2.1854   ODE No. 1854

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

$$y^{(n)}(x)-f(y^{(n-1)}(x))=0$$ ✗ Mathematica : cpu = 0.0884637 (sec), leaf count = 0 , could not solve

DSolve[-f[Derivative[-1 + n][y][x]] + Derivative[n][y][x] == 0, y[x], x]

✗ Maple : cpu = 0. (sec), leaf count = 0 , exception

unable to handle ODEs of undefined differential order