Optimal. Leaf size=13 \[ -\frac {1}{4 \left (x^4+x^2\right )^2} \]
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Rubi [A] time = 0.01, antiderivative size = 13, normalized size of antiderivative = 1.00, number of steps used = 1, number of rules used = 1, integrand size = 17, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.059, Rules used = {1588} \begin {gather*} -\frac {1}{4 \left (x^4+x^2\right )^2} \end {gather*}
Antiderivative was successfully verified.
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Rule 1588
Rubi steps
\begin {align*} \int \frac {x+2 x^3}{\left (x^2+x^4\right )^3} \, dx &=-\frac {1}{4 \left (x^2+x^4\right )^2}\\ \end {align*}
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Mathematica [A] time = 0.01, size = 14, normalized size = 1.08 \begin {gather*} -\frac {1}{4 x^4 \left (x^2+1\right )^2} \end {gather*}
Antiderivative was successfully verified.
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IntegrateAlgebraic [F] time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \int \frac {x+2 x^3}{\left (x^2+x^4\right )^3} \, dx \end {gather*}
Verification is not applicable to the result.
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fricas [A] time = 1.45, size = 16, normalized size = 1.23 \begin {gather*} -\frac {1}{4 \, {\left (x^{8} + 2 \, x^{6} + x^{4}\right )}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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giac [A] time = 0.37, size = 11, normalized size = 0.85 \begin {gather*} -\frac {1}{4 \, {\left (x^{4} + x^{2}\right )}^{2}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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maple [B] time = 0.01, size = 30, normalized size = 2.31 \begin {gather*} \frac {1}{2 x^{2}}-\frac {1}{4 x^{4}}-\frac {1}{4 \left (x^{2}+1\right )^{2}}-\frac {1}{2 \left (x^{2}+1\right )} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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maxima [A] time = 0.58, size = 11, normalized size = 0.85 \begin {gather*} -\frac {1}{4 \, {\left (x^{4} + x^{2}\right )}^{2}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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mupad [B] time = 2.24, size = 20, normalized size = 1.54 \begin {gather*} -\frac {1}{4\,x^8+8\,x^6+4\,x^4} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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sympy [A] time = 0.13, size = 17, normalized size = 1.31 \begin {gather*} - \frac {1}{4 x^{8} + 8 x^{6} + 4 x^{4}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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