Integrand size = 20, antiderivative size = 142 \[ \int \frac {\arctan (a x)}{x^2 \left (c+a^2 c x^2\right )^3} \, dx=-\frac {a}{16 c^3 \left (1+a^2 x^2\right )^2}-\frac {7 a}{16 c^3 \left (1+a^2 x^2\right )}-\frac {\arctan (a x)}{c^3 x}-\frac {a^2 x \arctan (a x)}{4 c^3 \left (1+a^2 x^2\right )^2}-\frac {7 a^2 x \arctan (a x)}{8 c^3 \left (1+a^2 x^2\right )}-\frac {15 a \arctan (a x)^2}{16 c^3}+\frac {a \log (x)}{c^3}-\frac {a \log \left (1+a^2 x^2\right )}{2 c^3} \]
[Out]
Time = 0.19 (sec) , antiderivative size = 142, normalized size of antiderivative = 1.00, number of steps used = 14, number of rules used = 11, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.550, Rules used = {5086, 5038, 4946, 272, 36, 29, 31, 5004, 5012, 267, 5016} \[ \int \frac {\arctan (a x)}{x^2 \left (c+a^2 c x^2\right )^3} \, dx=-\frac {7 a^2 x \arctan (a x)}{8 c^3 \left (a^2 x^2+1\right )}-\frac {a^2 x \arctan (a x)}{4 c^3 \left (a^2 x^2+1\right )^2}-\frac {7 a}{16 c^3 \left (a^2 x^2+1\right )}-\frac {a}{16 c^3 \left (a^2 x^2+1\right )^2}-\frac {a \log \left (a^2 x^2+1\right )}{2 c^3}-\frac {15 a \arctan (a x)^2}{16 c^3}-\frac {\arctan (a x)}{c^3 x}+\frac {a \log (x)}{c^3} \]
[In]
[Out]
Rule 29
Rule 31
Rule 36
Rule 267
Rule 272
Rule 4946
Rule 5004
Rule 5012
Rule 5016
Rule 5038
Rule 5086
Rubi steps \begin{align*} \text {integral}& = -\left (a^2 \int \frac {\arctan (a x)}{\left (c+a^2 c x^2\right )^3} \, dx\right )+\frac {\int \frac {\arctan (a x)}{x^2 \left (c+a^2 c x^2\right )^2} \, dx}{c} \\ & = -\frac {a}{16 c^3 \left (1+a^2 x^2\right )^2}-\frac {a^2 x \arctan (a x)}{4 c^3 \left (1+a^2 x^2\right )^2}+\frac {\int \frac {\arctan (a x)}{x^2 \left (c+a^2 c x^2\right )} \, dx}{c^2}-\frac {\left (3 a^2\right ) \int \frac {\arctan (a x)}{\left (c+a^2 c x^2\right )^2} \, dx}{4 c}-\frac {a^2 \int \frac {\arctan (a x)}{\left (c+a^2 c x^2\right )^2} \, dx}{c} \\ & = -\frac {a}{16 c^3 \left (1+a^2 x^2\right )^2}-\frac {a^2 x \arctan (a x)}{4 c^3 \left (1+a^2 x^2\right )^2}-\frac {7 a^2 x \arctan (a x)}{8 c^3 \left (1+a^2 x^2\right )}-\frac {7 a \arctan (a x)^2}{16 c^3}+\frac {\int \frac {\arctan (a x)}{x^2} \, dx}{c^3}-\frac {a^2 \int \frac {\arctan (a x)}{c+a^2 c x^2} \, dx}{c^2}+\frac {\left (3 a^3\right ) \int \frac {x}{\left (c+a^2 c x^2\right )^2} \, dx}{8 c}+\frac {a^3 \int \frac {x}{\left (c+a^2 c x^2\right )^2} \, dx}{2 c} \\ & = -\frac {a}{16 c^3 \left (1+a^2 x^2\right )^2}-\frac {7 a}{16 c^3 \left (1+a^2 x^2\right )}-\frac {\arctan (a x)}{c^3 x}-\frac {a^2 x \arctan (a x)}{4 c^3 \left (1+a^2 x^2\right )^2}-\frac {7 a^2 x \arctan (a x)}{8 c^3 \left (1+a^2 x^2\right )}-\frac {15 a \arctan (a x)^2}{16 c^3}+\frac {a \int \frac {1}{x \left (1+a^2 x^2\right )} \, dx}{c^3} \\ & = -\frac {a}{16 c^3 \left (1+a^2 x^2\right )^2}-\frac {7 a}{16 c^3 \left (1+a^2 x^2\right )}-\frac {\arctan (a x)}{c^3 x}-\frac {a^2 x \arctan (a x)}{4 c^3 \left (1+a^2 x^2\right )^2}-\frac {7 a^2 x \arctan (a x)}{8 c^3 \left (1+a^2 x^2\right )}-\frac {15 a \arctan (a x)^2}{16 c^3}+\frac {a \text {Subst}\left (\int \frac {1}{x \left (1+a^2 x\right )} \, dx,x,x^2\right )}{2 c^3} \\ & = -\frac {a}{16 c^3 \left (1+a^2 x^2\right )^2}-\frac {7 a}{16 c^3 \left (1+a^2 x^2\right )}-\frac {\arctan (a x)}{c^3 x}-\frac {a^2 x \arctan (a x)}{4 c^3 \left (1+a^2 x^2\right )^2}-\frac {7 a^2 x \arctan (a x)}{8 c^3 \left (1+a^2 x^2\right )}-\frac {15 a \arctan (a x)^2}{16 c^3}+\frac {a \text {Subst}\left (\int \frac {1}{x} \, dx,x,x^2\right )}{2 c^3}-\frac {a^3 \text {Subst}\left (\int \frac {1}{1+a^2 x} \, dx,x,x^2\right )}{2 c^3} \\ & = -\frac {a}{16 c^3 \left (1+a^2 x^2\right )^2}-\frac {7 a}{16 c^3 \left (1+a^2 x^2\right )}-\frac {\arctan (a x)}{c^3 x}-\frac {a^2 x \arctan (a x)}{4 c^3 \left (1+a^2 x^2\right )^2}-\frac {7 a^2 x \arctan (a x)}{8 c^3 \left (1+a^2 x^2\right )}-\frac {15 a \arctan (a x)^2}{16 c^3}+\frac {a \log (x)}{c^3}-\frac {a \log \left (1+a^2 x^2\right )}{2 c^3} \\ \end{align*}
Time = 0.09 (sec) , antiderivative size = 118, normalized size of antiderivative = 0.83 \[ \int \frac {\arctan (a x)}{x^2 \left (c+a^2 c x^2\right )^3} \, dx=\frac {-2 \left (8+25 a^2 x^2+15 a^4 x^4\right ) \arctan (a x)-15 a x \left (1+a^2 x^2\right )^2 \arctan (a x)^2+a x \left (-8-7 a^2 x^2+16 \left (1+a^2 x^2\right )^2 \log (x)-8 \left (1+a^2 x^2\right )^2 \log \left (1+a^2 x^2\right )\right )}{16 c^3 x \left (1+a^2 x^2\right )^2} \]
[In]
[Out]
Time = 0.40 (sec) , antiderivative size = 136, normalized size of antiderivative = 0.96
method | result | size |
derivativedivides | \(a \left (-\frac {\arctan \left (a x \right )}{c^{3} a x}-\frac {7 \arctan \left (a x \right ) a^{3} x^{3}}{8 c^{3} \left (a^{2} x^{2}+1\right )^{2}}-\frac {9 a x \arctan \left (a x \right )}{8 c^{3} \left (a^{2} x^{2}+1\right )^{2}}-\frac {15 \arctan \left (a x \right )^{2}}{8 c^{3}}-\frac {-\frac {15 \arctan \left (a x \right )^{2}}{2}-8 \ln \left (a x \right )+\frac {7}{2 \left (a^{2} x^{2}+1\right )}+\frac {1}{2 \left (a^{2} x^{2}+1\right )^{2}}+4 \ln \left (a^{2} x^{2}+1\right )}{8 c^{3}}\right )\) | \(136\) |
default | \(a \left (-\frac {\arctan \left (a x \right )}{c^{3} a x}-\frac {7 \arctan \left (a x \right ) a^{3} x^{3}}{8 c^{3} \left (a^{2} x^{2}+1\right )^{2}}-\frac {9 a x \arctan \left (a x \right )}{8 c^{3} \left (a^{2} x^{2}+1\right )^{2}}-\frac {15 \arctan \left (a x \right )^{2}}{8 c^{3}}-\frac {-\frac {15 \arctan \left (a x \right )^{2}}{2}-8 \ln \left (a x \right )+\frac {7}{2 \left (a^{2} x^{2}+1\right )}+\frac {1}{2 \left (a^{2} x^{2}+1\right )^{2}}+4 \ln \left (a^{2} x^{2}+1\right )}{8 c^{3}}\right )\) | \(136\) |
