Integrand size = 11, antiderivative size = 194 \[ \int \coth ^{-1}(c+d \tan (a+b x)) \, dx=x \coth ^{-1}(c+d \tan (a+b x))+\frac {1}{2} x \log \left (1+\frac {(1-c+i d) e^{2 i a+2 i b x}}{1-c-i d}\right )-\frac {1}{2} x \log \left (1+\frac {(1+c-i d) e^{2 i a+2 i b x}}{1+c+i d}\right )-\frac {i \operatorname {PolyLog}\left (2,-\frac {(1-c+i d) e^{2 i a+2 i b x}}{1-c-i d}\right )}{4 b}+\frac {i \operatorname {PolyLog}\left (2,-\frac {(1+c-i d) e^{2 i a+2 i b x}}{1+c+i d}\right )}{4 b} \]
[Out]
Time = 0.19 (sec) , antiderivative size = 194, normalized size of antiderivative = 1.00, number of steps used = 7, number of rules used = 4, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.364, Rules used = {6395, 2221, 2317, 2438} \[ \int \coth ^{-1}(c+d \tan (a+b x)) \, dx=-\frac {i \operatorname {PolyLog}\left (2,-\frac {(-c+i d+1) e^{2 i a+2 i b x}}{-c-i d+1}\right )}{4 b}+\frac {i \operatorname {PolyLog}\left (2,-\frac {(c-i d+1) e^{2 i a+2 i b x}}{c+i d+1}\right )}{4 b}+\frac {1}{2} x \log \left (1+\frac {(-c+i d+1) e^{2 i a+2 i b x}}{-c-i d+1}\right )-\frac {1}{2} x \log \left (1+\frac {(c-i d+1) e^{2 i a+2 i b x}}{c+i d+1}\right )+x \coth ^{-1}(d \tan (a+b x)+c) \]
[In]
[Out]
Rule 2221
Rule 2317
Rule 2438
Rule 6395
Rubi steps \begin{align*} \text {integral}& = x \coth ^{-1}(c+d \tan (a+b x))+(b (i (1-c)-d)) \int \frac {e^{2 i a+2 i b x} x}{1-c-i d+(1-c+i d) e^{2 i a+2 i b x}} \, dx-(b (i+i c+d)) \int \frac {e^{2 i a+2 i b x} x}{1+c+i d+(1+c-i d) e^{2 i a+2 i b x}} \, dx \\ & = x \coth ^{-1}(c+d \tan (a+b x))+\frac {1}{2} x \log \left (1+\frac {(1-c+i d) e^{2 i a+2 i b x}}{1-c-i d}\right )-\frac {1}{2} x \log \left (1+\frac {(1+c-i d) e^{2 i a+2 i b x}}{1+c+i d}\right )-\frac {1}{2} \int \log \left (1+\frac {(1-c+i d) e^{2 i a+2 i b x}}{1-c-i d}\right ) \, dx+\frac {1}{2} \int \log \left (1+\frac {(1+c-i d) e^{2 i a+2 i b x}}{1+c+i d}\right ) \, dx \\ & = x \coth ^{-1}(c+d \tan (a+b x))+\frac {1}{2} x \log \left (1+\frac {(1-c+i d) e^{2 i a+2 i b x}}{1-c-i d}\right )-\frac {1}{2} x \log \left (1+\frac {(1+c-i d) e^{2 i a+2 i b x}}{1+c+i d}\right )+\frac {i \text {Subst}\left (\int \frac {\log \left (1+\frac {(1-c+i d) x}{1-c-i d}\right )}{x} \, dx,x,e^{2 i a+2 i b x}\right )}{4 b}-\frac {i \text {Subst}\left (\int \frac {\log \left (1+\frac {(1+c-i d) x}{1+c+i d}\right )}{x} \, dx,x,e^{2 i a+2 i b x}\right )}{4 b} \\ & = x \coth ^{-1}(c+d \tan (a+b x))+\frac {1}{2} x \log \left (1+\frac {(1-c+i d) e^{2 i a+2 i b x}}{1-c-i d}\right )-\frac {1}{2} x \log \left (1+\frac {(1+c-i d) e^{2 i a+2 i b x}}{1+c+i d}\right )-\frac {i \operatorname {PolyLog}\left (2,-\frac {(1-c+i d) e^{2 i a+2 i b x}}{1-c-i d}\right )}{4 b}+\frac {i \operatorname {PolyLog}\left (2,-\frac {(1+c-i d) e^{2 i a+2 i b x}}{1+c+i d}\right )}{4 b} \\ \end{align*}
Time = 0.35 (sec) , antiderivative size = 365, normalized size of antiderivative = 1.88 \[ \int \coth ^{-1}(c+d \tan (a+b x)) \, dx=x \left (\coth ^{-1}(c+d \tan (a+b x))+\frac {2 a \log (1-c-d \tan (a+b x))-i \log (1-i \tan (a+b x)) \log \left (\frac {-1+c+d \tan (a+b x)}{-1+c-i d}\right )+i \log (1+i \tan (a+b x)) \log \left (\frac {-1+c+d \tan (a+b x)}{-1+c+i d}\right )-2 a \log (1+c+d \tan (a+b x))+i \log (1-i \tan (a+b x)) \log \left (\frac {1+c+d \tan (a+b x)}{1+c-i d}\right )-i \log (1+i \tan (a+b x)) \log \left (\frac {1+c+d \tan (a+b x)}{1+c+i d}\right )+i \operatorname {PolyLog}\left (2,-\frac {d (-i+\tan (a+b x))}{-1+c+i d}\right )-i \operatorname {PolyLog}\left (2,-\frac {d (-i+\tan (a+b x))}{1+c+i d}\right )-i \operatorname {PolyLog}\left (2,-\frac {d (i+\tan (a+b x))}{-1+c-i d}\right )+i \operatorname {PolyLog}\left (2,-\frac {d (i+\tan (a+b x))}{1+c-i d}\right )}{4 a-2 i \log (1-i \tan (a+b x))+2 i \log (1+i \tan (a+b x))}\right ) \]
[In]
[Out]
Both result and optimal contain complex but leaf count of result is larger than twice the leaf count of optimal. 555 vs. \(2 (164 ) = 328\).
