Optimal. Leaf size=127 \[ -\frac {3 \tanh ^{-1}(a x)^2}{32 a^4}+\frac {x^4}{32 \left (1-a^2 x^2\right )^2}+\frac {x^4 \tanh ^{-1}(a x)^2}{4 \left (1-a^2 x^2\right )^2}-\frac {x^3 \tanh ^{-1}(a x)}{8 a \left (1-a^2 x^2\right )^2}-\frac {3}{32 a^4 \left (1-a^2 x^2\right )}+\frac {3 x \tanh ^{-1}(a x)}{16 a^3 \left (1-a^2 x^2\right )} \]
[Out]
________________________________________________________________________________________
Rubi [A] time = 0.18, antiderivative size = 127, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 4, integrand size = 22, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.182, Rules used = {6008, 6002, 5998, 5948} \[ \frac {x^4}{32 \left (1-a^2 x^2\right )^2}-\frac {3}{32 a^4 \left (1-a^2 x^2\right )}+\frac {x^4 \tanh ^{-1}(a x)^2}{4 \left (1-a^2 x^2\right )^2}-\frac {x^3 \tanh ^{-1}(a x)}{8 a \left (1-a^2 x^2\right )^2}+\frac {3 x \tanh ^{-1}(a x)}{16 a^3 \left (1-a^2 x^2\right )}-\frac {3 \tanh ^{-1}(a x)^2}{32 a^4} \]
Antiderivative was successfully verified.
[In]
[Out]
Rule 5948
Rule 5998
Rule 6002
Rule 6008
Rubi steps
\begin {align*} \int \frac {x^3 \tanh ^{-1}(a x)^2}{\left (1-a^2 x^2\right )^3} \, dx &=\frac {x^4 \tanh ^{-1}(a x)^2}{4 \left (1-a^2 x^2\right )^2}-\frac {1}{2} a \int \frac {x^4 \tanh ^{-1}(a x)}{\left (1-a^2 x^2\right )^3} \, dx\\ &=\frac {x^4}{32 \left (1-a^2 x^2\right )^2}-\frac {x^3 \tanh ^{-1}(a x)}{8 a \left (1-a^2 x^2\right )^2}+\frac {x^4 \tanh ^{-1}(a x)^2}{4 \left (1-a^2 x^2\right )^2}+\frac {3 \int \frac {x^2 \tanh ^{-1}(a x)}{\left (1-a^2 x^2\right )^2} \, dx}{8 a}\\ &=\frac {x^4}{32 \left (1-a^2 x^2\right )^2}-\frac {3}{32 a^4 \left (1-a^2 x^2\right )}-\frac {x^3 \tanh ^{-1}(a x)}{8 a \left (1-a^2 x^2\right )^2}+\frac {3 x \tanh ^{-1}(a x)}{16 a^3 \left (1-a^2 x^2\right )}+\frac {x^4 \tanh ^{-1}(a x)^2}{4 \left (1-a^2 x^2\right )^2}-\frac {3 \int \frac {\tanh ^{-1}(a x)}{1-a^2 x^2} \, dx}{16 a^3}\\ &=\frac {x^4}{32 \left (1-a^2 x^2\right )^2}-\frac {3}{32 a^4 \left (1-a^2 x^2\right )}-\frac {x^3 \tanh ^{-1}(a x)}{8 a \left (1-a^2 x^2\right )^2}+\frac {3 x \tanh ^{-1}(a x)}{16 a^3 \left (1-a^2 x^2\right )}-\frac {3 \tanh ^{-1}(a x)^2}{32 a^4}+\frac {x^4 \tanh ^{-1}(a x)^2}{4 \left (1-a^2 x^2\right )^2}\\ \end {align*}
________________________________________________________________________________________
Mathematica [A] time = 0.10, size = 71, normalized size = 0.56 \[ \frac {\left (6 a x-10 a^3 x^3\right ) \tanh ^{-1}(a x)+5 a^2 x^2+\left (5 a^4 x^4+6 a^2 x^2-3\right ) \tanh ^{-1}(a x)^2-4}{32 a^4 \left (a^2 x^2-1\right )^2} \]
Antiderivative was successfully verified.
