Optimal. Leaf size=107 \[ \frac {4 \left (b+a x^3\right ) \left (b x+a x^4\right )^{3/4}}{21 b x^6}+\frac {2 \text {ArcTan}\left (\frac {\sqrt [4]{a} \left (b x+a x^4\right )^{3/4}}{b+a x^3}\right )}{3 \sqrt [4]{a}}+\frac {2 \tanh ^{-1}\left (\frac {\sqrt [4]{a} \left (b x+a x^4\right )^{3/4}}{b+a x^3}\right )}{3 \sqrt [4]{a}} \]
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Rubi [A]
time = 0.20, antiderivative size = 167, normalized size of antiderivative = 1.56, number of steps
used = 12, number of rules used = 10, integrand size = 30, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.333, Rules used = {2077, 2036,
335, 281, 246, 218, 212, 209, 2041, 2039} \begin {gather*} \frac {2 \sqrt [4]{x} \sqrt [4]{a x^3+b} \text {ArcTan}\left (\frac {\sqrt [4]{a} x^{3/4}}{\sqrt [4]{a x^3+b}}\right )}{3 \sqrt [4]{a} \sqrt [4]{a x^4+b x}}+\frac {4 \left (a x^4+b x\right )^{3/4}}{21 x^6}+\frac {4 a \left (a x^4+b x\right )^{3/4}}{21 b x^3}+\frac {2 \sqrt [4]{x} \sqrt [4]{a x^3+b} \tanh ^{-1}\left (\frac {\sqrt [4]{a} x^{3/4}}{\sqrt [4]{a x^3+b}}\right )}{3 \sqrt [4]{a} \sqrt [4]{a x^4+b x}} \end {gather*}
Antiderivative was successfully verified.
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Rule 209
Rule 212
Rule 218
Rule 246
Rule 281
Rule 335
Rule 2036
Rule 2039
Rule 2041
Rule 2077
Rubi steps
\begin {align*} \int \frac {-b-a x^3+x^6}{x^6 \sqrt [4]{b x+a x^4}} \, dx &=\int \left (\frac {1}{\sqrt [4]{b x+a x^4}}-\frac {b}{x^6 \sqrt [4]{b x+a x^4}}-\frac {a}{x^3 \sqrt [4]{b x+a x^4}}\right ) \, dx\\ &=-\left (a \int \frac {1}{x^3 \sqrt [4]{b x+a x^4}} \, dx\right )-b \int \frac {1}{x^6 \sqrt [4]{b x+a x^4}} \, dx+\int \frac {1}{\sqrt [4]{b x+a x^4}} \, dx\\ &=\frac {4 \left (b x+a x^4\right )^{3/4}}{21 x^6}+\frac {4 a \left (b x+a x^4\right )^{3/4}}{9 b x^3}+\frac {1}{7} (4 a) \int \frac {1}{x^3 \sqrt [4]{b x+a x^4}} \, dx+\frac {\left (\sqrt [4]{x} \sqrt [4]{b+a x^3}\right ) \int \frac {1}{\sqrt [4]{x} \sqrt [4]{b+a x^3}} \, dx}{\sqrt [4]{b x+a x^4}}\\ &=\frac {4 \left (b x+a x^4\right )^{3/4}}{21 x^6}+\frac {4 a \left (b x+a x^4\right )^{3/4}}{21 b x^3}+\frac {\left (4 \sqrt [4]{x} \sqrt [4]{b+a x^3}\right ) \text {Subst}\left (\int \frac {x^2}{\sqrt [4]{b+a x^{12}}} \, dx,x,\sqrt [4]{x}\right )}{\sqrt [4]{b x+a x^4}}\\ &=\frac {4 \left (b x+a x^4\right )^{3/4}}{21 x^6}+\frac {4 a \left (b x+a x^4\right )^{3/4}}{21 b x^3}+\frac {\left (4 \sqrt [4]{x} \sqrt [4]{b+a x^3}\right ) \text {Subst}\left (\int \frac {1}{\sqrt [4]{b+a x^4}} \, dx,x,x^{3/4}\right )}{3 \sqrt [4]{b x+a x^4}}\\ &=\frac {4 \left (b x+a x^4\right )^{3/4}}{21 x^6}+\frac {4 a \left (b x+a x^4\right )^{3/4}}{21 b x^3}+\frac {\left (4 \sqrt [4]{x} \sqrt [4]{b+a x^3}\right ) \text {Subst}\left (\int \frac {1}{1-a x^4} \, dx,x,\frac {x^{3/4}}{\sqrt [4]{b+a x^3}}\right )}{3 \sqrt [4]{b x+a x^4}}\\ &=\frac {4 \left (b x+a x^4\right )^{3/4}}{21 x^6}+\frac {4 a \left (b x+a x^4\right )^{3/4}}{21 b x^3}+\frac {\left (2 \sqrt [4]{x} \sqrt [4]{b+a x^3}\right ) \text {Subst}\left (\int \frac {1}{1-\sqrt {a} x^2} \, dx,x,\frac {x^{3/4}}{\sqrt [4]{b+a x^3}}\right )}{3 \sqrt [4]{b x+a x^4}}+\frac {\left (2 \sqrt [4]{x} \sqrt [4]{b+a x^3}\right ) \text {Subst}\left (\int \frac {1}{1+\sqrt {a} x^2} \, dx,x,\frac {x^{3/4}}{\sqrt [4]{b+a x^3}}\right )}{3 \sqrt [4]{b x+a x^4}}\\ &=\frac {4 \left (b x+a x^4\right )^{3/4}}{21 x^6}+\frac {4 a \left (b x+a x^4\right )^{3/4}}{21 b x^3}+\frac {2 \sqrt [4]{x} \sqrt [4]{b+a x^3} \tan ^{-1}\left (\frac {\sqrt [4]{a} x^{3/4}}{\sqrt [4]{b+a x^3}}\right )}{3 \sqrt [4]{a} \sqrt [4]{b x+a x^4}}+\frac {2 \sqrt [4]{x} \sqrt [4]{b+a x^3} \tanh ^{-1}\left (\frac {\sqrt [4]{a} x^{3/4}}{\sqrt [4]{b+a x^3}}\right )}{3 \sqrt [4]{a} \sqrt [4]{b x+a x^4}}\\ \end {align*}
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Mathematica [C] Result contains higher order function than in optimal. Order 5 vs. order 3 in
optimal.
