Optimal. Leaf size=110 \[ \frac {x^4}{4 a}-\frac {x^3 \log \left (1+\frac {b e^{c+d x}}{a}\right )}{a d}-\frac {3 x^2 \text {Li}_2\left (-\frac {b e^{c+d x}}{a}\right )}{a d^2}+\frac {6 x \text {Li}_3\left (-\frac {b e^{c+d x}}{a}\right )}{a d^3}-\frac {6 \text {Li}_4\left (-\frac {b e^{c+d x}}{a}\right )}{a d^4} \]
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Rubi [A]
time = 0.13, antiderivative size = 110, normalized size of antiderivative = 1.00, number of steps
used = 6, number of rules used = 6, integrand size = 17, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.353, Rules used = {2215, 2221,
2611, 6744, 2320, 6724} \begin {gather*} -\frac {6 \text {PolyLog}\left (4,-\frac {b e^{c+d x}}{a}\right )}{a d^4}+\frac {6 x \text {PolyLog}\left (3,-\frac {b e^{c+d x}}{a}\right )}{a d^3}-\frac {3 x^2 \text {PolyLog}\left (2,-\frac {b e^{c+d x}}{a}\right )}{a d^2}-\frac {x^3 \log \left (\frac {b e^{c+d x}}{a}+1\right )}{a d}+\frac {x^4}{4 a} \end {gather*}
Antiderivative was successfully verified.
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Rule 2215
Rule 2221
Rule 2320
Rule 2611
Rule 6724
Rule 6744
Rubi steps
\begin {align*} \int \frac {x^3}{a+b e^{c+d x}} \, dx &=\frac {x^4}{4 a}-\frac {b \int \frac {e^{c+d x} x^3}{a+b e^{c+d x}} \, dx}{a}\\ &=\frac {x^4}{4 a}-\frac {x^3 \log \left (1+\frac {b e^{c+d x}}{a}\right )}{a d}+\frac {3 \int x^2 \log \left (1+\frac {b e^{c+d x}}{a}\right ) \, dx}{a d}\\ &=\frac {x^4}{4 a}-\frac {x^3 \log \left (1+\frac {b e^{c+d x}}{a}\right )}{a d}-\frac {3 x^2 \text {Li}_2\left (-\frac {b e^{c+d x}}{a}\right )}{a d^2}+\frac {6 \int x \text {Li}_2\left (-\frac {b e^{c+d x}}{a}\right ) \, dx}{a d^2}\\ &=\frac {x^4}{4 a}-\frac {x^3 \log \left (1+\frac {b e^{c+d x}}{a}\right )}{a d}-\frac {3 x^2 \text {Li}_2\left (-\frac {b e^{c+d x}}{a}\right )}{a d^2}+\frac {6 x \text {Li}_3\left (-\frac {b e^{c+d x}}{a}\right )}{a d^3}-\frac {6 \int \text {Li}_3\left (-\frac {b e^{c+d x}}{a}\right ) \, dx}{a d^3}\\ &=\frac {x^4}{4 a}-\frac {x^3 \log \left (1+\frac {b e^{c+d x}}{a}\right )}{a d}-\frac {3 x^2 \text {Li}_2\left (-\frac {b e^{c+d x}}{a}\right )}{a d^2}+\frac {6 x \text {Li}_3\left (-\frac {b e^{c+d x}}{a}\right )}{a d^3}-\frac {6 \text {Subst}\left (\int \frac {\text {Li}_3\left (-\frac {b x}{a}\right )}{x} \, dx,x,e^{c+d x}\right )}{a d^4}\\ &=\frac {x^4}{4 a}-\frac {x^3 \log \left (1+\frac {b e^{c+d x}}{a}\right )}{a d}-\frac {3 x^2 \text {Li}_2\left (-\frac {b e^{c+d x}}{a}\right )}{a d^2}+\frac {6 x \text {Li}_3\left (-\frac {b e^{c+d x}}{a}\right )}{a d^3}-\frac {6 \text {Li}_4\left (-\frac {b e^{c+d x}}{a}\right )}{a d^4}\\ \end {align*}
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Mathematica [A]
time = 0.04, size = 112, normalized size = 1.02 \begin {gather*} -\frac {x^3 \log \left (1+\frac {a e^{-c-d x}}{b}\right )}{a d}+\frac {3 x^2 \text {Li}_2\left (-\frac {a e^{-c-d x}}{b}\right )}{a d^2}+\frac {6 x \text {Li}_3\left (-\frac {a e^{-c-d x}}{b}\right )}{a d^3}+\frac {6 \text {Li}_4\left (-\frac {a e^{-c-d x}}{b}\right )}{a d^4} \end {gather*}
Antiderivative was successfully verified.
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Maple [B] Leaf count of result is larger than twice the leaf count of optimal. \(294\) vs.