[In]
[Out]
________________________________________________________________________________________
fricas [A] time = 0.70, size = 99, normalized size = 0.78 \[ \frac {20 \, a^{2} x^{2} + {\left (5 \, a^{4} x^{4} + 6 \, a^{2} x^{2} - 3\right )} \log \left (-\frac {a x + 1}{a x - 1}\right )^{2} - 4 \, {\left (5 \, a^{3} x^{3} - 3 \, a x\right )} \log \left (-\frac {a x + 1}{a x - 1}\right ) - 16}{128 \, {\left (a^{8} x^{4} - 2 \, a^{6} x^{2} + a^{4}\right )}} \]
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
giac [B] time = 0.17, size = 250, normalized size = 1.97 \[ \frac {1}{512} \, {\left (2 \, {\left (\frac {{\left (a x - 1\right )}^{2} {\left (\frac {4 \, {\left (a x + 1\right )}}{a x - 1} + 1\right )}}{{\left (a x + 1\right )}^{2} a^{5}} + \frac {{\left (a x + 1\right )}^{2}}{{\left (a x - 1\right )}^{2} a^{5}} + \frac {4 \, {\left (a x + 1\right )}}{{\left (a x - 1\right )} a^{5}}\right )} \log \left (-\frac {a x + 1}{a x - 1}\right )^{2} + 2 \, {\left (\frac {{\left (a x - 1\right )}^{2} {\left (\frac {8 \, {\left (a x + 1\right )}}{a x - 1} + 1\right )}}{{\left (a x + 1\right )}^{2} a^{5}} - \frac {{\left (a x + 1\right )}^{2}}{{\left (a x - 1\right )}^{2} a^{5}} - \frac {8 \, {\left (a x + 1\right )}}{{\left (a x - 1\right )} a^{5}}\right )} \log \left (-\frac {a x + 1}{a x - 1}\right ) + \frac {{\left (a x - 1\right )}^{2} {\left (\frac {16 \, {\left (a x + 1\right )}}{a x - 1} + 1\right )}}{{\left (a x + 1\right )}^{2} a^{5}} + \frac {{\left (a x + 1\right )}^{2}}{{\left (a x - 1\right )}^{2} a^{5}} + \frac {16 \, {\left (a x + 1\right )}}{{\left (a x - 1\right )} a^{5}}\right )} a \]
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
maple [B] time = 0.07, size = 297, normalized size = 2.34 \[ \frac {\arctanh \left (a x \right )^{2}}{16 a^{4} \left (a x -1\right )^{2}}+\frac {3 \arctanh \left (a x \right )^{2}}{16 a^{4} \left (a x -1\right )}+\frac {\arctanh \left (a x \right )^{2}}{16 a^{4} \left (a x +1\right )^{2}}-\frac {3 \arctanh \left (a x \right )^{2}}{16 a^{4} \left (a x +1\right )}-\frac {\arctanh \left (a x \right )}{32 a^{4} \left (a x -1\right )^{2}}-\frac {5 \arctanh \left (a x \right )}{32 a^{4} \left (a x -1\right )}-\frac {5 \arctanh \left (a x \right ) \ln \left (a x -1\right )}{32 a^{4}}+\frac {\arctanh \left (a x \right )}{32 a^{4} \left (a x +1\right )^{2}}-\frac {5 \arctanh \left (a x \right )}{32 a^{4} \left (a x +1\right )}+\frac {5 \arctanh \left (a x \right ) \ln \left (a x +1\right )}{32 a^{4}}-\frac {5 \ln \left (a x -1\right )^{2}}{128 a^{4}}+\frac {5 \ln \left (a x -1\right ) \ln \left (\frac {1}{2}+\frac {a x}{2}\right )}{64 a^{4}}-\frac {5 \ln \left (a x +1\right )^{2}}{128 a^{4}}-\frac {5 \ln \left (-\frac {a x}{2}+\frac {1}{2}\right ) \ln \left (\frac {1}{2}+\frac {a x}{2}\right )}{64 a^{4}}+\frac {5 \ln \left (-\frac {a x}{2}+\frac {1}{2}\right ) \ln \left (a x +1\right )}{64 a^{4}}+\frac {1}{128 a^{4} \left (a x -1\right )^{2}}+\frac {9}{128 a^{4} \left (a x -1\right )}+\frac {1}{128 a^{4} \left (a x +1\right )^{2}}-\frac {9}{128 a^{4} \left (a x +1\right )} \]
