Integrand size = 13, antiderivative size = 15 \[ \int \frac {\tan ^2(x)}{a+a \cos (x)} \, dx=-\frac {\text {arctanh}(\sin (x))}{a}+\frac {\tan (x)}{a} \]
[Out]
Time = 0.06 (sec) , antiderivative size = 15, 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 = {2785, 3852, 8, 3855} \[ \int \frac {\tan ^2(x)}{a+a \cos (x)} \, dx=\frac {\tan (x)}{a}-\frac {\text {arctanh}(\sin (x))}{a} \]
[In]
[Out]
Rule 8
Rule 2785
Rule 3852
Rule 3855
Rubi steps \begin{align*} \text {integral}& = -\frac {\int \sec (x) \, dx}{a}+\frac {\int \sec ^2(x) \, dx}{a} \\ & = -\frac {\text {arctanh}(\sin (x))}{a}-\frac {\text {Subst}(\int 1 \, dx,x,-\tan (x))}{a} \\ & = -\frac {\text {arctanh}(\sin (x))}{a}+\frac {\tan (x)}{a} \\ \end{align*}
Leaf count is larger than twice the leaf count of optimal. \(39\) vs. \(2(15)=30\).
Time = 0.13 (sec) , antiderivative size = 39, normalized size of antiderivative = 2.60 \[ \int \frac {\tan ^2(x)}{a+a \cos (x)} \, dx=\frac {\log \left (\cos \left (\frac {x}{2}\right )-\sin \left (\frac {x}{2}\right )\right )-\log \left (\cos \left (\frac {x}{2}\right )+\sin \left (\frac {x}{2}\right )\right )+\tan (x)}{a} \]
[In]
[Out]
Result contains complex when optimal does not.
Time = 0.51 (sec) , antiderivative size = 44, normalized size of antiderivative = 2.93
method | result | size |
risch | \(\frac {2 i}{a \left ({\mathrm e}^{2 i x}+1\right )}-\frac {\ln \left ({\mathrm e}^{i x}+i\right )}{a}+\frac {\ln \left ({\mathrm e}^{i x}-i\right )}{a}\) | \(44\) |
default | \(\frac {-\frac {1}{\tan \left (\frac {x}{2}\right )+1}-\ln \left (\tan \left (\frac {x}{2}\right )+1\right )-\frac {1}{\tan \left (\frac {x}{2}\right )-1}+\ln \left (\tan \left (\frac {x}{2}\right )-1\right )}{a}\) | \(45\) |
[In]
[Out]
Leaf count of result is larger than twice the leaf count of optimal. 33 vs. \(2 (15) = 30\).
Time = 0.33 (sec) , antiderivative size = 33, normalized size of antiderivative = 2.20 \[ \int \frac {\tan ^2(x)}{a+a \cos (x)} \, dx=-\frac {\cos \left (x\right ) \log \left (\sin \left (x\right ) + 1\right ) - \cos \left (x\right ) \log \left (-\sin \left (x\right ) + 1\right ) - 2 \, \sin \left (x\right )}{2 \, a \cos \left (x\right )} \]
[In]
[Out]
\[ \int \frac {\tan ^2(x)}{a+a \cos (x)} \, dx=\frac {\int \frac {\tan ^{2}{\left (x \right )}}{\cos {\left (x \right )} + 1}\, dx}{a} \]
[In]
[Out]
Leaf count of result is larger than twice the leaf count of optimal. 61 vs. \(2 (15) = 30\).
Time = 0.21 (sec) , antiderivative size = 61, normalized size of antiderivative = 4.07 \[ \int \frac {\tan ^2(x)}{a+a \cos (x)} \, dx=-\frac {\log \left (\frac {\sin \left (x\right )}{\cos \left (x\right ) + 1} + 1\right )}{a} + \frac {\log \left (\frac {\sin \left (x\right )}{\cos \left (x\right ) + 1} - 1\right )}{a} + \frac {2 \, \sin \left (x\right )}{{\left (a - \frac {a \sin \left (x\right )^{2}}{{\left (\cos \left (x\right ) + 1\right )}^{2}}\right )} {\left (\cos \left (x\right ) + 1\right )}} \]
[In]
[Out]
Leaf count of result is larger than twice the leaf count of optimal. 45 vs. \(2 (15) = 30\).
Time = 0.33 (sec) , antiderivative size = 45, normalized size of antiderivative = 3.00 \[ \int \frac {\tan ^2(x)}{a+a \cos (x)} \, dx=-\frac {\log \left ({\left | \tan \left (\frac {1}{2} \, x\right ) + 1 \right |}\right )}{a} + \frac {\log \left ({\left | \tan \left (\frac {1}{2} \, x\right ) - 1 \right |}\right )}{a} - \frac {2 \, \tan \left (\frac {1}{2} \, x\right )}{{\left (\tan \left (\frac {1}{2} \, x\right )^{2} - 1\right )} a} \]
[In]
[Out]
Time = 13.53 (sec) , antiderivative size = 30, normalized size of antiderivative = 2.00 \[ \int \frac {\tan ^2(x)}{a+a \cos (x)} \, dx=-\frac {2\,\mathrm {atanh}\left (\mathrm {tan}\left (\frac {x}{2}\right )\right )}{a}-\frac {2\,\mathrm {tan}\left (\frac {x}{2}\right )}{a\,\left ({\mathrm {tan}\left (\frac {x}{2}\right )}^2-1\right )} \]
[In]
[Out]