Time = 2.64 (sec) , antiderivative size = 556, normalized size of antiderivative = 2.87
method | result | size |
derivativedivides | \(\frac {d \arctan \left (\tan \left (b x +a \right )\right ) \operatorname {arccoth}\left (c +d \tan \left (b x +a \right )\right )+d^{2} \left (-\frac {\arctan \left (-\frac {c +d \tan \left (b x +a \right )}{d}+\frac {c}{d}\right ) \ln \left (d \left (\frac {c +d \tan \left (b x +a \right )}{d}-\frac {c}{d}\right )+c -1\right )}{2 d}+\frac {\arctan \left (-\frac {c +d \tan \left (b x +a \right )}{d}+\frac {c}{d}\right ) \ln \left (d \left (\frac {c +d \tan \left (b x +a \right )}{d}-\frac {c}{d}\right )+c +1\right )}{2 d}+\frac {i \ln \left (d \left (\frac {c +d \tan \left (b x +a \right )}{d}-\frac {c}{d}\right )+c -1\right ) \left (\ln \left (\frac {i d -d \left (\frac {c +d \tan \left (b x +a \right )}{d}-\frac {c}{d}\right )}{i d +c -1}\right )-\ln \left (\frac {i d +d \left (\frac {c +d \tan \left (b x +a \right )}{d}-\frac {c}{d}\right )}{i d -c +1}\right )\right )}{4 d}+\frac {i \left (\operatorname {dilog}\left (\frac {i d -d \left (\frac {c +d \tan \left (b x +a \right )}{d}-\frac {c}{d}\right )}{i d +c -1}\right )-\operatorname {dilog}\left (\frac {i d +d \left (\frac {c +d \tan \left (b x +a \right )}{d}-\frac {c}{d}\right )}{i d -c +1}\right )\right )}{4 d}-\frac {i \ln \left (d \left (\frac {c +d \tan \left (b x +a \right )}{d}-\frac {c}{d}\right )+c +1\right ) \left (\ln \left (\frac {i d -d \left (\frac {c +d \tan \left (b x +a \right )}{d}-\frac {c}{d}\right )}{i d +c +1}\right )-\ln \left (\frac {i d +d \left (\frac {c +d \tan \left (b x +a \right )}{d}-\frac {c}{d}\right )}{i d -c -1}\right )\right )}{4 d}-\frac {i \left (\operatorname {dilog}\left (\frac {i d -d \left (\frac {c +d \tan \left (b x +a \right )}{d}-\frac {c}{d}\right )}{i d +c +1}\right )-\operatorname {dilog}\left (\frac {i d +d \left (\frac {c +d \tan \left (b x +a \right )}{d}-\frac {c}{d}\right )}{i d -c -1}\right )\right )}{4 d}\right )}{b d}\) | \(556\) |
default | \(\frac {d \arctan \left (\tan \left (b x +a \right )\right ) \operatorname {arccoth}\left (c +d \tan \left (b x +a \right )\right )+d^{2} \left (-\frac {\arctan \left (-\frac {c +d \tan \left (b x +a \right )}{d}+\frac {c}{d}\right ) \ln \left (d \left (\frac {c +d \tan \left (b x +a \right )}{d}-\frac {c}{d}\right )+c -1\right )}{2 d}+\frac {\arctan \left (-\frac {c +d \tan \left (b x +a \right )}{d}+\frac {c}{d}\right ) \ln \left (d \left (\frac {c +d \tan \left (b x +a \right )}{d}-\frac {c}{d}\right )+c +1\right )}{2 d}+\frac {i \ln \left (d \left (\frac {c +d \tan \left (b x +a \right )}{d}-\frac {c}{d}\right )+c -1\right ) \left (\ln \left (\frac {i d -d \left (\frac {c +d \tan \left (b x +a \right )}{d}-\frac {c}{d}\right )}{i d +c -1}\right )-\ln \left (\frac {i d +d \left (\frac {c +d \tan \left (b x +a \right )}{d}-\frac {c}{d}\right )}{i d -c +1}\right )\right )}{4 d}+\frac {i \left (\operatorname {dilog}\left (\frac {i d -d \left (\frac {c +d \tan \left (b x +a \right )}{d}-\frac {c}{d}\right )}{i d +c -1}\right )-\operatorname {dilog}\left (\frac {i d +d \left (\frac {c +d \tan \left (b x +a \right )}{d}-\frac {c}{d}\right )}{i d -c +1}\right )\right )}{4 d}-\frac {i \ln \left (d \left (\frac {c +d \tan \left (b x +a \right )}{d}-\frac {c}{d}\right )+c +1\right ) \left (\ln \left (\frac {i d -d \left (\frac {c +d \tan \left (b x +a \right )}{d}-\frac {c}{d}\right )}{i d +c +1}\right )-\ln \left (\frac {i d +d \left (\frac {c +d \tan \left (b x +a \right )}{d}-\frac {c}{d}\right )}{i d -c -1}\right )\right )}{4 d}-\frac {i \left (\operatorname {dilog}\left (\frac {i d -d \left (\frac {c +d \tan \left (b x +a \right )}{d}-\frac {c}{d}\right )}{i d +c +1}\right )-\operatorname {dilog}\left (\frac {i d +d \left (\frac {c +d \tan \left (b x +a \right )}{d}-\frac {c}{d}\right )}{i d -c -1}\right )\right )}{4 d}\right )}{b d}\) | \(556\) |
risch | \(\text {Expression too large to display}\) | \(3962\) |
[In]
[Out]
Both result and optimal contain complex but leaf count of result is larger than twice the leaf count of optimal. 1184 vs. \(2 (136) = 272\).
Time = 0.32 (sec) , antiderivative size = 1184, normalized size of antiderivative = 6.10 \[ \int \coth ^{-1}(c+d \tan (a+b x)) \, dx=\text {Too large to display} \]
[In]
[Out]
\[ \int \coth ^{-1}(c+d \tan (a+b x)) \, dx=\int \operatorname {acoth}{\left (c + d \tan {\left (a + b x \right )} \right )}\, dx \]
[In]
[Out]
Both result and optimal contain complex but leaf count of result is larger than twice the leaf count of optimal. 372 vs. \(2 (136) = 272\).
Time = 0.36 (sec) , antiderivative size = 372, normalized size of antiderivative = 1.92 \[ \int \coth ^{-1}(c+d \tan (a+b x)) \, dx=\frac {4 \, {\left (b x + a\right )} \operatorname {arcoth}\left (d \tan \left (b x + a\right ) + c\right ) + {\left (\arctan \left (\frac {d^{2} \tan \left (b x + a\right ) + {\left (c + 1\right )} d}{c^{2} + d^{2} + 2 \, c + 1}, \frac {{\left (c + 1\right )} d \tan \left (b x + a\right ) + c^{2} + 2 \, c + 1}{c^{2} + d^{2} + 2 \, c + 1}\right ) - \arctan \left (\frac {d^{2} \tan \left (b x + a\right ) + {\left (c - 1\right )} d}{c^{2} + d^{2} - 2 \, c + 1}, \frac {{\left (c - 1\right )} d \tan \left (b x + a\right ) + c^{2} - 2 \, c + 1}{c^{2} + d^{2} - 2 \, c + 1}\right )\right )} \log \left (\tan \left (b x + a\right )^{2} + 1\right ) - {\left (b x + a\right )} \log \left (\frac {d^{2} \tan \left (b x + a\right )^{2} + 2 \, {\left (c + 1\right )} d \tan \left (b x + a\right ) + c^{2} + 2 \, c + 1}{c^{2} + d^{2} + 2 \, c + 1}\right ) + {\left (b x + a\right )} \log \left (\frac {d^{2} \tan \left (b x + a\right )^{2} + 2 \, {\left (c - 1\right )} d \tan \left (b x + a\right ) + c^{2} - 2 \, c + 1}{c^{2} + d^{2} - 2 \, c + 1}\right ) - i \, {\rm Li}_2\left (-\frac {i \, d \tan \left (b x + a\right ) - d}{i \, c + d + i}\right ) + i \, {\rm Li}_2\left (-\frac {i \, d \tan \left (b x + a\right ) - d}{i \, c + d - i}\right ) - i \, {\rm Li}_2\left (\frac {i \, d \tan \left (b x + a\right ) + d}{-i \, c + d + i}\right ) + i \, {\rm Li}_2\left (\frac {i \, d \tan \left (b x + a\right ) + d}{-i \, c + d - i}\right )}{4 \, b} \]
[In]
[Out]
\[ \int \coth ^{-1}(c+d \tan (a+b x)) \, dx=\int { \operatorname {arcoth}\left (d \tan \left (b x + a\right ) + c\right ) \,d x } \]
[In]
[Out]
Timed out. \[ \int \coth ^{-1}(c+d \tan (a+b x)) \, dx=\int \mathrm {acoth}\left (c+d\,\mathrm {tan}\left (a+b\,x\right )\right ) \,d x \]
[In]
[Out]