Optimal. Leaf size=243 \[ \frac {a^{3/2} \left (-56 b^3-8 b^2 \sqrt {b^2+a x^2}\right )+a^{5/2} \left (5 b x^2+15 x^2 \sqrt {b^2+a x^2}\right )}{\frac {384 a^{3/2} b^4 x^3 \sqrt {b^2+a x^2}}{\left (b+\sqrt {b^2+a x^2}\right )^{3/2}}+\frac {192 a^{3/2} b^3 x^3 \left (2 b^2+a x^2\right )}{\left (b+\sqrt {b^2+a x^2}\right )^{3/2}}}+\frac {5 a^{3/2} \text {ArcTan}\left (\frac {\sqrt {a} x}{\sqrt {2} \sqrt {b} \sqrt {b+\sqrt {b^2+a x^2}}}-\frac {\sqrt {b+\sqrt {b^2+a x^2}}}{\sqrt {2} \sqrt {b}}\right )}{32 \sqrt {2} b^{7/2}} \]
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Rubi [F]
time = 0.13, antiderivative size = 0, normalized size of antiderivative = 0.00, number of steps
used = 0, number of rules used = 0, integrand size = 0, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.000, Rules used = {}
\begin {gather*} \int \frac {1}{x^4 \sqrt {b+\sqrt {b^2+a x^2}}} \, dx \end {gather*}
Verification is not applicable to the result.
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Rubi steps
\begin {align*} \int \frac {1}{x^4 \sqrt {b+\sqrt {b^2+a x^2}}} \, dx &=\int \frac {1}{x^4 \sqrt {b+\sqrt {b^2+a x^2}}} \, dx\\ \end {align*}
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Mathematica [A]
time = 0.33, size = 176, normalized size = 0.72 \begin {gather*} \frac {\sqrt {b+\sqrt {b^2+a x^2}} \left (-64 b^4+12 a b^2 x^2+15 a^2 x^4-64 b^3 \sqrt {b^2+a x^2}+20 a b x^2 \sqrt {b^2+a x^2}\right )}{192 b^3 x^3 \left (2 b^2+a x^2+2 b \sqrt {b^2+a x^2}\right )}+\frac {5 a^{3/2} \text {ArcTan}\left (\frac {\sqrt {a} x}{\sqrt {2} \sqrt {b} \sqrt {b+\sqrt {b^2+a x^2}}}\right )}{64 \sqrt {2} b^{7/2}} \end {gather*}
Antiderivative was successfully verified.
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Maple [C] Result contains higher order function than in optimal. Order 5 vs. order
3.
time = 0.04, size = 31, normalized size = 0.13
method | result | size |
meijerg | \(-\frac {\sqrt {2}\, \hypergeom \left (\left [-\frac {3}{2}, \frac {1}{4}, \frac {3}{4}\right ], \left [-\frac {1}{2}, \frac {3}{2}\right ], -\frac {x^{2} a}{b^{2}}\right )}{6 \left (b^{2}\right )^{\frac {1}{4}} x^{3}}\) | \(31\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {Failed to integrate} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 86.35, size = 336, normalized size = 1.38 \begin {gather*} \left [\frac {15 \, \sqrt {\frac {1}{2}} a^{2} x^{5} \sqrt {-\frac {a}{b}} \log \left (-\frac {a^{2} x^{3} + 4 \, a b^{2} x - 4 \, \sqrt {a x^{2} + b^{2}} a b x - 4 \, {\left (2 \, \sqrt {\frac {1}{2}} \sqrt {a x^{2} + b^{2}} b^{2} \sqrt {-\frac {a}{b}} - \sqrt {\frac {1}{2}} {\left (a b x^{2} + 2 \, b^{3}\right )} \sqrt {-\frac {a}{b}}\right )} \sqrt {b + \sqrt {a x^{2} + b^{2}}}}{x^{3}}\right ) + 2 \, {\left (15 \, a^{2} x^{4} + 2 \, a b^{2} x^{2} + 48 \, b^{4} - 2 \, {\left (5 \, a b x^{2} + 24 \, b^{3}\right )} \sqrt {a x^{2} + b^{2}}\right )} \sqrt {b + \sqrt {a x^{2} + b^{2}}}}{384 \, a b^{3} x^{5}}, -\frac {15 \, \sqrt {\frac {1}{2}} a^{2} x^{5} \sqrt {\frac {a}{b}} \arctan \left (\frac {2 \, \sqrt {\frac {1}{2}} \sqrt {b + \sqrt {a x^{2} + b^{2}}} b \sqrt {\frac {a}{b}}}{a x}\right ) - {\left (15 \, a^{2} x^{4} + 2 \, a b^{2} x^{2} + 48 \, b^{4} - 2 \, {\left (5 \, a b x^{2} + 24 \, b^{3}\right )} \sqrt {a x^{2} + b^{2}}\right )} \sqrt {b + \sqrt {a x^{2} + b^{2}}}}{192 \, a b^{3} x^{5}}\right ] \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [C] Result contains complex when optimal does not.
time = 0.78, size = 49, normalized size = 0.20 \begin {gather*} - \frac {\Gamma \left (\frac {1}{4}\right ) \Gamma \left (\frac {3}{4}\right ) {{}_{3}F_{2}\left (\begin {matrix} - \frac {3}{2}, \frac {1}{4}, \frac {3}{4} \\ - \frac {1}{2}, \frac {3}{2} \end {matrix}\middle | {\frac {a x^{2} e^{i \pi }}{b^{2}}} \right )}}{6 \pi \sqrt {b} x^{3}} \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 [F]
time = 0.00, size = -1, normalized size = -0.00 \begin {gather*} \int \frac {1}{x^4\,\sqrt {b+\sqrt {b^2+a\,x^2}}} \,d x \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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