Optimal. Leaf size=77 \[ -\frac {x^3}{16 a \left (1-a^2 x^2\right )^2}+\frac {3 x}{32 a^3 \left (1-a^2 x^2\right )}-\frac {3 \tanh ^{-1}(a x)}{32 a^4}+\frac {x^4 \tanh ^{-1}(a x)}{4 \left (1-a^2 x^2\right )^2} \]
[Out]
________________________________________________________________________________________
Rubi [A]
time = 0.05, antiderivative size = 77, normalized size of antiderivative = 1.00, number of steps
used = 4, number of rules used = 3, integrand size = 20, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.150, Rules used = {6155, 294, 212}
\begin {gather*} -\frac {3 \tanh ^{-1}(a x)}{32 a^4}+\frac {x^4 \tanh ^{-1}(a x)}{4 \left (1-a^2 x^2\right )^2}-\frac {x^3}{16 a \left (1-a^2 x^2\right )^2}+\frac {3 x}{32 a^3 \left (1-a^2 x^2\right )} \end {gather*}
Antiderivative was successfully verified.
[In]
[Out]
Rule 212
Rule 294
Rule 6155
Rubi steps
\begin {align*} \int \frac {x^3 \tanh ^{-1}(a x)}{\left (1-a^2 x^2\right )^3} \, dx &=\frac {x^4 \tanh ^{-1}(a x)}{4 \left (1-a^2 x^2\right )^2}-\frac {1}{4} a \int \frac {x^4}{\left (1-a^2 x^2\right )^3} \, dx\\ &=-\frac {x^3}{16 a \left (1-a^2 x^2\right )^2}+\frac {x^4 \tanh ^{-1}(a x)}{4 \left (1-a^2 x^2\right )^2}+\frac {3 \int \frac {x^2}{\left (1-a^2 x^2\right )^2} \, dx}{16 a}\\ &=-\frac {x^3}{16 a \left (1-a^2 x^2\right )^2}+\frac {3 x}{32 a^3 \left (1-a^2 x^2\right )}+\frac {x^4 \tanh ^{-1}(a x)}{4 \left (1-a^2 x^2\right )^2}-\frac {3 \int \frac {1}{1-a^2 x^2} \, dx}{32 a^3}\\ &=-\frac {x^3}{16 a \left (1-a^2 x^2\right )^2}+\frac {3 x}{32 a^3 \left (1-a^2 x^2\right )}-\frac {3 \tanh ^{-1}(a x)}{32 a^4}+\frac {x^4 \tanh ^{-1}(a x)}{4 \left (1-a^2 x^2\right )^2}\\ \end {align*}
________________________________________________________________________________________
Mathematica [A]
time = 0.04, size = 98, normalized size = 1.27 \begin {gather*} -\frac {x}{16 a^3 \left (-1+a^2 x^2\right )^2}-\frac {5 x}{32 a^3 \left (-1+a^2 x^2\right )}+\frac {\left (-1+2 a^2 x^2\right ) \tanh ^{-1}(a x)}{4 a^4 \left (-1+a^2 x^2\right )^2}-\frac {5 \log (1-a x)}{64 a^4}+\frac {5 \log (1+a x)}{64 a^4} \end {gather*}
Antiderivative was successfully verified.
[In]
[Out]
________________________________________________________________________________________
Maple [A]
time = 0.61, size = 110, normalized size = 1.43
method | result | size |
derivativedivides | \(\frac {\frac {\arctanh \left (a x \right )}{16 \left (a x -1\right )^{2}}+\frac {3 \arctanh \left (a x \right )}{16 \left (a x -1\right )}+\frac {\arctanh \left (a x \right )}{16 \left (a x +1\right )^{2}}-\frac {3 \arctanh \left (a x \right )}{16 \left (a x +1\right )}-\frac {1}{64 \left (a x -1\right )^{2}}-\frac {5}{64 \left (a x -1\right )}-\frac {5 \ln \left (a x -1\right )}{64}+\frac {1}{64 \left (a x +1\right )^{2}}-\frac {5}{64 \left (a x +1\right )}+\frac {5 \ln \left (a x +1\right )}{64}}{a^{4}}\) | \(110\) |
default | \(\frac {\frac {\arctanh \left (a x \right )}{16 \left (a x -1\right )^{2}}+\frac {3 \arctanh \left (a x \right )}{16 \left (a x -1\right )}+\frac {\arctanh \left (a x \right )}{16 \left (a x +1\right )^{2}}-\frac {3 \arctanh \left (a x \right )}{16 \left (a x +1\right )}-\frac {1}{64 \left (a x -1\right )^{2}}-\frac {5}{64 \left (a x -1\right )}-\frac {5 \ln \left (a x -1\right )}{64}+\frac {1}{64 \left (a x +1\right )^{2}}-\frac {5}{64 \left (a x +1\right )}+\frac {5 \ln \left (a x +1\right )}{64}}{a^{4}}\) | \(110\) |