parts | \(-\frac {7 \arctan \left (a x \right ) a^{4} x^{3}}{8 c^{3} \left (a^{2} x^{2}+1\right )^{2}}-\frac {9 a^{2} x \arctan \left (a x \right )}{8 c^{3} \left (a^{2} x^{2}+1\right )^{2}}-\frac {15 a \arctan \left (a x \right )^{2}}{8 c^{3}}-\frac {\arctan \left (a x \right )}{c^{3} x}-\frac {-\frac {15 a \arctan \left (a x \right )^{2}}{16}-\frac {a \left (8 \ln \left (a x \right )-\frac {7}{2 \left (a^{2} x^{2}+1\right )}-\frac {1}{2 \left (a^{2} x^{2}+1\right )^{2}}-4 \ln \left (a^{2} x^{2}+1\right )\right )}{8}}{c^{3}}\) | \(139\) |
parallelrisch | \(\frac {-15 a^{5} \arctan \left (a x \right )^{2} x^{5}+16 \ln \left (x \right ) x^{5} a^{5}-8 \ln \left (a^{2} x^{2}+1\right ) x^{5} a^{5}+8 a^{5} x^{5}-30 \arctan \left (a x \right ) a^{4} x^{4}-30 a^{3} \arctan \left (a x \right )^{2} x^{3}+32 \ln \left (x \right ) a^{3} x^{3}-16 a^{3} \ln \left (a^{2} x^{2}+1\right ) x^{3}+9 a^{3} x^{3}-50 a^{2} \arctan \left (a x \right ) x^{2}-15 a \arctan \left (a x \right )^{2} x +16 a x \ln \left (x \right )-8 a \ln \left (a^{2} x^{2}+1\right ) x -16 \arctan \left (a x \right )}{16 x \,c^{3} \left (a^{2} x^{2}+1\right )^{2}}\) | \(181\) |
risch | \(-\frac {7 a}{32 c^{3} \left (i a x +1\right )}+\frac {a \ln \left (i a x \right )}{2 c^{3}}-\frac {a \ln \left (i a x +1\right )}{2 c^{3}}-\frac {a}{64 c^{3} \left (i a x +1\right )^{2}}+\frac {15 a \ln \left (i a x +1\right )^{2}}{64 c^{3}}+\frac {a}{64 c^{3} \left (i a x -1\right )}+\frac {15 a \operatorname {dilog}\left (\frac {1}{2}+\frac {i a x}{2}\right )}{32 c^{3}}-\frac {7 a}{32 c^{3} \left (-i a x +1\right )}+\frac {a \ln \left (-i a x \right )}{2 c^{3}}-\frac {a \ln \left (-i a x +1\right )}{2 c^{3}}-\frac {a}{64 c^{3} \left (-i a x +1\right )^{2}}+\frac {15 a \ln \left (-i a x +1\right )^{2}}{64 c^{3}}+\frac {a}{64 c^{3} \left (-i a x -1\right )}+\frac {15 a \operatorname {dilog}\left (\frac {1}{2}-\frac {i a x}{2}\right )}{32 c^{3}}-\frac {7 i a^{2} \ln \left (i a x +1\right ) x}{64 c^{3} \left (i a x -1\right )}+\frac {15 a \ln \left (a^{2} x^{2}+1\right )}{128 c^{3}}-\frac {a \ln \left (i a x +1\right )}{32 c^{3} \left (i a x +1\right )^{2}}-\frac {7 a \ln \left (i a x +1\right )}{64 c^{3} \left (i a x -1\right )}+\frac {3 a \ln \left (i a x +1\right )}{128 c^{3} \left (i a x -1\right )^{2}}-\frac {15 a \ln \left (\frac {1}{2}-\frac {i a x}{2}\right ) \ln \left (i a x +1\right )}{32 c^{3}}+\frac {i \ln \left (i a x +1\right )}{2 c^{3} x}-\frac {7 a \ln \left (i a x +1\right )}{32 c^{3} \left (i a x +1\right )}-\frac {7 a \ln \left (-i a x +1\right )}{32 c^{3} \left (-i a x +1\right )}-\frac {a \ln \left (-i a x +1\right )}{32 c^{3} \left (-i a x +1\right )^{2}}-\frac {7 a \ln \left (-i a x +1\right )}{64 c^{3} \left (-i a x -1\right )}+\frac {3 a \ln \left (-i a x +1\right )}{128 c^{3} \left (-i a x -1\right )^{2}}+\frac {15 a \ln \left (\frac {1}{2}+\frac {i a x}{2}\right ) \ln \left (\frac {1}{2}-\frac {i a x}{2}\right )}{16 c^{3}}-\frac {15 a \ln \left (\frac {1}{2}+\frac {i a x}{2}\right ) \ln \left (-i a x +1\right )}{32 c^{3}}-\frac {i \ln \left (-i a x +1\right )}{2 c^{3} x}+\frac {a^{3} \ln \left (-i a x +1\right ) x^{2}}{128 c^{3} \left (-i a x -1\right )^{2}}+\frac {a^{3} \ln \left (i a x +1\right ) x^{2}}{128 c^{3} \left (i a x -1\right )^{2}}+\frac {i a^{2} \ln \left (i a x +1\right ) x}{64 c^{3} \left (i a x -1\right )^{2}}-\frac {i a^{2} \ln \left (-i a x +1\right ) x}{64 c^{3} \left (-i a x -1\right )^{2}}+\frac {7 i a^{2} \ln \left (-i a x +1\right ) x}{64 c^{3} \left (-i a x -1\right )}\) | \(668\) |
[In]
[Out]
none
Time = 0.25 (sec) , antiderivative size = 149, normalized size of antiderivative = 1.05 \[ \int \frac {\arctan (a x)}{x^2 \left (c+a^2 c x^2\right )^3} \, dx=-\frac {7 \, a^{3} x^{3} + 15 \, {\left (a^{5} x^{5} + 2 \, a^{3} x^{3} + a x\right )} \arctan \left (a x\right )^{2} + 8 \, a x + 2 \, {\left (15 \, a^{4} x^{4} + 25 \, a^{2} x^{2} + 8\right )} \arctan \left (a x\right ) + 8 \, {\left (a^{5} x^{5} + 2 \, a^{3} x^{3} + a x\right )} \log \left (a^{2} x^{2} + 1\right ) - 16 \, {\left (a^{5} x^{5} + 2 \, a^{3} x^{3} + a x\right )} \log \left (x\right )}{16 \, {\left (a^{4} c^{3} x^{5} + 2 \, a^{2} c^{3} x^{3} + c^{3} x\right )}} \]
[In]
[Out]
Leaf count of result is larger than twice the leaf count of optimal. 604 vs. \(2 (134) = 268\).
Time = 1.15 (sec) , antiderivative size = 604, normalized size of antiderivative = 4.25 \[ \int \frac {\arctan (a x)}{x^2 \left (c+a^2 c x^2\right )^3} \, dx=\begin {cases} \frac {16 a^{5} x^{5} \log {\left (x \right )}}{16 a^{4} c^{3} x^{5} + 32 a^{2} c^{3} x^{3} + 16 c^{3} x} - \frac {8 a^{5} x^{5} \log {\left (x^{2} + \frac {1}{a^{2}} \right )}}{16 a^{4} c^{3} x^{5} + 32 a^{2} c^{3} x^{3} + 16 c^{3} x} - \frac {15 a^{5} x^{5} \operatorname {atan}^{2}{\left (a x \right )}}{16 a^{4} c^{3} x^{5} + 32 a^{2} c^{3} x^{3} + 16 c^{3} x} - \frac {30 a^{4} x^{4} \operatorname {atan}{\left (a x \right )}}{16 a^{4} c^{3} x^{5} + 32 a^{2} c^{3} x^{3} + 16 c^{3} x} + \frac {32 a^{3} x^{3} \log {\left (x \right )}}{16 a^{4} c^{3} x^{5} + 