Optimal. Leaf size=281 \[ \frac {x^2 \log \left (1+\frac {b e^{2 x}}{2 a-\sqrt {4 a^2+b^2}}\right )}{\sqrt {4 a^2+b^2}}-\frac {x^2 \log \left (1+\frac {b e^{2 x}}{2 a+\sqrt {4 a^2+b^2}}\right )}{\sqrt {4 a^2+b^2}}+\frac {x \text {PolyLog}\left (2,-\frac {b e^{2 x}}{2 a-\sqrt {4 a^2+b^2}}\right )}{\sqrt {4 a^2+b^2}}-\frac {x \text {PolyLog}\left (2,-\frac {b e^{2 x}}{2 a+\sqrt {4 a^2+b^2}}\right )}{\sqrt {4 a^2+b^2}}-\frac {\text {PolyLog}\left (3,-\frac {b e^{2 x}}{2 a-\sqrt {4 a^2+b^2}}\right )}{2 \sqrt {4 a^2+b^2}}+\frac {\text {PolyLog}\left (3,-\frac {b e^{2 x}}{2 a+\sqrt {4 a^2+b^2}}\right )}{2 \sqrt {4 a^2+b^2}} \]
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Rubi [A]
time = 0.33, antiderivative size = 281, normalized size of antiderivative = 1.00, number of steps
used = 11, number of rules used = 7, integrand size = 14, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.500, Rules used = {5747, 3403,
2296, 2221, 2611, 2320, 6724} \begin {gather*} \frac {x \text {Li}_2\left (-\frac {b e^{2 x}}{2 a-\sqrt {4 a^2+b^2}}\right )}{\sqrt {4 a^2+b^2}}-\frac {x \text {Li}_2\left (-\frac {b e^{2 x}}{2 a+\sqrt {4 a^2+b^2}}\right )}{\sqrt {4 a^2+b^2}}-\frac {\text {Li}_3\left (-\frac {b e^{2 x}}{2 a-\sqrt {4 a^2+b^2}}\right )}{2 \sqrt {4 a^2+b^2}}+\frac {\text {Li}_3\left (-\frac {b e^{2 x}}{2 a+\sqrt {4 a^2+b^2}}\right )}{2 \sqrt {4 a^2+b^2}}+\frac {x^2 \log \left (\frac {b e^{2 x}}{2 a-\sqrt {4 a^2+b^2}}+1\right )}{\sqrt {4 a^2+b^2}}-\frac {x^2 \log \left (\frac {b e^{2 x}}{\sqrt {4 a^2+b^2}+2 a}+1\right )}{\sqrt {4 a^2+b^2}} \end {gather*}
Antiderivative was successfully verified.
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Rule 2221
Rule 2296
Rule 2320
Rule 2611
Rule 3403
Rule 5747
Rule 6724
Rubi steps
\begin {align*} \int \frac {x^2}{a+b \cosh (x) \sinh (x)} \, dx &=\int \frac {x^2}{a+\frac {1}{2} b \sinh (2 x)} \, dx\\ &=2 \int \frac {e^{2 x} x^2}{-\frac {b}{2}+2 a e^{2 x}+\frac {1}{2} b e^{4 x}} \, dx\\ &=\frac {(2 b) \int \frac {e^{2 x} x^2}{2 a-\sqrt {4 a^2+b^2}+b e^{2 x}} \, dx}{\sqrt {4 a^2+b^2}}-\frac {(2 b) \int \frac {e^{2 x} x^2}{2 a+\sqrt {4 a^2+b^2}+b e^{2 x}} \, dx}{\sqrt {4 a^2+b^2}}\\ &=\frac {x^2 \log \left (1+\frac {b e^{2 x}}{2 a-\sqrt {4 a^2+b^2}}\right )}{\sqrt {4 a^2+b^2}}-\frac {x^2 \log \left (1+\frac {b e^{2 x}}{2 a+\sqrt {4 a^2+b^2}}\right )}{\sqrt {4 a^2+b^2}}-\frac {2 \int x \log \left (1+\frac {b e^{2 x}}{2 a-\sqrt {4 a^2+b^2}}\right ) \, dx}{\sqrt {4 a^2+b^2}}+\frac {2 \int x \log \left (1+\frac {b e^{2 x}}{2 a+\sqrt {4 a^2+b^2}}\right ) \, dx}{\sqrt {4 a^2+b^2}}\\ &=\frac {x^2 \log \left (1+\frac {b e^{2 x}}{2 a-\sqrt {4 a^2+b^2}}\right )}{\sqrt {4 a^2+b^2}}-\frac {x^2 \log \left (1+\frac {b e^{2 x}}{2 a+\sqrt {4 a^2+b^2}}\right )}{\sqrt {4 a^2+b^2}}+\frac {x \text {Li}_2\left (-\frac {b e^{2 x}}{2 a-\sqrt {4 a^2+b^2}}\right )}{\sqrt {4 a^2+b^2}}-\frac {x \text {Li}_2\left (-\frac {b e^{2 x}}{2 a+\sqrt {4 a^2+b^2}}\right )}{\sqrt {4 a^2+b^2}}-\frac {\int \text {Li}_2\left (-\frac {b e^{2 x}}{2 a-\sqrt {4 a^2+b^2}}\right ) \, dx}{\sqrt {4 a^2+b^2}}+\frac {\int \text {Li}_2\left (-\frac {b e^{2 x}}{2 a+\sqrt {4 a^2+b^2}}\right ) \, dx}{\sqrt {4 a^2+b^2}}\\ &=\frac {x^2 \log \left (1+\frac {b e^{2 x}}{2 a-\sqrt {4 a^2+b^2}}\right )}{\sqrt {4 a^2+b^2}}-\frac {x^2 \log \left (1+\frac {b e^{2 x}}{2 a+\sqrt {4 a^2+b^2}}\right )}{\sqrt {4 a^2+b^2}}+\frac {x \text {Li}_2\left (-\frac {b e^{2 x}}{2 a-\sqrt {4 a^2+b^2}}\right )}{\sqrt {4 a^2+b^2}}-\frac {x \text {Li}_2\left (-\frac {b e^{2 x}}{2 a+\sqrt {4 a^2+b^2}}\right )}{\sqrt {4 a^2+b^2}}-\frac {\text {Subst}\left (\int \frac {\text {Li}_2\left (\frac {b x}{-2 a+\sqrt {4 a^2+b^2}}\right )}{x} \, dx,x,e^{2 x}\right )}{2 \sqrt {4 a^2+b^2}}+\frac {\text {Subst}\left (\int \frac {\text {Li}_2\left (-\frac {b x}{2 a+\sqrt {4 a^2+b^2}}\right )}{x} \, dx,x,e^{2 x}\right )}{2 \sqrt {4 a^2+b^2}}\\ &=\frac {x^2 \log \left (1+\frac {b e^{2 x}}{2 a-\sqrt {4 a^2+b^2}}\right )}{\sqrt {4 a^2+b^2}}-\frac {x^2 \log \left (1+\frac {b e^{2 x}}{2 a+\sqrt {4 a^2+b^2}}\right )}{\sqrt {4 a^2+b^2}}+\frac {x \text {Li}_2\left (-\frac {b e^{2 x}}{2 a-\sqrt {4 a^2+b^2}}\right )}{\sqrt {4 a^2+b^2}}-\frac {x \text {Li}_2\left (-\frac {b e^{2 x}}{2 a+\sqrt {4 a^2+b^2}}\right )}{\sqrt {4 a^2+b^2}}-\frac {\text {Li}_3\left (-\frac {b e^{2 x}}{2 a-\sqrt {4 a^2+b^2}}\right )}{2 \sqrt {4 a^2+b^2}}+\frac {\text {Li}_3\left (-\frac {b e^{2 x}}{2 a+\sqrt {4 a^2+b^2}}\right )}{2 \sqrt {4 a^2+b^2}}\\ \end {align*}
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Mathematica [A]
time = 0.18, size = 210, normalized size = 0.75 \begin {gather*} \frac {2 x^2 \log \left (1+\frac {b e^{2 x}}{2 a-\sqrt {4 a^2+b^2}}\right )-2 x^2 \log \left (1+\frac {b e^{2 x}}{2 a+\sqrt {4 a^2+b^2}}\right )+2 x \text {PolyLog}\left (2,\frac {b e^{2 x}}{-2 a+\sqrt {4 a^2+b^2}}\right )-2 x \text {PolyLog}\left (2,-\frac {b e^{2 x}}{2 a+\sqrt {4 a^2+b^2}}\right )-\text {PolyLog}\left (3,\frac {b e^{2 x}}{-2 a+\sqrt {4 a^2+b^2}}\right )+\text {PolyLog}\left (3,-\frac {b e^{2 x}}{2 a+\sqrt {4 a^2+b^2}}\right )}{2 \sqrt {4 a^2+b^2}} \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. \(529\) vs.
