Optimal. Leaf size=77 \[ \frac {f^{a+\frac {b}{x}} \left (120 x^5-120 b x^4 \log (f)+60 b^2 x^3 \log ^2(f)-20 b^3 x^2 \log ^3(f)+5 b^4 x \log ^4(f)-b^5 \log ^5(f)\right )}{b^6 x^5 \log ^6(f)} \]
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Rubi [A]
time = 0.02, antiderivative size = 77, normalized size of antiderivative = 1.00, number of steps
used = 1, number of rules used = 1, integrand size = 13, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.077, Rules used = {2249}
\begin {gather*} \frac {f^{a+\frac {b}{x}} \left (-b^5 \log ^5(f)+5 b^4 x \log ^4(f)-20 b^3 x^2 \log ^3(f)+60 b^2 x^3 \log ^2(f)-120 b x^4 \log (f)+120 x^5\right )}{b^6 x^5 \log ^6(f)} \end {gather*}
Antiderivative was successfully verified.
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Rule 2249
Rubi steps
\begin {align*} \int \frac {f^{a+\frac {b}{x}}}{x^7} \, dx &=\frac {f^a \Gamma \left (6,-\frac {b \log (f)}{x}\right )}{b^6 \log ^6(f)}\\ \end {align*}
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Mathematica [C] Result contains higher order function than in optimal. Order 4 vs. order 3 in
optimal.
time = 0.00, size = 21, normalized size = 0.27 \begin {gather*} \frac {f^a \Gamma \left (6,-\frac {b \log (f)}{x}\right )}{b^6 \log ^6(f)} \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.03, size = 80, normalized size = 1.04
method | result | size |
risch | \(-\frac {\left (b^{5} \ln \left (f \right )^{5}-5 b^{4} x \ln \left (f \right )^{4}+20 b^{3} x^{2} \ln \left (f \right )^{3}-60 b^{2} x^{3} \ln \left (f \right )^{2}+120 b \,x^{4} \ln \left (f \right )-120 x^{5}\right ) f^{\frac {a x +b}{x}}}{b^{6} \ln \left (f \right )^{6} x^{5}}\) | \(80\) |
meijerg | \(-\frac {f^{a} \left (120-\frac {\left (-\frac {6 b^{5} \ln \left (f \right )^{5}}{x^{5}}+\frac {30 b^{4} \ln \left (f \right )^{4}}{x^{4}}-\frac {120 b^{3} \ln \left (f \right )^{3}}{x^{3}}+\frac {360 b^{2} \ln \left (f \right )^{2}}{x^{2}}-\frac {720 b \ln \left (f \right )}{x}+720\right ) {\mathrm e}^{\frac {b \ln \left (f \right )}{x}}}{6}\right )}{b^{6} \ln \left (f \right )^{6}}\) | \(83\) |
norman | \(\frac {\frac {120 x^{6} {\mathrm e}^{\left (a +\frac {b}{x}\right ) \ln \left (f \right )}}{b^{6} \ln \left (f \right )^{6}}-\frac {x \,{\mathrm e}^{\left (a +\frac {b}{x}\right ) \ln \left (f \right )}}{\ln \left (f \right ) b}+\frac {5 x^{2} {\mathrm e}^{\left (a +\frac {b}{x}\right ) \ln \left (f \right )}}{b^{2} \ln \left (f \right )^{2}}-\frac {20 x^{3} {\mathrm e}^{\left (a +\frac {b}{x}\right ) \ln \left (f \right )}}{b^{3} \ln \left (f \right )^{3}}+\frac {60 x^{4} {\mathrm e}^{\left (a +\frac {b}{x}\right ) \ln \left (f \right )}}{b^{4} \ln \left (f \right )^{4}}-\frac {120 x^{5} {\mathrm e}^{\left (a +\frac {b}{x}\right ) \ln \left (f \right )}}{b^{5} \ln \left (f \right )^{5}}}{x^{6}}\) | \(142\) |
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 = 0.32, size = 21, normalized size = 0.27 \begin {gather*} \frac {f^{a} \Gamma \left (6, -\frac {b \log \left (f\right )}{x}\right )}{b^{6} \log \left (f\right )^{6}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 0.37, size = 79, normalized size = 1.03 \begin {gather*} -\frac {{\left (b^{5} \log \left (f\right )^{5} - 5 \, b^{4} x \log \left (f\right )^{4} + 20 \, b^{3} x^{2} \log \left (f\right )^{3} - 60 \, b^{2} x^{3} \log \left (f\right )^{2} + 120 \, b x^{4} \log \left (f\right ) - 120 \, x^{5}\right )} f^{\frac {a x + b}{x}}}{b^{6} x^{5} \log \left (f\right )^{6}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A]
time = 0.06, size = 80, normalized size = 1.04 \begin {gather*} \frac {f^{a + \frac {b}{x}} \left (- b^{5} \log {\left (f \right )}^{5} + 5 b^{4} x \log {\left (f \right )}^{4} - 20 b^{3} x^{2} \log {\left (f \right )}^{3} + 60 b^{2} x^{3} \log {\left (f \right )}^{2} - 120 b x^{4} \log {\left (f \right )} + 120 x^{5}\right )}{b^{6} x^{5} \log {\left (f \right )}^{6}} \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 = 3.65, size = 81, normalized size = 1.05 \begin {gather*} -\frac {f^{a+\frac {b}{x}}\,\left (\frac {1}{b\,\ln \left (f\right )}+\frac {20\,x^2}{b^3\,{\ln \left (f\right )}^3}-\frac {60\,x^3}{b^4\,{\ln \left (f\right )}^4}+\frac {120\,x^4}{b^5\,{\ln \left (f\right )}^5}-\frac {120\,x^5}{b^6\,{\ln \left (f\right )}^6}-\frac {5\,x}{b^2\,{\ln \left (f\right )}^2}\right )}{x^5} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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