\(2(104)=208\).
time = 0.04, size = 295, normalized size = 2.68
method | result | size |
risch | \(\frac {x^{4}}{4 a}+\frac {c^{3} x}{d^{3} a}+\frac {3 c^{4}}{4 d^{4} a}-\frac {x^{3} \ln \left (1+\frac {b \,{\mathrm e}^{d x +c}}{a}\right )}{a d}-\frac {\ln \left (1+\frac {b \,{\mathrm e}^{d x +c}}{a}\right ) c^{3}}{d^{4} a}-\frac {3 x^{2} \polylog \left (2, -\frac {b \,{\mathrm e}^{d x +c}}{a}\right )}{a \,d^{2}}+\frac {6 x \polylog \left (3, -\frac {b \,{\mathrm e}^{d x +c}}{a}\right )}{a \,d^{3}}-\frac {6 \polylog \left (4, -\frac {b \,{\mathrm e}^{d x +c}}{a}\right )}{a \,d^{4}}-\frac {c^{3} \ln \left ({\mathrm e}^{d x +c}\right )}{d^{4} a}+\frac {c^{3} \ln \left (a +b \,{\mathrm e}^{d x +c}\right )}{d^{4} a}\) | \(191\) |
derivativedivides | \(\frac {\frac {\left (d x +c \right )^{4}}{4 a}-\frac {\left (d x +c \right )^{3} \ln \left (1+\frac {b \,{\mathrm e}^{d x +c}}{a}\right )}{a}-\frac {3 \left (d x +c \right )^{2} \polylog \left (2, -\frac {b \,{\mathrm e}^{d x +c}}{a}\right )}{a}+\frac {6 \left (d x +c \right ) \polylog \left (3, -\frac {b \,{\mathrm e}^{d x +c}}{a}\right )}{a}-\frac {6 \polylog \left (4, -\frac {b \,{\mathrm e}^{d x +c}}{a}\right )}{a}-\frac {c^{3} \ln \left ({\mathrm e}^{d x +c}\right )}{a}+\frac {c^{3} \ln \left (a +b \,{\mathrm e}^{d x +c}\right )}{a}-\frac {c \left (d x +c \right )^{3}}{a}+\frac {3 c \left (d x +c \right )^{2} \ln \left (1+\frac {b \,{\mathrm e}^{d x +c}}{a}\right )}{a}+\frac {6 c \left (d x +c \right ) \polylog \left (2, -\frac {b \,{\mathrm e}^{d x +c}}{a}\right )}{a}-\frac {6 c \polylog \left (3, -\frac {b \,{\mathrm e}^{d x +c}}{a}\right )}{a}+\frac {3 c^{2} \left (d x +c \right )^{2}}{2 a}-\frac {3 c^{2} \left (d x +c \right ) \ln \left (1+\frac {b \,{\mathrm e}^{d x +c}}{a}\right )}{a}-\frac {3 c^{2} \polylog \left (2, -\frac {b \,{\mathrm e}^{d x +c}}{a}\right )}{a}}{d^{4}}\) | \(295\) |
default | \(\frac {\frac {\left (d x +c \right )^{4}}{4 a}-\frac {\left (d x +c \right )^{3} \ln \left (1+\frac {b \,{\mathrm e}^{d x +c}}{a}\right )}{a}-\frac {3 \left (d x +c \right )^{2} \polylog \left (2, -\frac {b \,{\mathrm e}^{d x +c}}{a}\right )}{a}+\frac {6 \left (d x +c \right ) \polylog \left (3, -\frac {b \,{\mathrm e}^{d x +c}}{a}\right )}{a}-\frac {6 \polylog \left (4, -\frac {b \,{\mathrm e}^{d x +c}}{a}\right )}{a}-\frac {c^{3} \ln \left ({\mathrm e}^{d x +c}\right )}{a}+\frac {c^{3} \ln \left (a +b \,{\mathrm e}^{d x +c}\right )}{a}-\frac {c \left (d x +c \right )^{3}}{a}+\frac {3 c \left (d x +c \right )^{2} \ln \left (1+\frac {b \,{\mathrm e}^{d x +c}}{a}\right )}{a}+\frac {6 c \left (d x +c \right ) \polylog \left (2, -\frac {b \,{\mathrm e}^{d x +c}}{a}\right )}{a}-\frac {6 c \polylog \left (3, -\frac {b \,{\mathrm e}^{d x +c}}{a}\right )}{a}+\frac {3 c^{2} \left (d x +c \right )^{2}}{2 a}-\frac {3 c^{2} \left (d x +c \right ) \ln \left (1+\frac {b \,{\mathrm e}^{d x +c}}{a}\right )}{a}-\frac {3 c^{2} \polylog \left (2, -\frac {b \,{\mathrm e}^{d x +c}}{a}\right )}{a}}{d^{4}}\) | \(295\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A]
time = 0.32, size = 94, normalized size = 0.85 \begin {gather*} \frac {x^{4}}{4 \, a} - \frac {d^{3} x^{3} \log \left (\frac {b e^{\left (d x + c\right )}}{a} + 1\right ) + 3 \, d^{2} x^{2} {\rm Li}_2\left (-\frac {b e^{\left (d x + c\right )}}{a}\right ) - 6 \, d x {\rm Li}_{3}(-\frac {b e^{\left (d x + c\right )}}{a}) + 6 \, {\rm Li}_{4}(-\frac {b e^{\left (d x + c\right )}}{a})}{a d^{4}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 0.37, size = 120, normalized size = 1.09 \begin {gather*} \frac {d^{4} x^{4} - 12 \, d^{2} x^{2} {\rm Li}_2\left (-\frac {b e^{\left (d x + c\right )} + a}{a} + 1\right ) + 4 \, c^{3} \log \left (b e^{\left (d x + c\right )} + a\right ) + 24 \, d x {\rm polylog}\left (3, -\frac {b e^{\left (d x + c\right )}}{a}\right ) - 4 \, {\left (d^{3} x^{3} + c^{3}\right )} \log \left (\frac {b e^{\left (d x + c\right )} + a}{a}\right ) - 24 \, {\rm polylog}\left (4, -\frac {b e^{\left (d x + c\right )}}{a}\right )}{4 \, a d^{4}} \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 {x^{3}}{a + b e^{c} e^{d x}}\, dx \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 {x^3}{a+b\,{\mathrm {e}}^{c+d\,x}} \,d x \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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