\(2(247)=494\).
time = 1.67, size = 530, normalized size = 1.89
method | result | size |
risch | \(-\frac {2 x^{3}}{3 \left (-2 a -\sqrt {4 a^{2}+b^{2}}\right )}+\frac {x^{2} \ln \left (1-\frac {b \,{\mathrm e}^{2 x}}{-2 a -\sqrt {4 a^{2}+b^{2}}}\right )}{-2 a -\sqrt {4 a^{2}+b^{2}}}+\frac {x \polylog \left (2, \frac {b \,{\mathrm e}^{2 x}}{-2 a -\sqrt {4 a^{2}+b^{2}}}\right )}{-2 a -\sqrt {4 a^{2}+b^{2}}}-\frac {\polylog \left (3, \frac {b \,{\mathrm e}^{2 x}}{-2 a -\sqrt {4 a^{2}+b^{2}}}\right )}{2 \left (-2 a -\sqrt {4 a^{2}+b^{2}}\right )}-\frac {4 a \,x^{3}}{3 \sqrt {4 a^{2}+b^{2}}\, \left (-2 a -\sqrt {4 a^{2}+b^{2}}\right )}+\frac {2 a \,x^{2} \ln \left (1-\frac {b \,{\mathrm e}^{2 x}}{-2 a -\sqrt {4 a^{2}+b^{2}}}\right )}{\sqrt {4 a^{2}+b^{2}}\, \left (-2 a -\sqrt {4 a^{2}+b^{2}}\right )}+\frac {2 a x \polylog \left (2, \frac {b \,{\mathrm e}^{2 x}}{-2 a -\sqrt {4 a^{2}+b^{2}}}\right )}{\sqrt {4 a^{2}+b^{2}}\, \left (-2 a -\sqrt {4 a^{2}+b^{2}}\right )}-\frac {a \polylog \left (3, \frac {b \,{\mathrm e}^{2 x}}{-2 a -\sqrt {4 a^{2}+b^{2}}}\right )}{\sqrt {4 a^{2}+b^{2}}\, \left (-2 a -\sqrt {4 a^{2}+b^{2}}\right )}-\frac {2 x^{3}}{3 \sqrt {4 a^{2}+b^{2}}}+\frac {x^{2} \ln \left (1-\frac {b \,{\mathrm e}^{2 x}}{\sqrt {4 a^{2}+b^{2}}-2 a}\right )}{\sqrt {4 a^{2}+b^{2}}}+\frac {x \polylog \left (2, \frac {b \,{\mathrm e}^{2 x}}{\sqrt {4 a^{2}+b^{2}}-2 a}\right )}{\sqrt {4 a^{2}+b^{2}}}-\frac {\polylog \left (3, \frac {b \,{\mathrm e}^{2 x}}{\sqrt {4 a^{2}+b^{2}}-2 a}\right )}{2 \sqrt {4 a^{2}+b^{2}}}\) | \(530\) |
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 [B] Leaf count of result is larger than twice the leaf count of optimal. 1122 vs.
\(2 (245) = 490\).
