Optimal. Leaf size=21 \[ b x-\log (x) \left (b x-\tanh ^{-1}(\tanh (a+b x))\right ) \]
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Rubi [A] time = 0.04, antiderivative size = 21, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, integrand size = 11, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.182, Rules used = {2158, 29} \[ b x-\log (x) \left (b x-\tanh ^{-1}(\tanh (a+b x))\right ) \]
Antiderivative was successfully verified.
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Rule 29
Rule 2158
Rubi steps
\begin {align*} \int \frac {\tanh ^{-1}(\tanh (a+b x))}{x} \, dx &=b x-\left (b x-\tanh ^{-1}(\tanh (a+b x))\right ) \int \frac {1}{x} \, dx\\ &=b x-\left (b x-\tanh ^{-1}(\tanh (a+b x))\right ) \log (x)\\ \end {align*}
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Mathematica [A] time = 0.02, size = 19, normalized size = 0.90 \[ \log (x) \left (\tanh ^{-1}(\tanh (a+b x))-b x\right )+b x \]
Antiderivative was successfully verified.
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fricas [A] time = 0.66, size = 8, normalized size = 0.38 \[ b x + a \log \relax (x) \]
Verification of antiderivative is not currently implemented for this CAS.
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giac [A] time = 0.19, size = 9, normalized size = 0.43 \[ b x + a \log \left ({\left | x \right |}\right ) \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [A] time = 0.15, size = 21, normalized size = 1.00 \[ \ln \relax (x ) \arctanh \left (\tanh \left (b x +a \right )\right )-\ln \relax (x ) x b +b x \]
Verification of antiderivative is not currently implemented for this CAS.
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maxima [A] time = 0.33, size = 34, normalized size = 1.62 \[ -b {\left (x + \frac {a}{b}\right )} \log \relax (x) + b {\left (x + \frac {a \log \relax (x)}{b}\right )} + \operatorname {artanh}\left (\tanh \left (b x + a\right )\right ) \log \relax (x) \]
Verification of antiderivative is not currently implemented for this CAS.
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mupad [B] time = 1.10, size = 58, normalized size = 2.76 \[ b\,x-\frac {\ln \left (\frac {1}{{\mathrm {e}}^{2\,a}\,{\mathrm {e}}^{2\,b\,x}+1}\right )\,\ln \relax (x)}{2}+\frac {\ln \left (\frac {{\mathrm {e}}^{2\,a}\,{\mathrm {e}}^{2\,b\,x}}{{\mathrm {e}}^{2\,a}\,{\mathrm {e}}^{2\,b\,x}+1}\right )\,\ln \relax (x)}{2}-b\,x\,\ln \relax (x) \]
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 \[ \int \frac {\operatorname {atanh}{\left (\tanh {\left (a + b x \right )} \right )}}{x}\, dx \]
Verification of antiderivative is not currently implemented for this CAS.
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