Optimal. Leaf size=44 \[ \frac {f^{a+\frac {b}{x^2}}}{2 b^2 \log ^2(f)}-\frac {f^{a+\frac {b}{x^2}}}{2 b x^2 \log (f)} \]
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Rubi [A]
time = 0.03, antiderivative size = 44, normalized size of antiderivative = 1.00, number of steps
used = 2, number of rules used = 2, integrand size = 13, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.154, Rules used = {2243, 2240}
\begin {gather*} \frac {f^{a+\frac {b}{x^2}}}{2 b^2 \log ^2(f)}-\frac {f^{a+\frac {b}{x^2}}}{2 b x^2 \log (f)} \end {gather*}
Antiderivative was successfully verified.
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Rule 2240
Rule 2243
Rubi steps
\begin {align*} \int \frac {f^{a+\frac {b}{x^2}}}{x^5} \, dx &=-\frac {f^{a+\frac {b}{x^2}}}{2 b x^2 \log (f)}-\frac {\int \frac {f^{a+\frac {b}{x^2}}}{x^3} \, dx}{b \log (f)}\\ &=\frac {f^{a+\frac {b}{x^2}}}{2 b^2 \log ^2(f)}-\frac {f^{a+\frac {b}{x^2}}}{2 b x^2 \log (f)}\\ \end {align*}
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Mathematica [A]
time = 0.01, size = 32, normalized size = 0.73 \begin {gather*} \frac {f^{a+\frac {b}{x^2}} \left (x^2-b \log (f)\right )}{2 b^2 x^2 \log ^2(f)} \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.02, size = 35, normalized size = 0.80
method | result | size |
meijerg | \(-\frac {f^{a} \left (1-\frac {\left (2-\frac {2 b \ln \left (f \right )}{x^{2}}\right ) {\mathrm e}^{\frac {b \ln \left (f \right )}{x^{2}}}}{2}\right )}{2 b^{2} \ln \left (f \right )^{2}}\) | \(35\) |
risch | \(-\frac {\left (b \ln \left (f \right )-x^{2}\right ) f^{\frac {a \,x^{2}+b}{x^{2}}}}{2 \ln \left (f \right )^{2} b^{2} x^{2}}\) | \(36\) |
norman | \(\frac {-\frac {x^{2} {\mathrm e}^{\left (a +\frac {b}{x^{2}}\right ) \ln \left (f \right )}}{2 b \ln \left (f \right )}+\frac {x^{4} {\mathrm e}^{\left (a +\frac {b}{x^{2}}\right ) \ln \left (f \right )}}{2 b^{2} \ln \left (f \right )^{2}}}{x^{4}}\) | \(52\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [C] Result contains higher order function than in optimal. Order 4 vs. order
3.
time = 0.33, size = 22, normalized size = 0.50 \begin {gather*} \frac {f^{a} \Gamma \left (2, -\frac {b \log \left (f\right )}{x^{2}}\right )}{2 \, b^{2} \log \left (f\right )^{2}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 0.34, size = 34, normalized size = 0.77 \begin {gather*} \frac {{\left (x^{2} - b \log \left (f\right )\right )} f^{\frac {a x^{2} + b}{x^{2}}}}{2 \, b^{2} x^{2} \log \left (f\right )^{2}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A]
time = 0.05, size = 29, normalized size = 0.66 \begin {gather*} \frac {f^{a + \frac {b}{x^{2}}} \left (- b \log {\left (f \right )} + x^{2}\right )}{2 b^{2} x^{2} \log {\left (f \right )}^{2}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {could not integrate} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 3.44, size = 36, normalized size = 0.82 \begin {gather*} -\frac {f^{a+\frac {b}{x^2}}\,\left (\frac {1}{2\,b\,\ln \left (f\right )}-\frac {x^2}{2\,b^2\,{\ln \left (f\right )}^2}\right )}{x^2} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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