+b x) \text {csch}(a+b x)}{2 b} \\ \end{align*}
Leaf count is larger than twice the leaf count of optimal. \(75\) vs. \(2(34)=68\).
Time = 0.02 (sec) , antiderivative size = 75, normalized size of antiderivative = 2.21 \[ \int \text {csch}^3(a+b x) \, dx=-\frac {\text {csch}^2\left (\frac {1}{2} (a+b x)\right )}{8 b}+\frac {\log \left (\cosh \left (\frac {1}{2} (a+b x)\right )\right )}{2 b}-\frac {\log \left (\sinh \left (\frac {1}{2} (a+b x)\right )\right )}{2 b}-\frac {\text {sech}^2\left (\frac {1}{2} (a+b x)\right )}{8 b} \]
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Time = 0.76 (sec) , antiderivative size = 27, normalized size of antiderivative = 0.79
method | result | size |
derivativedivides | \(\frac {-\frac {\operatorname {csch}\left (b x +a \right ) \coth \left (b x +a \right )}{2}+\operatorname {arctanh}\left ({\mathrm e}^{b x +a}\right )}{b}\) | \(27\) |
default | \(\frac {-\frac {\operatorname {csch}\left (b x +a \right ) \coth \left (b x +a \right )}{2}+\operatorname {arctanh}\left ({\mathrm e}^{b x +a}\right )}{b}\) | \(27\) |
parallelrisch | \(\frac {\tanh \left (\frac {b x}{2}+\frac {a}{2}\right )^{2}-\coth \left (\frac {b x}{2}+\frac {a}{2}\right )^{2}-4 \ln \left (\tanh \left (\frac {b x}{2}+\frac {a}{2}\right )\right )}{8 b}\) | \(43\) |
risch | \(-\frac {{\mathrm e}^{b x +a} \left (1+{\mathrm e}^{2 b x +2 a}\right )}{b \left ({\mathrm e}^{2 b x +2 a}-1\right )^{2}}-\frac {\ln \left ({\mathrm e}^{b x +a}-1\right )}{2 b}+\frac {\ln \left ({\mathrm e}^{b x +a}+1\right )}{2 b}\) | \(65\) |
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Leaf count of result is larger than twice the leaf count of optimal. 387 vs. \(2 (30) = 60\).
Time = 0.26 (sec) , antiderivative size = 387, normalized size of antiderivative = 11.38 \[ \int \text {csch}^3(a+b x) \, dx=-\frac {2 \, \cosh \left (b x + a\right )^{3} + 6 \, \cosh \left (b x + a\right ) \sinh \left (b x + a\right )^{2} + 2 \, \sinh \left (b x + a\right )^{3} - {\left (\cosh \left (b x + a\right )^{4} + 4 \, \cosh \left (b x + a\right ) \sinh \left (b x + a\right )^{3} + \sinh \left (b x + a\right )^{4} + 2 \, {\left (3 \, \cosh \left (b x + a\right )^{2} - 1\right )} \sinh \left (b x + a\right )^{2} - 2 \, \cosh \left (b x + a\right )^{2} + 4 \, {\left (\cosh \left (b x + a\right )^{3} - \cosh \left (b x + a\right )\right )} \sinh \left (b x + a\right ) + 1\right )} \log \left (\cosh \left (b x + a\right ) + \sinh \left (b x + a\right ) + 1\right ) + {\left (\cosh \left (b x + a\right )^{4} + 4 \, \cosh \left (b x + a\right ) \sinh \left (b x + a\right )^{3} + \sinh \left (b x + a\right )^{4} + 2 \, {\left (3 \, \cosh \left (b x + a\right )^{2} - 1\right )} \sinh \left (b x + a\right )^{2} - 2 \, \cosh \left (b x + a\right )^{2} + 4 \, {\left (\cosh \left (b x + a\right )^{3} - \cosh \left (b x + a\right )\right )} \sinh \left (b x + a\right ) + 1\right )} \log \left (\cosh \left (b x + a\right ) + \sinh \left (b x + a\right ) - 1\right ) + 2 \, {\left (3 \, \cosh \left (b x + a\right )^{2} + 1\right )} \sinh \left (b x + a\right ) + 2 \, \cosh \left (b x + a\right )}{2 \, {\left (b \cosh \left (b x + a\right )^{4} + 4 \, b \cosh \left (b x + a\right ) \sinh \left (b x + a\right )^{3} + b \sinh \left (b x + a\right )^{4} - 2 \, b \cosh \left (b x + a\right )^{2} + 2 \, {\left (3 \, b \cosh \left (b x + a\right )^{2} - b\right )} \sinh \left (b x + a\right )^{2} + 4 \, {\left (b \cosh \left (b x + a\right )^{3} - b \cosh \left (b x + a\right )\right )} \sinh \left (b x + a\right ) + b\right )}} \]
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\[ \int \text {csch}^3(a+b x) \, dx=\int \operatorname {csch}^{3}{\left (a + b x \right )}\, dx \]
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Leaf count of result is larger than twice the leaf count of optimal. 84 vs. \(2 (30) = 60\).
Time = 0.19 (sec) , antiderivative size = 84, normalized size of antiderivative = 2.47 \[ \int \text {csch}^3(a+b x) \, dx=\frac {\log \left (e^{\left (-b x - a\right )} + 1\right )}{2 \, b} - \frac {\log \left (e^{\left (-b x - a\right )} - 1\right )}{2 \, b} + \frac {e^{\left (-b x - a\right )} + e^{\left (-3 \, b x - 3 \, a\right )}}{b {\left (2 \, e^{\left (-2 \, b x - 2 \, a\right )} - e^{\left (-4 \, b x - 4 \, a\right )} - 1\right )}} \]
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Leaf count of result is larger than twice the leaf count of optimal. 84 vs. \(2 (30) = 60\).
Time = 0.28 (sec) , antiderivative size = 84, normalized size of antiderivative = 2.47 \[ \int \text {csch}^3(a+b x) \, dx=-\frac {\frac {4 \, {\left (e^{\left (b x + a\right )} + e^{\left (-b x - a\right )}\right )}}{{\left (e^{\left (b x + a\right )} + e^{\left (-b x - a\right )}\right )}^{2} - 4} - \log \left (e^{\left (b x + a\right )} + e^{\left (-b x - a\right )} + 2\right ) + \log \left (e^{\left (b x + a\right )} + e^{\left (-b x - a\right )} - 2\right )}{4 \, b} \]
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Time = 2.09 (sec) , antiderivative size = 86, normalized size of antiderivative = 2.53 \[ \int \text {csch}^3(a+b x) \, dx=\frac {\mathrm {atan}\left (\frac {{\mathrm {e}}^{b\,x}\,{\mathrm {e}}^a\,\sqrt {-b^2}}{b}\right )}{\sqrt {-b^2}}-\frac {2\,{\mathrm {e}}^{a+b\,x}}{b\,\left ({\mathrm {e}}^{4\,a+4\,b\,x}-2\,{\mathrm {e}}^{2\,a+2\,b\,x}+1\right )}-\frac {{\mathrm {e}}^{a+b\,x}}{b\,\left ({\mathrm {e}}^{2\,a+2\,b\,x}-1\right )} \]
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