Optimal. Leaf size=13 \[ -\frac {a}{3 x^3}+b \log (x) \]
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Rubi [A]
time = 0.00, antiderivative size = 13, normalized size of antiderivative = 1.00, number of steps
used = 2, number of rules used = 1, integrand size = 11, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.091, Rules used = {14}
\begin {gather*} b \log (x)-\frac {a}{3 x^3} \end {gather*}
Antiderivative was successfully verified.
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Rule 14
Rubi steps
\begin {align*} \int \frac {a+b x^3}{x^4} \, dx &=\int \left (\frac {a}{x^4}+\frac {b}{x}\right ) \, dx\\ &=-\frac {a}{3 x^3}+b \log (x)\\ \end {align*}
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Mathematica [A]
time = 0.00, size = 13, normalized size = 1.00 \begin {gather*} -\frac {a}{3 x^3}+b \log (x) \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.02, size = 12, normalized size = 0.92
method | result | size |
default | \(-\frac {a}{3 x^{3}}+b \ln \left (x \right )\) | \(12\) |
norman | \(-\frac {a}{3 x^{3}}+b \ln \left (x \right )\) | \(12\) |
risch | \(-\frac {a}{3 x^{3}}+b \ln \left (x \right )\) | \(12\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A]
time = 0.31, size = 14, normalized size = 1.08 \begin {gather*} \frac {1}{3} \, b \log \left (x^{3}\right ) - \frac {a}{3 \, x^{3}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 0.34, size = 17, normalized size = 1.31 \begin {gather*} \frac {3 \, b x^{3} \log \left (x\right ) - a}{3 \, x^{3}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A]
time = 0.04, size = 10, normalized size = 0.77 \begin {gather*} - \frac {a}{3 x^{3}} + b \log {\left (x \right )} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A]
time = 2.33, size = 18, normalized size = 1.38 \begin {gather*} b \log \left ({\left | x \right |}\right ) - \frac {b x^{3} + a}{3 \, x^{3}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 0.95, size = 11, normalized size = 0.85 \begin {gather*} b\,\ln \left (x\right )-\frac {a}{3\,x^3} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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