Optimal. Leaf size=132 \[ -\frac {105 f^a \sqrt {\pi } \text {erfi}\left (\frac {\sqrt {b} \sqrt {\log (f)}}{x}\right )}{32 b^{9/2} \log ^{\frac {9}{2}}(f)}+\frac {105 f^{a+\frac {b}{x^2}}}{16 b^4 x \log ^4(f)}-\frac {35 f^{a+\frac {b}{x^2}}}{8 b^3 x^3 \log ^3(f)}+\frac {7 f^{a+\frac {b}{x^2}}}{4 b^2 x^5 \log ^2(f)}-\frac {f^{a+\frac {b}{x^2}}}{2 b x^7 \log (f)} \]
[Out]
________________________________________________________________________________________
Rubi [A]
time = 0.10, antiderivative size = 132, normalized size of antiderivative = 1.00, number of steps
used = 6, number of rules used = 3, integrand size = 13, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.231, Rules used = {2243, 2242,
2235} \begin {gather*} -\frac {105 \sqrt {\pi } f^a \text {Erfi}\left (\frac {\sqrt {b} \sqrt {\log (f)}}{x}\right )}{32 b^{9/2} \log ^{\frac {9}{2}}(f)}+\frac {105 f^{a+\frac {b}{x^2}}}{16 b^4 x \log ^4(f)}-\frac {35 f^{a+\frac {b}{x^2}}}{8 b^3 x^3 \log ^3(f)}+\frac {7 f^{a+\frac {b}{x^2}}}{4 b^2 x^5 \log ^2(f)}-\frac {f^{a+\frac {b}{x^2}}}{2 b x^7 \log (f)} \end {gather*}
Antiderivative was successfully verified.
[In]
[Out]
Rule 2235
Rule 2242
Rule 2243
Rubi steps
\begin {align*} \int \frac {f^{a+\frac {b}{x^2}}}{x^{10}} \, dx &=-\frac {f^{a+\frac {b}{x^2}}}{2 b x^7 \log (f)}-\frac {7 \int \frac {f^{a+\frac {b}{x^2}}}{x^8} \, dx}{2 b \log (f)}\\ &=\frac {7 f^{a+\frac {b}{x^2}}}{4 b^2 x^5 \log ^2(f)}-\frac {f^{a+\frac {b}{x^2}}}{2 b x^7 \log (f)}+\frac {35 \int \frac {f^{a+\frac {b}{x^2}}}{x^6} \, dx}{4 b^2 \log ^2(f)}\\ &=-\frac {35 f^{a+\frac {b}{x^2}}}{8 b^3 x^3 \log ^3(f)}+\frac {7 f^{a+\frac {b}{x^2}}}{4 b^2 x^5 \log ^2(f)}-\frac {f^{a+\frac {b}{x^2}}}{2 b x^7 \log (f)}-\frac {105 \int \frac {f^{a+\frac {b}{x^2}}}{x^4} \, dx}{8 b^3 \log ^3(f)}\\ &=\frac {105 f^{a+\frac {b}{x^2}}}{16 b^4 x \log ^4(f)}-\frac {35 f^{a+\frac {b}{x^2}}}{8 b^3 x^3 \log ^3(f)}+\frac {7 f^{a+\frac {b}{x^2}}}{4 b^2 x^5 \log ^2(f)}-\frac {f^{a+\frac {b}{x^2}}}{2 b x^7 \log (f)}+\frac {105 \int \frac {f^{a+\frac {b}{x^2}}}{x^2} \, dx}{16 b^4 \log ^4(f)}\\ &=\frac {105 f^{a+\frac {b}{x^2}}}{16 b^4 x \log ^4(f)}-\frac {35 f^{a+\frac {b}{x^2}}}{8 b^3 x^3 \log ^3(f)}+\frac {7 f^{a+\frac {b}{x^2}}}{4 b^2 x^5 \log ^2(f)}-\frac {f^{a+\frac {b}{x^2}}}{2 b x^7 \log (f)}-\frac {105 \text {Subst}\left (\int f^{a+b x^2} \, dx,x,\frac {1}{x}\right )}{16 b^4 \log ^4(f)}\\ &=-\frac {105 f^a \sqrt {\pi } \text {erfi}\left (\frac {\sqrt {b} \sqrt {\log (f)}}{x}\right )}{32 b^{9/2} \log ^{\frac {9}{2}}(f)}+\frac {105 f^{a+\frac {b}{x^2}}}{16 b^4 x \log ^4(f)}-\frac {35 f^{a+\frac {b}{x^2}}}{8 b^3 x^3 \log ^3(f)}+\frac {7 f^{a+\frac {b}{x^2}}}{4 b^2 x^5 \log ^2(f)}-\frac {f^{a+\frac {b}{x^2}}}{2 b x^7 \log (f)}\\ \end {align*}
________________________________________________________________________________________
Mathematica [A]
time = 0.06, size = 100, normalized size = 0.76 \begin {gather*} \frac {f^a \left (-105 \sqrt {\pi } \text {erfi}\left (\frac {\sqrt {b} \sqrt {\log (f)}}{x}\right )+\frac {2 \sqrt {b} f^{\frac {b}{x^2}} \sqrt {\log (f)} \left (105 x^6-70 b x^4 \log (f)+28 b^2 x^2 \log ^2(f)-8 b^3 \log ^3(f)\right )}{x^7}\right )}{32 b^{9/2} \log ^{\frac {9}{2}}(f)} \end {gather*}
Antiderivative was successfully verified.
