Optimal. Leaf size=10 \[ e^x-\tanh ^{-1}\left (e^x\right ) \]
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Rubi [A]
time = 0.01, antiderivative size = 10, normalized size of antiderivative = 1.00, number of steps
used = 3, number of rules used = 3, integrand size = 15, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.200, Rules used = {2280, 327, 213}
\begin {gather*} e^x-\tanh ^{-1}\left (e^x\right ) \end {gather*}
Antiderivative was successfully verified.
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Rule 213
Rule 327
Rule 2280
Rubi steps
\begin {align*} \int \frac {e^{3 x}}{-1+e^{2 x}} \, dx &=\text {Subst}\left (\int \frac {x^2}{-1+x^2} \, dx,x,e^x\right )\\ &=e^x+\text {Subst}\left (\int \frac {1}{-1+x^2} \, dx,x,e^x\right )\\ &=e^x-\tanh ^{-1}\left (e^x\right )\\ \end {align*}
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Mathematica [A]
time = 0.03, size = 10, normalized size = 1.00 \begin {gather*} e^x-\tanh ^{-1}\left (e^x\right ) \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. \(17\) vs.
\(2(8)=16\).
time = 0.02, size = 18, normalized size = 1.80
method | result | size |
default | \({\mathrm e}^{x}+\frac {\ln \left (-1+{\mathrm e}^{x}\right )}{2}-\frac {\ln \left (1+{\mathrm e}^{x}\right )}{2}\) | \(18\) |
norman | \({\mathrm e}^{x}+\frac {\ln \left (-1+{\mathrm e}^{x}\right )}{2}-\frac {\ln \left (1+{\mathrm e}^{x}\right )}{2}\) | \(18\) |
risch | \({\mathrm e}^{x}+\frac {\ln \left (-1+{\mathrm e}^{x}\right )}{2}-\frac {\ln \left (1+{\mathrm e}^{x}\right )}{2}\) | \(18\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [B] Leaf count of result is larger than twice the leaf count of optimal. 17 vs.
\(2 (8) = 16\).
time = 0.30, size = 17, normalized size = 1.70 \begin {gather*} e^{x} - \frac {1}{2} \, \log \left (e^{x} + 1\right ) + \frac {1}{2} \, \log \left (e^{x} - 1\right ) \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. 17 vs.
\(2 (8) = 16\).
time = 0.36, size = 17, normalized size = 1.70 \begin {gather*} e^{x} - \frac {1}{2} \, \log \left (e^{x} + 1\right ) + \frac {1}{2} \, \log \left (e^{x} - 1\right ) \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [B] Leaf count of result is larger than twice the leaf count of optimal. 19 vs.
\(2 (7) = 14\).
time = 0.04, size = 19, normalized size = 1.90 \begin {gather*} e^{x} + \frac {\log {\left (e^{x} - 1 \right )}}{2} - \frac {\log {\left (e^{x} + 1 \right )}}{2} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [B] Leaf count of result is larger than twice the leaf count of optimal. 18 vs.
\(2 (8) = 16\).
time = 6.14, size = 18, normalized size = 1.80 \begin {gather*} e^{x} - \frac {1}{2} \, \log \left (e^{x} + 1\right ) + \frac {1}{2} \, \log \left ({\left | e^{x} - 1 \right |}\right ) \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 0.10, size = 17, normalized size = 1.70 \begin {gather*} \frac {\ln \left ({\mathrm {e}}^x-1\right )}{2}-\frac {\ln \left ({\mathrm {e}}^x+1\right )}{2}+{\mathrm {e}}^x \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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