time = 0.37, size = 1122, normalized size = 3.99 \begin {gather*} -\frac {b x^{2} \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}} \log \left (\frac {{\left (2 \, a \cosh \left (x\right ) + 2 \, a \sinh \left (x\right ) - {\left (b \cosh \left (x\right ) + b \sinh \left (x\right )\right )} \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}}\right )} \sqrt {-\frac {b \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}} + 2 \, a}{b}} + b}{b}\right ) + b x^{2} \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}} \log \left (-\frac {{\left (2 \, a \cosh \left (x\right ) + 2 \, a \sinh \left (x\right ) - {\left (b \cosh \left (x\right ) + b \sinh \left (x\right )\right )} \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}}\right )} \sqrt {-\frac {b \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}} + 2 \, a}{b}} - b}{b}\right ) - b x^{2} \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}} \log \left (\frac {{\left (2 \, a \cosh \left (x\right ) + 2 \, a \sinh \left (x\right ) + {\left (b \cosh \left (x\right ) + b \sinh \left (x\right )\right )} \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}}\right )} \sqrt {\frac {b \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}} - 2 \, a}{b}} + b}{b}\right ) - b x^{2} \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}} \log \left (-\frac {{\left (2 \, a \cosh \left (x\right ) + 2 \, a \sinh \left (x\right ) + {\left (b \cosh \left (x\right ) + b \sinh \left (x\right )\right )} \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}}\right )} \sqrt {\frac {b \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}} - 2 \, a}{b}} - b}{b}\right ) + 2 \, b x \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}} {\rm Li}_2\left (-\frac {{\left (2 \, a \cosh \left (x\right ) + 2 \, a \sinh \left (x\right ) - {\left (b \cosh \left (x\right ) + b \sinh \left (x\right )\right )} \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}}\right )} \sqrt {-\frac {b \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}} + 2 \, a}{b}} + b}{b} + 1\right ) + 2 \, b x \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}} {\rm Li}_2\left (\frac {{\left (2 \, a \cosh \left (x\right ) + 2 \, a \sinh \left (x\right ) - {\left (b \cosh \left (x\right ) + b \sinh \left (x\right )\right )} \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}}\right )} \sqrt {-\frac {b \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}} + 2 \, a}{b}} - b}{b} + 1\right ) - 2 \, b x \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}} {\rm Li}_2\left (-\frac {{\left (2 \, a \cosh \left (x\right ) + 2 \, a \sinh \left (x\right ) + {\left (b \cosh \left (x\right ) + b \sinh \left (x\right )\right )} \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}}\right )} \sqrt {\frac {b \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}} - 2 \, a}{b}} + b}{b} + 1\right ) - 2 \, b x \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}} {\rm Li}_2\left (\frac {{\left (2 \, a \cosh \left (x\right ) + 2 \, a \sinh \left (x\right ) + {\left (b \cosh \left (x\right ) + b \sinh \left (x\right )\right )} \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}}\right )} \sqrt {\frac {b \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}} - 2 \, a}{b}} - b}{b} + 1\right ) - 2 \, b \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}} {\rm polylog}\left (3, \frac {{\left (2 \, a \cosh \left (x\right ) + 2 \, a \sinh \left (x\right ) - {\left (b \cosh \left (x\right ) + b \sinh \left (x\right )\right )} \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}}\right )} \sqrt {-\frac {b \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}} + 2 \, a}{b}}}{b}\right ) - 2 \, b \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}} {\rm polylog}\left (3, -\frac {{\left (2 \, a \cosh \left (x\right ) + 2 \, a \sinh \left (x\right ) - {\left (b \cosh \left (x\right ) + b \sinh \left (x\right )\right )} \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}}\right )} \sqrt {-\frac {b \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}} + 2 \, a}{b}}}{b}\right ) + 2 \, b \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}} {\rm polylog}\left (3, \frac {{\left (2 \, a \cosh \left (x\right ) + 2 \, a \sinh \left (x\right ) + {\left (b \cosh \left (x\right ) + b \sinh \left (x\right )\right )} \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}}\right )} \sqrt {\frac {b \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}} - 2 \, a}{b}}}{b}\right ) + 2 \, b \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}} {\rm polylog}\left (3, -\frac {{\left (2 \, a \cosh \left (x\right ) + 2 \, a \sinh \left (x\right ) + {\left (b \cosh \left (x\right ) + b \sinh \left (x\right )\right )} \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}}\right )} \sqrt {\frac {b \sqrt {\frac {4 \, a^{2} + b^{2}}{b^{2}}} - 2 \, a}{b}}}{b}\right )}{4 \, a^{2} + b^{2}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [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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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 = -0.00 \begin {gather*} \int \frac {x^2}{a+b\,\mathrm {cosh}\left (x\right )\,\mathrm {sinh}\left (x\right )} \,d x \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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