time = 10.05, size = 72, normalized size = 0.67 \begin {gather*} \frac {4 \left (\left (b+a x^3\right )^2+7 b x^6 \sqrt [4]{1+\frac {a x^3}{b}} \, _2F_1\left (\frac {1}{4},\frac {1}{4};\frac {5}{4};-\frac {a x^3}{b}\right )\right )}{21 b x^5 \sqrt [4]{x \left (b+a x^3\right )}} \end {gather*}
Antiderivative was successfully verified.
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Maple [F]
time = 0.01, size = 0, normalized size = 0.00 \[\int \frac {x^{6}-a \,x^{3}-b}{x^{6} \left (a \,x^{4}+b x \right )^{\frac {1}{4}}}\, dx\]
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 [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.
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Sympy [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \int \frac {- a x^{3} - b + x^{6}}{x^{6} \sqrt [4]{x \left (a x^{3} + b\right )}}\, dx \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [B] Leaf count of result is larger than twice the leaf count of optimal. 191 vs.
\(2 (87) = 174\).
time = 0.43, size = 191, normalized size = 1.79 \begin {gather*} -\frac {\sqrt {2} \arctan \left (\frac {\sqrt {2} {\left (\sqrt {2} \left (-a\right )^{\frac {1}{4}} + 2 \, {\left (a + \frac {b}{x^{3}}\right )}^{\frac {1}{4}}\right )}}{2 \, \left (-a\right )^{\frac {1}{4}}}\right )}{3 \, \left (-a\right )^{\frac {1}{4}}} - \frac {\sqrt {2} \arctan \left (-\frac {\sqrt {2} {\left (\sqrt {2} \left (-a\right )^{\frac {1}{4}} - 2 \, {\left (a + \frac {b}{x^{3}}\right )}^{\frac {1}{4}}\right )}}{2 \, \left (-a\right )^{\frac {1}{4}}}\right )}{3 \, \left (-a\right )^{\frac {1}{4}}} + \frac {\sqrt {2} \log \left (\sqrt {2} \left (-a\right )^{\frac {1}{4}} {\left (a + \frac {b}{x^{3}}\right )}^{\frac {1}{4}} + \sqrt {-a} + \sqrt {a + \frac {b}{x^{3}}}\right )}{6 \, \left (-a\right )^{\frac {1}{4}}} + \frac {\sqrt {2} \left (-a\right )^{\frac {3}{4}} \log \left (-\sqrt {2} \left (-a\right )^{\frac {1}{4}} {\left (a + \frac {b}{x^{3}}\right )}^{\frac {1}{4}} + \sqrt {-a} + \sqrt {a + \frac {b}{x^{3}}}\right )}{6 \, a} + \frac {4 \, {\left (a + \frac {b}{x^{3}}\right )}^{\frac {7}{4}}}{21 \, b} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 1.31, size = 77, normalized size = 0.72 \begin {gather*} \frac {4\,{\left (a\,x^4+b\,x\right )}^{3/4}}{21\,x^6}+\frac {4\,x\,{\left (\frac {a\,x^3}{b}+1\right )}^{1/4}\,{{}}_2{\mathrm {F}}_1\left (\frac {1}{4},\frac {1}{4};\ \frac {5}{4};\ -\frac {a\,x^3}{b}\right )}{3\,{\left (a\,x^4+b\,x\right )}^{1/4}}+\frac {4\,a\,{\left (a\,x^4+b\,x\right )}^{3/4}}{21\,b\,x^3} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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