2.555   ODE No. 555

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

$$x{y}^{\prime }(x)+\sqrt{y^{\prime }(x{)}^2+1}-y(x)=0$$ ✗ Mathematica : cpu = 301.531 (sec), leaf count = 0 , timed out

$Aborted

✓ Maple : cpu = 0.361 (sec), leaf count = 15

$$\{y\left(x\right)=\sqrt{{\mathit{\_}\mathit{C}\mathit{1}}^2+1}+x\mathit{\_}\mathit{C}\mathit{1}\}$$