Integrand size = 7, antiderivative size = 45 \[ \int \log \left (a \csc ^2(x)\right ) \, dx=-i x^2+2 x \log \left (1-e^{2 i x}\right )+x \log \left (a \csc ^2(x)\right )-i \operatorname {PolyLog}\left (2,e^{2 i x}\right ) \]
[Out]
Time = 0.04 (sec) , antiderivative size = 45, normalized size of antiderivative = 1.00, number of steps used = 6, number of rules used = 6, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.857, Rules used = {2628, 12, 3798, 2221, 2317, 2438} \[ \int \log \left (a \csc ^2(x)\right ) \, dx=x \log \left (a \csc ^2(x)\right )-i \operatorname {PolyLog}\left (2,e^{2 i x}\right )-i x^2+2 x \log \left (1-e^{2 i x}\right ) \]
[In]
[Out]
Rule 12
Rule 2221
Rule 2317
Rule 2438
Rule 2628
Rule 3798
Rubi steps \begin{align*} \text {integral}& = x \log \left (a \csc ^2(x)\right )-\int -2 x \cot (x) \, dx \\ & = x \log \left (a \csc ^2(x)\right )+2 \int x \cot (x) \, dx \\ & = -i x^2+x \log \left (a \csc ^2(x)\right )-4 i \int \frac {e^{2 i x} x}{1-e^{2 i x}} \, dx \\ & = -i x^2+2 x \log \left (1-e^{2 i x}\right )+x \log \left (a \csc ^2(x)\right )-2 \int \log \left (1-e^{2 i x}\right ) \, dx \\ & = -i x^2+2 x \log \left (1-e^{2 i x}\right )+x \log \left (a \csc ^2(x)\right )+i \text {Subst}\left (\int \frac {\log (1-x)}{x} \, dx,x,e^{2 i x}\right ) \\ & = -i x^2+2 x \log \left (1-e^{2 i x}\right )+x \log \left (a \csc ^2(x)\right )-i \text {Li}_2\left (e^{2 i x}\right ) \\ \end{align*}
Time = 0.01 (sec) , antiderivative size = 42, normalized size of antiderivative = 0.93 \[ \int \log \left (a \csc ^2(x)\right ) \, dx=2 x \log \left (1-e^{2 i x}\right )+x \log \left (a \csc ^2(x)\right )-i \left (x^2+\operatorname {PolyLog}\left (2,e^{2 i x}\right )\right ) \]
[In]
[Out]
Both result and optimal contain complex but leaf count of result is larger than twice the leaf count of optimal. 87 vs. \(2 (39 ) = 78\).
Time = 1.13 (sec) , antiderivative size = 88, normalized size of antiderivative = 1.96
method | result | size |
default | \(-i \left (\ln \left ({\mathrm e}^{i x}\right ) \ln \left (-\frac {a \,{\mathrm e}^{2 i x}}{\left ({\mathrm e}^{2 i x}-1\right )^{2}}\right )-\ln \left ({\mathrm e}^{i x}\right )^{2}+2 \ln \left ({\mathrm e}^{i x}\right ) \ln \left ({\mathrm e}^{i x}+1\right )+2 \operatorname {dilog}\left ({\mathrm e}^{i x}+1\right )-2 \operatorname {dilog}\left ({\mathrm e}^{i x}\right )+2 \ln \left (2\right ) \ln \left ({\mathrm e}^{i x}\right )\right )\) | \(88\) |
risch | \(2 x \ln \left ({\mathrm e}^{i x}\right )+2 i \ln \left ({\mathrm e}^{i x}\right ) \ln \left ({\mathrm e}^{2 i x}-1\right )-i x^{2}+\frac {i \pi {\operatorname {csgn}\left (i \left ({\mathrm e}^{2 i x}-1\right )^{2}\right )}^{3} x}{2}-\frac {i \pi \operatorname {csgn}\left (i {\mathrm e}^{2 i x}\right )^{3} x}{2}-\frac {i \pi \,\operatorname {csgn}\left (i {\mathrm e}^{2 i x}\right ) \operatorname {csgn}\left (\frac {i}{\left ({\mathrm e}^{2 i x}-1\right )^{2}}\right ) \operatorname {csgn}\left (\frac {i {\mathrm e}^{2 i x}}{\left ({\mathrm e}^{2 i x}-1\right )^{2}}\right ) x}{2}+i \pi x -2 i \ln \left ({\mathrm e}^{i x}\right ) \ln \left ({\mathrm e}^{i x}+1\right )+\frac {i \pi \,\operatorname {csgn}\left (\frac {i}{\left ({\mathrm e}^{2 i x}-1\right )^{2}}\right ) \operatorname {csgn}\left (\frac {i {\mathrm e}^{2 i x}}{\left ({\mathrm e}^{2 i x}-1\right )^{2}}\right )^{2} x}{2}+\frac {i \pi \operatorname {csgn}\left (\frac {i a \,{\mathrm e}^{2 i x}}{\left ({\mathrm e}^{2 i x}-1\right )^{2}}\right )^{3} x}{2}+i \pi \,\operatorname {csgn}\left (i {\mathrm e}^{i x}\right ) \operatorname {csgn}\left (i {\mathrm e}^{2 i x}\right )^{2} x +\frac {i \pi \operatorname {csgn}\left (\frac {i a \,{\mathrm e}^{2 i x}}{\left ({\mathrm e}^{2 i x}-1\right )^{2}}\right )^{2} \operatorname {csgn}\left (i a \right ) x}{2}+2 x \ln \left (2\right )+\ln \left (a \right ) x -2 i \operatorname {dilog}\left ({\mathrm e}^{i x}+1\right )+2 i \operatorname {dilog}\left ({\mathrm e}^{i x}\right )-i \pi \operatorname {csgn}\left (\frac {i a \,{\mathrm e}^{2 i x}}{\left ({\mathrm e}^{2 i x}-1\right )^{2}}\right )^{2} x +\frac {i \pi \,\operatorname {csgn}\left (\frac {i {\mathrm e}^{2 i x}}{\left ({\mathrm e}^{2 i x}-1\right )^{2}}\right ) \operatorname {csgn}\left (\frac {i a \,{\mathrm e}^{2 i x}}{\left ({\mathrm e}^{2 i x}-1\right )^{2}}\right )^{2} x}{2}+\frac {i \pi \,\operatorname {csgn}\left (i {\mathrm e}^{2 i x}\right ) \operatorname {csgn}\left (\frac {i {\mathrm e}^{2 i x}}{\left ({\mathrm e}^{2 i x}-1\right )^{2}}\right )^{2} x}{2}-\frac {i \pi \operatorname {csgn}\left (\frac {i {\mathrm e}^{2 i x}}{\left ({\mathrm e}^{2 i x}-1\right )^{2}}\right )^{3} x}{2}-i \pi \,\operatorname {csgn}\left (i \left ({\mathrm e}^{2 i x}-1\right )\right ) {\operatorname {csgn}\left (i \left ({\mathrm e}^{2 i x}-1\right )^{2}\right )}^{2} x +\frac {i \pi {\operatorname {csgn}\left (i \left ({\mathrm e}^{2 i x}-1\right )\right )}^{2} \operatorname {csgn}\left (i \left ({\mathrm e}^{2 i x}-1\right )^{2}\right ) x}{2}-\frac {i \pi \operatorname {csgn}\left (i {\mathrm e}^{i x}\right )^{2} \operatorname {csgn}\left (i {\mathrm e}^{2 i x}\right ) x}{2}-\frac {i \pi \,\operatorname {csgn}\left (\frac {i {\mathrm e}^{2 i x}}{\left ({\mathrm e}^{2 i x}-1\right )^{2}}\right ) \operatorname {csgn}\left (\frac {i a \,{\mathrm e}^{2 i x}}{\left ({\mathrm e}^{2 i x}-1\right )^{2}}\right ) \operatorname {csgn}\left (i a \right ) x}{2}\) | \(549\) |
[In]
[Out]
Both result and optimal contain complex but leaf count of result is larger than twice the leaf count of optimal. 107 vs. \(2 (34) = 68\).
Time = 0.34 (sec) , antiderivative size = 107, normalized size of antiderivative = 2.38 \[ \int \log \left (a \csc ^2(x)\right ) \, dx=x \log \left (-\frac {a}{\cos \left (x\right )^{2} - 1}\right ) + x \log \left (\cos \left (x\right ) + i \, \sin \left (x\right ) + 1\right ) + x \log \left (\cos \left (x\right ) - i \, \sin \left (x\right ) + 1\right ) + x \log \left (-\cos \left (x\right ) + i \, \sin \left (x\right ) + 1\right ) + x \log \left (-\cos \left (x\right ) - i \, \sin \left (x\right ) + 1\right ) - i \, {\rm Li}_2\left (\cos \left (x\right ) + i \, \sin \left (x\right )\right ) + i \, {\rm Li}_2\left (\cos \left (x\right ) - i \, \sin \left (x\right )\right ) + i \, {\rm Li}_2\left (-\cos \left (x\right ) + i \, \sin \left (x\right )\right ) - i \, {\rm Li}_2\left (-\cos \left (x\right ) - i \, \sin \left (x\right )\right ) \]
[In]
[Out]
\[ \int \log \left (a \csc ^2(x)\right ) \, dx=\int \log {\left (a \csc ^{2}{\left (x \right )} \right )}\, dx \]
[In]
[Out]
Both result and optimal contain complex but leaf count of result is larger than twice the leaf count of optimal. 87 vs. \(2 (34) = 68\).
Time = 0.40 (sec) , antiderivative size = 87, normalized size of antiderivative = 1.93 \[ \int \log \left (a \csc ^2(x)\right ) \, dx=-i \, x^{2} + 2 i \, x \arctan \left (\sin \left (x\right ), \cos \left (x\right ) + 1\right ) - 2 i \, x \arctan \left (\sin \left (x\right ), -\cos \left (x\right ) + 1\right ) + x \log \left (a \csc \left (x\right )^{2}\right ) + x \log \left (\cos \left (x\right )^{2} + \sin \left (x\right )^{2} + 2 \, \cos \left (x\right ) + 1\right ) + x \log \left (\cos \left (x\right )^{2} + \sin \left (x\right )^{2} - 2 \, \cos \left (x\right ) + 1\right ) - 2 i \, {\rm Li}_2\left (-e^{\left (i \, x\right )}\right ) - 2 i \, {\rm Li}_2\left (e^{\left (i \, x\right )}\right ) \]
[In]
[Out]
\[ \int \log \left (a \csc ^2(x)\right ) \, dx=\int { \log \left (a \csc \left (x\right )^{2}\right ) \,d x } \]
[In]
[Out]
Timed out. \[ \int \log \left (a \csc ^2(x)\right ) \, dx=\int \ln \left (\frac {a}{{\sin \left (x\right )}^2}\right ) \,d x \]
[In]
[Out]