16.58 Problem number 472

\[ \int \frac {1}{x^2 \sqrt {1-x^3}} \, dx \]

Optimal antiderivative \[ -\frac {\sqrt {-x^{3}+1}}{x}-\frac {\sqrt {-x^{3}+1}}{1-x +\sqrt {3}}-\frac {\left (1-x \right ) \EllipticF \left (\frac {1-x -\sqrt {3}}{1-x +\sqrt {3}}, i \sqrt {3}+2 i\right ) \sqrt {2}\, \sqrt {\frac {x^{2}+x +1}{\left (1-x +\sqrt {3}\right )^{2}}}\, 3^{\frac {3}{4}}}{3 \sqrt {-x^{3}+1}\, \sqrt {\frac {1-x}{\left (1-x +\sqrt {3}\right )^{2}}}}+\frac {3^{\frac {1}{4}} \left (1-x \right ) \EllipticE \left (\frac {1-x -\sqrt {3}}{1-x +\sqrt {3}}, i \sqrt {3}+2 i\right ) \left (\frac {\sqrt {6}}{2}-\frac {\sqrt {2}}{2}\right ) \sqrt {\frac {x^{2}+x +1}{\left (1-x +\sqrt {3}\right )^{2}}}}{2 \sqrt {-x^{3}+1}\, \sqrt {\frac {1-x}{\left (1-x +\sqrt {3}\right )^{2}}}} \]

command

integrate(1/x^2/(-x^3+1)^(1/2),x, algorithm="fricas")

Fricas 1.3.8 (sbcl 2.2.11.debian) via sagemath 9.6 output

\[ -\frac {\sqrt {-x^{3} + 1}}{x} \]

Fricas 1.3.7 via sagemath 9.3 output

\[ {\rm integral}\left (-\frac {\sqrt {-x^{3} + 1}}{x^{5} - x^{2}}, x\right ) \]