Optimal. Leaf size=156 \[ -\frac {4 \sqrt {-e} \sqrt {d+e x^2}}{15 d x^{3/2}}-\frac {2 \text {ArcTan}\left (\frac {\sqrt {-e} x}{\sqrt {d+e x^2}}\right )}{5 x^{5/2}}-\frac {2 \sqrt {-e} e^{3/4} \left (\sqrt {d}+\sqrt {e} x\right ) \sqrt {\frac {d+e x^2}{\left (\sqrt {d}+\sqrt {e} x\right )^2}} F\left (2 \text {ArcTan}\left (\frac {\sqrt [4]{e} \sqrt {x}}{\sqrt [4]{d}}\right )|\frac {1}{2}\right )}{15 d^{5/4} \sqrt {d+e x^2}} \]
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Rubi [A]
time = 0.06, antiderivative size = 156, normalized size of antiderivative = 1.00, number of steps
used = 4, number of rules used = 4, integrand size = 27, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.148, Rules used = {5259, 331, 335,
226} \begin {gather*} -\frac {2 \sqrt {-e} e^{3/4} \left (\sqrt {d}+\sqrt {e} x\right ) \sqrt {\frac {d+e x^2}{\left (\sqrt {d}+\sqrt {e} x\right )^2}} F\left (2 \text {ArcTan}\left (\frac {\sqrt [4]{e} \sqrt {x}}{\sqrt [4]{d}}\right )|\frac {1}{2}\right )}{15 d^{5/4} \sqrt {d+e x^2}}-\frac {2 \text {ArcTan}\left (\frac {\sqrt {-e} x}{\sqrt {d+e x^2}}\right )}{5 x^{5/2}}-\frac {4 \sqrt {-e} \sqrt {d+e x^2}}{15 d x^{3/2}} \end {gather*}
Antiderivative was successfully verified.
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Rule 226
Rule 331
Rule 335
Rule 5259
Rubi steps
\begin {align*} \int \frac {\tan ^{-1}\left (\frac {\sqrt {-e} x}{\sqrt {d+e x^2}}\right )}{x^{7/2}} \, dx &=-\frac {2 \tan ^{-1}\left (\frac {\sqrt {-e} x}{\sqrt {d+e x^2}}\right )}{5 x^{5/2}}+\frac {1}{5} \left (2 \sqrt {-e}\right ) \int \frac {1}{x^{5/2} \sqrt {d+e x^2}} \, dx\\ &=-\frac {4 \sqrt {-e} \sqrt {d+e x^2}}{15 d x^{3/2}}-\frac {2 \tan ^{-1}\left (\frac {\sqrt {-e} x}{\sqrt {d+e x^2}}\right )}{5 x^{5/2}}+\frac {\left (2 (-e)^{3/2}\right ) \int \frac {1}{\sqrt {x} \sqrt {d+e x^2}} \, dx}{15 d}\\ &=-\frac {4 \sqrt {-e} \sqrt {d+e x^2}}{15 d x^{3/2}}-\frac {2 \tan ^{-1}\left (\frac {\sqrt {-e} x}{\sqrt {d+e x^2}}\right )}{5 x^{5/2}}+\frac {\left (4 (-e)^{3/2}\right ) \text {Subst}\left (\int \frac {1}{\sqrt {d+e x^4}} \, dx,x,\sqrt {x}\right )}{15 d}\\ &=-\frac {4 \sqrt {-e} \sqrt {d+e x^2}}{15 d x^{3/2}}-\frac {2 \tan ^{-1}\left (\frac {\sqrt {-e} x}{\sqrt {d+e x^2}}\right )}{5 x^{5/2}}+\frac {2 (-e)^{3/2} \left (\sqrt {d}+\sqrt {e} x\right ) \sqrt {\frac {d+e x^2}{\left (\sqrt {d}+\sqrt {e} x\right )^2}} F\left (2 \tan ^{-1}\left (\frac {\sqrt [4]{e} \sqrt {x}}{\sqrt [4]{d}}\right )|\frac {1}{2}\right )}{15 d^{5/4} \sqrt [4]{e} \sqrt {d+e x^2}}\\ \end {align*}
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Mathematica [C] Result contains complex when optimal does not.
time = 0.19, size = 150, normalized size = 0.96 \begin {gather*} -\frac {2 \left (2 \sqrt {-e} x \sqrt {d+e x^2}+3 d \text {ArcTan}\left (\frac {\sqrt {-e} x}{\sqrt {d+e x^2}}\right )\right )}{15 d x^{5/2}}+\frac {4 i (-e)^{3/2} \sqrt {1+\frac {d}{e x^2}} x F\left (\left .i \sinh ^{-1}\left (\frac {\sqrt {\frac {i \sqrt {d}}{\sqrt {e}}}}{\sqrt {x}}\right )\right |-1\right )}{15 d \sqrt {\frac {i \sqrt {d}}{\sqrt {e}}} \sqrt {d+e x^2}} \end {gather*}
Antiderivative was successfully verified.
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Maple [F]
time = 0.03, size = 0, normalized size = 0.00 \[\int \frac {\arctan \left (\frac {x \sqrt {-e}}{\sqrt {e \,x^{2}+d}}\right )}{x^{\frac {7}{2}}}\, dx\]
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F(-2)]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {Exception raised: RuntimeError} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [C] Result contains higher order function than in optimal. Order 9 vs. order
4.
time = 0.44, size = 76, normalized size = 0.49 \begin {gather*} \frac {-4 i \, x^{3} e {\rm weierstrassPInverse}\left (-4 \, d e^{\left (-1\right )}, 0, x\right ) - 4 i \, \sqrt {x^{2} e + d} x^{\frac {3}{2}} e^{\frac {1}{2}} - 3 i \, d \sqrt {x} \log \left (\frac {2 \, x^{2} e + 2 \, \sqrt {x^{2} e + d} x e^{\frac {1}{2}} + d}{d}\right )}{15 \, d x^{3}} \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 = 36.69, size = 78, normalized size = 0.50 \begin {gather*} - \frac {2 \operatorname {atan}{\left (\frac {x \sqrt {- e}}{\sqrt {d + e x^{2}}} \right )}}{5 x^{\frac {5}{2}}} + \frac {\sqrt {- e} \Gamma \left (- \frac {3}{4}\right ) {{}_{2}F_{1}\left (\begin {matrix} - \frac {3}{4}, \frac {1}{2} \\ \frac {1}{4} \end {matrix}\middle | {\frac {e x^{2} e^{i \pi }}{d}} \right )}}{5 \sqrt {d} x^{\frac {3}{2}} \Gamma \left (\frac {1}{4}\right )} \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 = -0.01 \begin {gather*} \int \frac {\mathrm {atan}\left (\frac {\sqrt {-e}\,x}{\sqrt {e\,x^2+d}}\right )}{x^{7/2}} \,d x \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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