2.266   ODE No. 266

  1. Problem in Latex
  2. Mathematica input
  3. Maple input

\[ \sqrt {x^2+1} (y(x)-x) y'(x)-a \sqrt {\left (y(x)^2+1\right )^3}=0 \] Mathematica : cpu = 3599.95 (sec), leaf count = 0 , timed out

$Aborted

Maple : cpu = 1.882 (sec), leaf count = 55

\[ \left \{ y \left ( x \right ) =\tan \left ( {\it RootOf} \left ( -\arctan \left ( x \right ) +\int ^{-\arctan \left ( x \right ) +{\it \_Z}}\!-{\frac {1}{2\,{a}^{2}+\cos \left ( 2\,{\it \_a} \right ) -1} \left ( \cos \left ( 2\,{\it \_a} \right ) -1+\sqrt {-2\,{a}^{2} \left ( \cos \left ( 2\,{\it \_a} \right ) -1 \right ) } \right ) }{d{\it \_a}}+{\it \_C1} \right ) \right ) \right \} \]