[In]
[Out]
________________________________________________________________________________________
Maple [A]
time = 0.05, size = 103, normalized size = 0.78
method | result | size |
meijerg | \(\frac {f^{a} \sqrt {-b}\, \left (-\frac {\left (-b \right )^{\frac {9}{2}} \sqrt {\ln \left (f \right )}\, \left (-\frac {72 b^{3} \ln \left (f \right )^{3}}{x^{6}}+\frac {252 b^{2} \ln \left (f \right )^{2}}{x^{4}}-\frac {630 b \ln \left (f \right )}{x^{2}}+945\right ) {\mathrm e}^{\frac {b \ln \left (f \right )}{x^{2}}}}{72 x \,b^{4}}+\frac {105 \left (-b \right )^{\frac {9}{2}} \sqrt {\pi }\, \erfi \left (\frac {\sqrt {b}\, \sqrt {\ln \left (f \right )}}{x}\right )}{16 b^{\frac {9}{2}}}\right )}{2 b^{5} \ln \left (f \right )^{\frac {9}{2}}}\) | \(103\) |
risch | \(-\frac {f^{a} f^{\frac {b}{x^{2}}}}{2 x^{7} b \ln \left (f \right )}+\frac {7 f^{a} f^{\frac {b}{x^{2}}}}{4 \ln \left (f \right )^{2} b^{2} x^{5}}-\frac {35 f^{a} f^{\frac {b}{x^{2}}}}{8 \ln \left (f \right )^{3} b^{3} x^{3}}+\frac {105 f^{a} f^{\frac {b}{x^{2}}}}{16 \ln \left (f \right )^{4} b^{4} x}-\frac {105 f^{a} \sqrt {\pi }\, \erf \left (\frac {\sqrt {-b \ln \left (f \right )}}{x}\right )}{32 \ln \left (f \right )^{4} b^{4} \sqrt {-b \ln \left (f \right )}}\) | \(124\) |
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Maxima [A]
time = 0.32, size = 28, normalized size = 0.21 \begin {gather*} \frac {f^{a} \Gamma \left (\frac {9}{2}, -\frac {b \log \left (f\right )}{x^{2}}\right )}{2 \, x^{9} \left (-\frac {b \log \left (f\right )}{x^{2}}\right )^{\frac {9}{2}}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Fricas [A]
time = 0.36, size = 100, normalized size = 0.76 \begin {gather*} \frac {105 \, \sqrt {\pi } \sqrt {-b \log \left (f\right )} f^{a} x^{7} \operatorname {erf}\left (\frac {\sqrt {-b \log \left (f\right )}}{x}\right ) + 2 \, {\left (105 \, b x^{6} \log \left (f\right ) - 70 \, b^{2} x^{4} \log \left (f\right )^{2} + 28 \, b^{3} x^{2} \log \left (f\right )^{3} - 8 \, b^{4} \log \left (f\right )^{4}\right )} f^{\frac {a x^{2} + b}{x^{2}}}}{32 \, b^{5} x^{7} \log \left (f\right )^{5}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Sympy [F(-1)] Timed out
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {Timed out} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
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.
[In]
[Out]
________________________________________________________________________________________
Mupad [B]
time = 3.69, size = 121, normalized size = 0.92 \begin {gather*} -\frac {\frac {f^a\,\left (105\,\sqrt {\pi }\,\mathrm {erfi}\left (\frac {b\,\ln \left (f\right )}{x\,\sqrt {b\,\ln \left (f\right )}}\right )-\frac {210\,f^{\frac {b}{x^2}}\,\sqrt {b\,\ln \left (f\right )}}{x}\right )}{32\,\sqrt {b\,\ln \left (f\right )}}-\frac {7\,b^2\,f^a\,f^{\frac {b}{x^2}}\,{\ln \left (f\right )}^2}{4\,x^5}+\frac {b^3\,f^a\,f^{\frac {b}{x^2}}\,{\ln \left (f\right )}^3}{2\,x^7}+\frac {35\,b\,f^a\,f^{\frac {b}{x^2}}\,\ln \left (f\right )}{8\,x^3}}{b^4\,{\ln \left (f\right )}^4} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________