32 a^{2} c^{3} x^{3} + 16 c^{3} x} - \frac {16 a^{3} x^{3} \log {\left (x^{2} + \frac {1}{a^{2}} \right )}}{16 a^{4} c^{3} x^{5} + 32 a^{2} c^{3} x^{3} + 16 c^{3} x} - \frac {30 a^{3} x^{3} \operatorname {atan}^{2}{\left (a x \right )}}{16 a^{4} c^{3} x^{5} + 32 a^{2} c^{3} x^{3} + 16 c^{3} x} - \frac {7 a^{3} x^{3}}{16 a^{4} c^{3} x^{5} + 32 a^{2} c^{3} x^{3} + 16 c^{3} x} - \frac {50 a^{2} x^{2} \operatorname {atan}{\left (a x \right )}}{16 a^{4} c^{3} x^{5} + 32 a^{2} c^{3} x^{3} + 16 c^{3} x} + \frac {16 a x \log {\left (x \right )}}{16 a^{4} c^{3} x^{5} + 32 a^{2} c^{3} x^{3} + 16 c^{3} x} - \frac {8 a x \log {\left (x^{2} + \frac {1}{a^{2}} \right )}}{16 a^{4} c^{3} x^{5} + 32 a^{2} c^{3} x^{3} + 16 c^{3} x} - \frac {15 a x \operatorname {atan}^{2}{\left (a x \right )}}{16 a^{4} c^{3} x^{5} + 32 a^{2} c^{3} x^{3} + 16 c^{3} x} - \frac {8 a x}{16 a^{4} c^{3} x^{5} + 32 a^{2} c^{3} x^{3} + 16 c^{3} x} - \frac {16 \operatorname {atan}{\left (a x \right )}}{16 a^{4} c^{3} x^{5} + 32 a^{2} c^{3} x^{3} + 16 c^{3} x} & \text {for}\: a \neq 0 \\0 & \text {otherwise} \end {cases} \]
[In]
[Out]
none
Time = 0.31 (sec) , antiderivative size = 181, normalized size of antiderivative = 1.27 \[ \int \frac {\arctan (a x)}{x^2 \left (c+a^2 c x^2\right )^3} \, dx=-\frac {1}{8} \, {\left (\frac {15 \, a^{4} x^{4} + 25 \, a^{2} x^{2} + 8}{a^{4} c^{3} x^{5} + 2 \, a^{2} c^{3} x^{3} + c^{3} x} + \frac {15 \, a \arctan \left (a x\right )}{c^{3}}\right )} \arctan \left (a x\right ) - \frac {{\left (7 \, a^{2} x^{2} - 15 \, {\left (a^{4} x^{4} + 2 \, a^{2} x^{2} + 1\right )} \arctan \left (a x\right )^{2} + 8 \, {\left (a^{4} x^{4} + 2 \, a^{2} x^{2} + 1\right )} \log \left (a^{2} x^{2} + 1\right ) - 16 \, {\left (a^{4} x^{4} + 2 \, a^{2} x^{2} + 1\right )} \log \left (x\right ) + 8\right )} a}{16 \, {\left (a^{4} c^{3} x^{4} + 2 \, a^{2} c^{3} x^{2} + c^{3}\right )}} \]
[In]
[Out]
\[ \int \frac {\arctan (a x)}{x^2 \left (c+a^2 c x^2\right )^3} \, dx=\int { \frac {\arctan \left (a x\right )}{{\left (a^{2} c x^{2} + c\right )}^{3} x^{2}} \,d x } \]
[In]
[Out]
Time = 0.65 (sec) , antiderivative size = 133, normalized size of antiderivative = 0.94 \[ \int \frac {\arctan (a x)}{x^2 \left (c+a^2 c x^2\right )^3} \, dx=\frac {a\,\ln \left (x\right )}{c^3}-\frac {a\,\ln \left (a^2\,x^2+1\right )}{2\,c^3}-\frac {\frac {7\,a^3\,x^2}{2}+4\,a}{8\,a^4\,c^3\,x^4+16\,a^2\,c^3\,x^2+8\,c^3}-\frac {\mathrm {atan}\left (a\,x\right )\,\left (\frac {1}{a^2\,c^3}+\frac {25\,x^2}{8\,c^3}+\frac {15\,a^2\,x^4}{8\,c^3}\right )}{\frac {x}{a^2}+2\,x^3+a^2\,x^5}-\frac {15\,a\,{\mathrm {atan}\left (a\,x\right )}^2}{16\,c^3} \]
[In]
[Out]