risch | \(\frac {\left (2 a^{2} x^{2}-1\right ) \ln \left (a x +1\right )}{8 a^{4} \left (a^{2} x^{2}-1\right )^{2}}+\frac {5 \ln \left (-a x -1\right ) a^{4} x^{4}-5 \ln \left (a x -1\right ) a^{4} x^{4}-10 a^{3} x^{3}-10 \ln \left (-a x -1\right ) a^{2} x^{2}+10 \ln \left (a x -1\right ) a^{2} x^{2}-16 x^{2} \ln \left (-a x +1\right ) a^{2}+6 a x +5 \ln \left (-a x -1\right )-5 \ln \left (a x -1\right )+8 \ln \left (-a x +1\right )}{64 a^{4} \left (a x +1\right ) \left (a x -1\right ) \left (a^{2} x^{2}-1\right )}\) | \(176\) |
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Maxima [A]
time = 0.26, size = 99, normalized size = 1.29 \begin {gather*} -\frac {1}{64} \, 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 )} + \frac {{\left (2 \, a^{2} x^{2} - 1\right )} \operatorname {artanh}\left (a x\right )}{4 \, {\left (a^{8} x^{4} - 2 \, a^{6} x^{2} + a^{4}\right )}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Fricas [A]
time = 0.44, size = 71, normalized size = 0.92 \begin {gather*} -\frac {10 \, a^{3} x^{3} - 6 \, a x - {\left (5 \, a^{4} x^{4} + 6 \, a^{2} x^{2} - 3\right )} \log \left (-\frac {a x + 1}{a x - 1}\right )}{64 \, {\left (a^{8} x^{4} - 2 \, a^{6} x^{2} + a^{4}\right )}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Sympy [B] Leaf count of result is larger than twice the leaf count of optimal. 158 vs.
\(2 (65) = 130\).
time = 0.84, size = 158, normalized size = 2.05 \begin {gather*} \begin {cases} \frac {5 a^{4} x^{4} \operatorname {atanh}{\left (a x \right )}}{32 a^{8} x^{4} - 64 a^{6} x^{2} + 32 a^{4}} - \frac {5 a^{3} x^{3}}{32 a^{8} x^{4} - 64 a^{6} x^{2} + 32 a^{4}} + \frac {6 a^{2} x^{2} \operatorname {atanh}{\left (a x \right )}}{32 a^{8} x^{4} - 64 a^{6} x^{2} + 32 a^{4}} + \frac {3 a x}{32 a^{8} x^{4} - 64 a^{6} x^{2} + 32 a^{4}} - \frac {3 \operatorname {atanh}{\left (a x \right )}}{32 a^{8} x^{4} - 64 a^{6} x^{2} + 32 a^{4}} & \text {for}\: a \neq 0 \\0 & \text {otherwise} \end {cases} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Giac [B] Leaf count of result is larger than twice the leaf count of optimal. 239 vs.
\(2 (66) = 132\).
time = 0.41, size = 239, normalized size = 3.10 \begin {gather*} \frac {1}{256} \, {\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 {\frac {{\left (a x + 1\right )}^{2} a^{5}}{{\left (a x - 1\right )}^{2}} + \frac {4 \, {\left (a x + 1\right )} a^{5}}{a x - 1}}{a^{10}}\right )} \log \left (-\frac {\frac {a {\left (\frac {a x + 1}{a x - 1} + 1\right )}}{\frac {{\left (a x + 1\right )} a}{a x - 1} - a} + 1}{\frac {a {\left (\frac {a x + 1}{a x - 1} + 1\right )}}{\frac {{\left (a x + 1\right )} a}{a x - 1} - a} - 1}\right ) + \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 {\frac {{\left (a x + 1\right )}^{2} a^{5}}{{\left (a x - 1\right )}^{2}} + \frac {8 \, {\left (a x + 1\right )} a^{5}}{a x - 1}}{a^{10}}\right )} a \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Mupad [B]
time = 1.39, size = 83, normalized size = 1.08 \begin {gather*} \frac {5\,\mathrm {atanh}\left (a\,x\right )}{32\,a^4}+\frac {\frac {\ln \left (1-a\,x\right )}{8}-\frac {\ln \left (a\,x+1\right )}{8}+\frac {3\,a\,x}{32}+x^2\,\left (\frac {a^2\,\ln \left (a\,x+1\right )}{4}-\frac {a^2\,\ln \left (1-a\,x\right )}{4}\right )-\frac {5\,a^3\,x^3}{32}}{a^4\,{\left (a^2\,x^2-1\right )}^2} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________