Optimal. Leaf size=25 \[ -\frac{1}{10} \log \left (x^2+1\right )+\frac{1}{5} \log (x+2)+\frac{2}{5} \tan ^{-1}(x) \]
[Out]
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Rubi [A] time = 0.0320511, antiderivative size = 25, normalized size of antiderivative = 1., number of steps used = 5, number of rules used = 5, integrand size = 13, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.385 \[ -\frac{1}{10} \log \left (x^2+1\right )+\frac{1}{5} \log (x+2)+\frac{2}{5} \tan ^{-1}(x) \]
Antiderivative was successfully verified.
[In] Int[1/((2 + x)*(1 + x^2)),x]
[Out]
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Rubi in Sympy [A] time = 4.8145, size = 20, normalized size = 0.8 \[ \frac{\log{\left (x + 2 \right )}}{5} - \frac{\log{\left (x^{2} + 1 \right )}}{10} + \frac{2 \operatorname{atan}{\left (x \right )}}{5} \]
Verification of antiderivative is not currently implemented for this CAS.
[In] rubi_integrate(1/(2+x)/(x**2+1),x)
[Out]
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Mathematica [A] time = 0.00912464, size = 25, normalized size = 1. \[ -\frac{1}{10} \log \left (x^2+1\right )+\frac{1}{5} \log (x+2)+\frac{2}{5} \tan ^{-1}(x) \]
Antiderivative was successfully verified.
[In] Integrate[1/((2 + x)*(1 + x^2)),x]
[Out]
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Maple [A] time = 0.008, size = 20, normalized size = 0.8 \[{\frac{2\,\arctan \left ( x \right ) }{5}}+{\frac{\ln \left ( 2+x \right ) }{5}}-{\frac{\ln \left ({x}^{2}+1 \right ) }{10}} \]
Verification of antiderivative is not currently implemented for this CAS.
[In] int(1/(2+x)/(x^2+1),x)
[Out]
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Maxima [A] time = 0.889416, size = 26, normalized size = 1.04 \[ \frac{2}{5} \, \arctan \left (x\right ) - \frac{1}{10} \, \log \left (x^{2} + 1\right ) + \frac{1}{5} \, \log \left (x + 2\right ) \]
Verification of antiderivative is not currently implemented for this CAS.
[In] integrate(1/((x^2 + 1)*(x + 2)),x, algorithm="maxima")
[Out]
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Fricas [A] time = 0.260785, size = 26, normalized size = 1.04 \[ \frac{2}{5} \, \arctan \left (x\right ) - \frac{1}{10} \, \log \left (x^{2} + 1\right ) + \frac{1}{5} \, \log \left (x + 2\right ) \]
Verification of antiderivative is not currently implemented for this CAS.
[In] integrate(1/((x^2 + 1)*(x + 2)),x, algorithm="fricas")
[Out]
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Sympy [A] time = 0.287354, size = 20, normalized size = 0.8 \[ \frac{\log{\left (x + 2 \right )}}{5} - \frac{\log{\left (x^{2} + 1 \right )}}{10} + \frac{2 \operatorname{atan}{\left (x \right )}}{5} \]
Verification of antiderivative is not currently implemented for this CAS.
[In] integrate(1/(2+x)/(x**2+1),x)
[Out]
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GIAC/XCAS [A] time = 0.261556, size = 27, normalized size = 1.08 \[ \frac{2}{5} \, \arctan \left (x\right ) - \frac{1}{10} \,{\rm ln}\left (x^{2} + 1\right ) + \frac{1}{5} \,{\rm ln}\left ({\left | x + 2 \right |}\right ) \]
Verification of antiderivative is not currently implemented for this CAS.
[In] integrate(1/((x^2 + 1)*(x + 2)),x, algorithm="giac")
[Out]