2.123   ODE No. 123

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

$$x{y}^{\prime }(x)-y(x)-x\sin \left(\frac{y(x)}{x}\right)=0$$ ✓ Mathematica : cpu = 0.10476 (sec), leaf count = 19

$$\left\{\{y(x)\to 2x{\cot }^{-1}\left(\frac{e^{-c_1}}{x}\right)\}\right\}$$ ✓ Maple : cpu = 0.046 (sec), leaf count = 44

$$\{y\left(x\right)=\arctan (2\frac{\mathit{\_}\mathit{C}\mathit{1}x}{{\mathit{\_}\mathit{C}\mathit{1}}^2{x}^2+1},\frac{-{\mathit{\_}\mathit{C}\mathit{1}}^2{x}^2+1}{{\mathit{\_}\mathit{C}\mathit{1}}^2{x}^2+1})x\}$$