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
maxima [B] time = 0.33, size = 226, normalized size = 1.78 \[ -\frac {1}{32} \, a {\left (\frac {2 \, {\left (5 \, a^{2} x^{3} - 3 \, x\right )}}{a^{8} x^{4} - 2 \, a^{6} x^{2} + a^{4}} - \frac {5 \, \log \left (a x + 1\right )}{a^{5}} + \frac {5 \, \log \left (a x - 1\right )}{a^{5}}\right )} \operatorname {artanh}\left (a x\right ) + \frac {{\left (20 \, a^{2} x^{2} - 5 \, {\left (a^{4} x^{4} - 2 \, a^{2} x^{2} + 1\right )} \log \left (a x + 1\right )^{2} + 10 \, {\left (a^{4} x^{4} - 2 \, a^{2} x^{2} + 1\right )} \log \left (a x + 1\right ) \log \left (a x - 1\right ) - 5 \, {\left (a^{4} x^{4} - 2 \, a^{2} x^{2} + 1\right )} \log \left (a x - 1\right )^{2} - 16\right )} a^{2}}{128 \, {\left (a^{10} x^{4} - 2 \, a^{8} x^{2} + a^{6}\right )}} + \frac {{\left (2 \, a^{2} x^{2} - 1\right )} \operatorname {artanh}\left (a x\right )^{2}}{4 \, {\left (a^{8} x^{4} - 2 \, a^{6} x^{2} + a^{4}\right )}} \]
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
mupad [B] time = 1.53, size = 372, normalized size = 2.93 \[ {\ln \left (a\,x+1\right )}^2\,\left (\frac {5}{128\,a^4}-\frac {\frac {1}{16\,a^5}-\frac {x^2}{8\,a^3}}{\frac {1}{a}-2\,a\,x^2+a^3\,x^4}\right )-\ln \left (1-a\,x\right )\,\left (\frac {\frac {3\,x}{8}+a\,x^2-\frac {3}{4\,a}-\frac {5\,a^2\,x^3}{8}}{8\,a^7\,x^4-16\,a^5\,x^2+8\,a^3}+\frac {\frac {3\,x}{8}-a\,x^2+\frac {3}{4\,a}-\frac {5\,a^2\,x^3}{8}}{8\,a^7\,x^4-16\,a^5\,x^2+8\,a^3}-\ln \left (a\,x+1\right )\,\left (\frac {\frac {1}{4\,a^4}-\frac {x^2}{2\,a^2}}{2\,a^4\,x^4-4\,a^2\,x^2+2}-\frac {5\,\left (a^4\,x^4-2\,a^2\,x^2+1\right )}{32\,a^4\,\left (2\,a^4\,x^4-4\,a^2\,x^2+2\right )}\right )\right )-{\ln \left (1-a\,x\right )}^2\,\left (\frac {\frac {1}{4\,a^4}-\frac {x^2}{2\,a^2}}{4\,a^4\,x^4-8\,a^2\,x^2+4}-\frac {5}{128\,a^4}\right )-\frac {\frac {2}{a^2}-\frac {5\,x^2}{2}}{16\,a^6\,x^4-32\,a^4\,x^2+16\,a^2}+\frac {\ln \left (a\,x+1\right )\,\left (\frac {3\,x}{32\,a^4}-\frac {5\,x^3}{32\,a^2}\right )}{\frac {1}{a}-2\,a\,x^2+a^3\,x^4} \]
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
sympy [F] time = 0.00, size = 0, normalized size = 0.00 \[ - \int \frac {x^{3} \operatorname {atanh}^{2}{\left (a x \right )}}{a^{6} x^{6} - 3 a^{4} x^{4} + 3 a^{2} x^{2} - 1}\, dx \]
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________