Integrand size = 13, antiderivative size = 21 \[ \int \sqrt {1+\coth (x)} \text {sech}^2(x) \, dx=\text {arctanh}\left (\sqrt {1+\coth (x)}\right )+\sqrt {1+\coth (x)} \tanh (x) \]
[Out]
Time = 0.04 (sec) , antiderivative size = 21, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 4, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.308, Rules used = {3597, 43, 65, 213} \[ \int \sqrt {1+\coth (x)} \text {sech}^2(x) \, dx=\text {arctanh}\left (\sqrt {\coth (x)+1}\right )+\tanh (x) \sqrt {\coth (x)+1} \]
[In]
[Out]
Rule 43
Rule 65
Rule 213
Rule 3597
Rubi steps \begin{align*} \text {integral}& = -\text {Subst}\left (\int \frac {\sqrt {1+x}}{x^2} \, dx,x,\coth (x)\right ) \\ & = \sqrt {1+\coth (x)} \tanh (x)-\frac {1}{2} \text {Subst}\left (\int \frac {1}{x \sqrt {1+x}} \, dx,x,\coth (x)\right ) \\ & = \sqrt {1+\coth (x)} \tanh (x)-\text {Subst}\left (\int \frac {1}{-1+x^2} \, dx,x,\sqrt {1+\coth (x)}\right ) \\ & = \text {arctanh}\left (\sqrt {1+\coth (x)}\right )+\sqrt {1+\coth (x)} \tanh (x) \\ \end{align*}
Result contains complex when optimal does not.
Time = 21.23 (sec) , antiderivative size = 135, normalized size of antiderivative = 6.43 \[ \int \sqrt {1+\coth (x)} \text {sech}^2(x) \, dx=\frac {1}{2} \sqrt {1+\coth (x)} \left (\frac {(1-i) \arctan \left (\left (\frac {1}{2}+\frac {i}{2}\right ) \sqrt {i (1+\coth (x))}\right )}{\sqrt {i (1+\coth (x))}}+\frac {2 \left (-2 \text {arctanh}\left (\sqrt {\tanh \left (\frac {x}{2}\right )}\right )+\sqrt {2} \text {arctanh}\left (\frac {1+\tanh \left (\frac {x}{2}\right )}{\sqrt {2} \sqrt {\tanh \left (\frac {x}{2}\right )}}\right )\right ) \cosh ^2\left (\frac {x}{2}\right ) \text {csch}(x) \sqrt {\tanh \left (\frac {x}{2}\right )} \left (1+\tanh \left (\frac {x}{2}\right )\right )}{1+\coth (x)}+2 \tanh (x)\right ) \]
[In]
[Out]
Leaf count of result is larger than twice the leaf count of optimal. \(47\) vs. \(2(17)=34\).
Time = 0.18 (sec) , antiderivative size = 48, normalized size of antiderivative = 2.29
method | result | size |
derivativedivides | \(\frac {1}{2 \sqrt {1+\coth \left (x \right )}-2}-\frac {\ln \left (\sqrt {1+\coth \left (x \right )}-1\right )}{2}+\frac {1}{2 \sqrt {1+\coth \left (x \right )}+2}+\frac {\ln \left (\sqrt {1+\coth \left (x \right )}+1\right )}{2}\) | \(48\) |
default | \(\frac {1}{2 \sqrt {1+\coth \left (x \right )}-2}-\frac {\ln \left (\sqrt {1+\coth \left (x \right )}-1\right )}{2}+\frac {1}{2 \sqrt {1+\coth \left (x \right )}+2}+\frac {\ln \left (\sqrt {1+\coth \left (x \right )}+1\right )}{2}\) | \(48\) |
[In]
[Out]
Leaf count of result is larger than twice the leaf count of optimal. 231 vs. \(2 (17) = 34\).
