Optimal. Leaf size=29 \[ \frac{2 \tan ^{-1}\left (\frac{c+2 d x}{\sqrt{3} c}\right )}{\sqrt{3} c d} \]
[Out]
________________________________________________________________________________________
Rubi [A] time = 0.0203174, antiderivative size = 29, normalized size of antiderivative = 1., number of steps used = 3, number of rules used = 3, integrand size = 21, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.143, Rules used = {1586, 617, 204} \[ \frac{2 \tan ^{-1}\left (\frac{c+2 d x}{\sqrt{3} c}\right )}{\sqrt{3} c d} \]
Antiderivative was successfully verified.
[In]
[Out]
Rule 1586
Rule 617
Rule 204
Rubi steps
\begin{align*} \int \frac{c-d x}{c^3-d^3 x^3} \, dx &=\int \frac{1}{c^2+c d x+d^2 x^2} \, dx\\ &=-\frac{2 \operatorname{Subst}\left (\int \frac{1}{-3-x^2} \, dx,x,1+\frac{2 d x}{c}\right )}{c d}\\ &=\frac{2 \tan ^{-1}\left (\frac{c+2 d x}{\sqrt{3} c}\right )}{\sqrt{3} c d}\\ \end{align*}
Mathematica [A] time = 0.0074607, size = 29, normalized size = 1. \[ \frac{2 \tan ^{-1}\left (\frac{c+2 d x}{\sqrt{3} c}\right )}{\sqrt{3} c d} \]
Antiderivative was successfully verified.
[In]
[Out]
________________________________________________________________________________________
Maple [A] time = 0.002, size = 34, normalized size = 1.2 \begin{align*}{\frac{2\,\sqrt{3}}{3\,cd}\arctan \left ({\frac{ \left ( 2\,{d}^{2}x+cd \right ) \sqrt{3}}{3\,cd}} \right ) } \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Maxima [A] time = 1.43697, size = 45, normalized size = 1.55 \begin{align*} \frac{2 \, \sqrt{3} \arctan \left (\frac{\sqrt{3}{\left (2 \, d^{2} x + c d\right )}}{3 \, c d}\right )}{3 \, c d} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Fricas [A] time = 1.02726, size = 72, normalized size = 2.48 \begin{align*} \frac{2 \, \sqrt{3} \arctan \left (\frac{\sqrt{3}{\left (2 \, d x + c\right )}}{3 \, c}\right )}{3 \, c d} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Sympy [C] time = 0.213179, size = 53, normalized size = 1.83 \begin{align*} \frac{- \frac{\sqrt{3} i \log{\left (x + \frac{c - \sqrt{3} i c}{2 d} \right )}}{3} + \frac{\sqrt{3} i \log{\left (x + \frac{c + \sqrt{3} i c}{2 d} \right )}}{3}}{c d} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Giac [A] time = 1.05908, size = 35, normalized size = 1.21 \begin{align*} \frac{2 \, \sqrt{3} \arctan \left (\frac{\sqrt{3}{\left (2 \, d x + c\right )}}{3 \, c}\right )}{3 \, c d} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]