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 = 0.0073882 (sec), leaf count = 20

$$\left\{\{y(x)\to c_{1}x+\sqrt{1+c_1{}^2}\}\right\}$$ ✓ Maple : cpu = 0.033 (sec), leaf count = 15

$$\{y\left(x\right)=c_{1}x+\sqrt{c_1^2+1}\}$$