Optimal. Leaf size=21 \[ \log (x) (a+b \log (3))-b \text {Li}_2\left (-\frac {e x}{3}\right ) \]
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Rubi [A] time = 0.02, antiderivative size = 21, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, integrand size = 14, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.143, Rules used = {2392, 2391} \[ \log (x) (a+b \log (3))-b \text {PolyLog}\left (2,-\frac {e x}{3}\right ) \]
Antiderivative was successfully verified.
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Rule 2391
Rule 2392
Rubi steps
\begin {align*} \int \frac {a+b \log (3+e x)}{x} \, dx &=(a+b \log (3)) \log (x)+b \int \frac {\log \left (1+\frac {e x}{3}\right )}{x} \, dx\\ &=(a+b \log (3)) \log (x)-b \text {Li}_2\left (-\frac {e x}{3}\right )\\ \end {align*}
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Mathematica [A] time = 0.00, size = 22, normalized size = 1.05 \[ a \log (x)-b \text {Li}_2\left (-\frac {e x}{3}\right )+b \log (3) \log (x) \]
Antiderivative was successfully verified.
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fricas [F] time = 0.42, size = 0, normalized size = 0.00 \[ {\rm integral}\left (\frac {b \log \left (e x + 3\right ) + a}{x}, x\right ) \]
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 \[ \int \frac {b \log \left (e x + 3\right ) + a}{x}\,{d x} \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [B] time = 0.04, size = 46, normalized size = 2.19 \[ -b \ln \left (-\frac {e x}{3}\right ) \ln \left (\frac {e x}{3}+1\right )+b \ln \left (-\frac {e x}{3}\right ) \ln \left (e x +3\right )+a \ln \left (e x \right )-b \dilog \left (\frac {e x}{3}+1\right ) \]
Verification of antiderivative is not currently implemented for this CAS.
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maxima [A] time = 0.94, size = 27, normalized size = 1.29 \[ {\left (\log \left (e x + 3\right ) \log \left (-\frac {1}{3} \, e x\right ) + {\rm Li}_2\left (\frac {1}{3} \, e x + 1\right )\right )} b + a \log \relax (x) \]
Verification of antiderivative is not currently implemented for this CAS.
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mupad [B] time = 0.08, size = 25, normalized size = 1.19 \[ b\,{\mathrm {Li}}_{\mathrm {2}}\left (-\frac {e\,x}{3}\right )+a\,\ln \relax (x)+b\,\ln \left (e\,x+3\right )\,\ln \left (-\frac {e\,x}{3}\right ) \]
Verification of antiderivative is not currently implemented for this CAS.
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sympy [A] time = 4.07, size = 75, normalized size = 3.57 \[ a \log {\relax (x )} + b \left (\begin {cases} \log {\relax (3 )} \log {\relax (x )} - \operatorname {Li}_{2}\left (\frac {e x e^{i \pi }}{3}\right ) & \text {for}\: \left |{x}\right | < 1 \\- \log {\relax (3 )} \log {\left (\frac {1}{x} \right )} - \operatorname {Li}_{2}\left (\frac {e x e^{i \pi }}{3}\right ) & \text {for}\: \frac {1}{\left |{x}\right |} < 1 \\- {G_{2, 2}^{2, 0}\left (\begin {matrix} & 1, 1 \\0, 0 & \end {matrix} \middle | {x} \right )} \log {\relax (3 )} + {G_{2, 2}^{0, 2}\left (\begin {matrix} 1, 1 & \\ & 0, 0 \end {matrix} \middle | {x} \right )} \log {\relax (3 )} - \operatorname {Li}_{2}\left (\frac {e x e^{i \pi }}{3}\right ) & \text {otherwise} \end {cases}\right ) \]
Verification of antiderivative is not currently implemented for this CAS.
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