Optimal. Leaf size=39 \[ \frac {4 x}{a}+\frac {x^2}{2}+\frac {4}{a^2 (1-a x)}+\frac {8 \log (1-a x)}{a^2} \]
[Out]
________________________________________________________________________________________
Rubi [A]
time = 0.03, antiderivative size = 39, normalized size of antiderivative = 1.00, number of steps
used = 4, number of rules used = 3, integrand size = 10, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.300, Rules used = {6302, 6261, 78}
\begin {gather*} \frac {4}{a^2 (1-a x)}+\frac {8 \log (1-a x)}{a^2}+\frac {4 x}{a}+\frac {x^2}{2} \end {gather*}
Antiderivative was successfully verified.
[In]
[Out]
Rule 78
Rule 6261
Rule 6302
Rubi steps
\begin {align*} \int e^{4 \coth ^{-1}(a x)} x \, dx &=\int e^{4 \tanh ^{-1}(a x)} x \, dx\\ &=\int \frac {x (1+a x)^2}{(1-a x)^2} \, dx\\ &=\int \left (\frac {4}{a}+x+\frac {4}{a (-1+a x)^2}+\frac {8}{a (-1+a x)}\right ) \, dx\\ &=\frac {4 x}{a}+\frac {x^2}{2}+\frac {4}{a^2 (1-a x)}+\frac {8 \log (1-a x)}{a^2}\\ \end {align*}
________________________________________________________________________________________
Mathematica [A]
time = 0.02, size = 39, normalized size = 1.00 \begin {gather*} \frac {4 x}{a}+\frac {x^2}{2}+\frac {4}{a^2 (1-a x)}+\frac {8 \log (1-a x)}{a^2} \end {gather*}
Antiderivative was successfully verified.
[In]
[Out]
________________________________________________________________________________________
Maple [A]
time = 0.12, size = 39, normalized size = 1.00
method | result | size |
risch | \(\frac {x^{2}}{2}+\frac {4 x}{a}-\frac {4}{a^{2} \left (a x -1\right )}+\frac {8 \ln \left (a x -1\right )}{a^{2}}\) | \(36\) |
default | \(\frac {\frac {1}{2} a \,x^{2}+4 x}{a}-\frac {4}{a^{2} \left (a x -1\right )}+\frac {8 \ln \left (a x -1\right )}{a^{2}}\) | \(39\) |
norman | \(\frac {\frac {7 x^{2}}{2}+\frac {a \,x^{3}}{2}-\frac {8 x}{a}}{a x -1}+\frac {8 \ln \left (a x -1\right )}{a^{2}}\) | \(39\) |
meijerg | \(\frac {\frac {a x \left (-2 a^{2} x^{2}-6 a x +12\right )}{-4 a x +4}+3 \ln \left (-a x +1\right )}{a^{2}}-\frac {2 \left (-\frac {a x \left (-3 a x +6\right )}{3 \left (-a x +1\right )}-2 \ln \left (-a x +1\right )\right )}{a^{2}}+\frac {\frac {a x}{-a x +1}+\ln \left (-a x +1\right )}{a^{2}}\) | \(98\) |
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Maxima [A]
time = 0.26, size = 41, normalized size = 1.05 \begin {gather*} \frac {a x^{2} + 8 \, x}{2 \, a} - \frac {4}{a^{3} x - a^{2}} + \frac {8 \, \log \left (a x - 1\right )}{a^{2}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Fricas [A]
time = 0.35, size = 49, normalized size = 1.26 \begin {gather*} \frac {a^{3} x^{3} + 7 \, a^{2} x^{2} - 8 \, a x + 16 \, {\left (a x - 1\right )} \log \left (a x - 1\right ) - 8}{2 \, {\left (a^{3} x - a^{2}\right )}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Sympy [A]
time = 0.06, size = 31, normalized size = 0.79 \begin {gather*} \frac {x^{2}}{2} - \frac {4}{a^{3} x - a^{2}} + \frac {4 x}{a} + \frac {8 \log {\left (a x - 1 \right )}}{a^{2}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Giac [A]
time = 0.40, size = 64, normalized size = 1.64 \begin {gather*} \frac {\frac {{\left (a x - 1\right )}^{2} {\left (\frac {10}{a x - 1} + 1\right )}}{a} - \frac {16 \, \log \left (\frac {{\left | a x - 1 \right |}}{{\left (a x - 1\right )}^{2} {\left | a \right |}}\right )}{a} - \frac {8}{{\left (a x - 1\right )} a}}{2 \, a} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Mupad [B]
time = 0.04, size = 38, normalized size = 0.97 \begin {gather*} \frac {8\,\ln \left (a\,x-1\right )}{a^2}+\frac {4\,x}{a}+\frac {x^2}{2}+\frac {4}{a\,\left (a-a^2\,x\right )} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________