Optimal. Leaf size=11 \[ \frac{\text{Ei}(2 \log (c x))}{c^2} \]
[Out]
________________________________________________________________________________________
Rubi [A] time = 0.0174104, antiderivative size = 11, normalized size of antiderivative = 1., number of steps used = 2, number of rules used = 2, integrand size = 8, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.25, Rules used = {2309, 2178} \[ \frac{\text{Ei}(2 \log (c x))}{c^2} \]
Antiderivative was successfully verified.
[In]
[Out]
Rule 2309
Rule 2178
Rubi steps
\begin{align*} \int \frac{x}{\log (c x)} \, dx &=\frac{\operatorname{Subst}\left (\int \frac{e^{2 x}}{x} \, dx,x,\log (c x)\right )}{c^2}\\ &=\frac{\text{Ei}(2 \log (c x))}{c^2}\\ \end{align*}
Mathematica [A] time = 0.013095, size = 11, normalized size = 1. \[ \frac{\text{Ei}(2 \log (c x))}{c^2} \]
Antiderivative was successfully verified.
[In]
[Out]
________________________________________________________________________________________
Maple [A] time = 0.043, size = 14, normalized size = 1.3 \begin{align*} -{\frac{{\it Ei} \left ( 1,-2\,\ln \left ( cx \right ) \right ) }{{c}^{2}}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Maxima [A] time = 1.13168, size = 15, normalized size = 1.36 \begin{align*} \frac{{\rm Ei}\left (2 \, \log \left (c x\right )\right )}{c^{2}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Fricas [A] time = 0.836101, size = 36, normalized size = 3.27 \begin{align*} \frac{\logintegral \left (c^{2} x^{2}\right )}{c^{2}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Sympy [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{x}{\log{\left (c x \right )}}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Giac [A] time = 1.10774, size = 15, normalized size = 1.36 \begin{align*} \frac{{\rm Ei}\left (2 \, \log \left (c x\right )\right )}{c^{2}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]