Time = 0.27 (sec) , antiderivative size = 231, normalized size of antiderivative = 11.00 \[ \int \sqrt {1+\coth (x)} \text {sech}^2(x) \, dx=\frac {4 \, \sqrt {2} {\left (\sqrt {2} \cosh \left (x\right ) + \sqrt {2} \sinh \left (x\right )\right )} \sqrt {\frac {\sinh \left (x\right )}{\cosh \left (x\right ) - \sinh \left (x\right )}} + {\left (\cosh \left (x\right )^{2} + 2 \, \cosh \left (x\right ) \sinh \left (x\right ) + \sinh \left (x\right )^{2} + 1\right )} \log \left (\frac {2 \, \sqrt {2} {\left (\sqrt {2} \cosh \left (x\right ) + \sqrt {2} \sinh \left (x\right )\right )} \sqrt {\frac {\sinh \left (x\right )}{\cosh \left (x\right ) - \sinh \left (x\right )}} + 3 \, \cosh \left (x\right )^{2} + 6 \, \cosh \left (x\right ) \sinh \left (x\right ) + 3 \, \sinh \left (x\right )^{2} - 1}{\cosh \left (x\right )^{2} + 2 \, \cosh \left (x\right ) \sinh \left (x\right ) + \sinh \left (x\right )^{2}}\right ) - {\left (\cosh \left (x\right )^{2} + 2 \, \cosh \left (x\right ) \sinh \left (x\right ) + \sinh \left (x\right )^{2} + 1\right )} \log \left (-\frac {2 \, \sqrt {2} {\left (\sqrt {2} \cosh \left (x\right ) + \sqrt {2} \sinh \left (x\right )\right )} \sqrt {\frac {\sinh \left (x\right )}{\cosh \left (x\right ) - \sinh \left (x\right )}} - 3 \, \cosh \left (x\right )^{2} - 6 \, \cosh \left (x\right ) \sinh \left (x\right ) - 3 \, \sinh \left (x\right )^{2} + 1}{\cosh \left (x\right )^{2} + 2 \, \cosh \left (x\right ) \sinh \left (x\right ) + \sinh \left (x\right )^{2}}\right )}{4 \, {\left (\cosh \left (x\right )^{2} + 2 \, \cosh \left (x\right ) \sinh \left (x\right ) + \sinh \left (x\right )^{2} + 1\right )}} \]
[In]
[Out]
\[ \int \sqrt {1+\coth (x)} \text {sech}^2(x) \, dx=\int \sqrt {\coth {\left (x \right )} + 1} \operatorname {sech}^{2}{\left (x \right )}\, dx \]
[In]
[Out]
\[ \int \sqrt {1+\coth (x)} \text {sech}^2(x) \, dx=\int { \sqrt {\coth \left (x\right ) + 1} \operatorname {sech}\left (x\right )^{2} \,d x } \]
[In]
[Out]
Leaf count of result is larger than twice the leaf count of optimal. 122 vs. \(2 (17) = 34\).
Time = 0.27 (sec) , antiderivative size = 122, normalized size of antiderivative = 5.81 \[ \int \sqrt {1+\coth (x)} \text {sech}^2(x) \, dx=-\frac {1}{4} \, \sqrt {2} {\left (\sqrt {2} \log \left (\frac {{\left (\sqrt {e^{\left (2 \, x\right )} - 1} - e^{x}\right )}^{2} - 2 \, \sqrt {2} + 3}{{\left (\sqrt {e^{\left (2 \, x\right )} - 1} - e^{x}\right )}^{2} + 2 \, \sqrt {2} + 3}\right ) - \frac {8 \, {\left (3 \, {\left (\sqrt {e^{\left (2 \, x\right )} - 1} - e^{x}\right )}^{2} + 1\right )}}{{\left (\sqrt {e^{\left (2 \, x\right )} - 1} - e^{x}\right )}^{4} + 6 \, {\left (\sqrt {e^{\left (2 \, x\right )} - 1} - e^{x}\right )}^{2} + 1}\right )} \mathrm {sgn}\left (e^{\left (2 \, x\right )} - 1\right ) \]
[In]
[Out]
Timed out. \[ \int \sqrt {1+\coth (x)} \text {sech}^2(x) \, dx=\int \frac {\sqrt {\mathrm {coth}\left (x\right )+1}}{{\mathrm {cosh}\left (x\right )}^2} \,d x \]
[In]
[Out]