Suppressing dependent variables in TraditionalForm

Questions
1

I am new to Mathematica, and I am doing a computation which involves fourth-order derivatives of a composition f(g(x,y,z)). I would like the output from TraditionalForm[…] to include expressions like “…f’…” and not “…f’(g(x,y,z))…” to simplify the final answer. Is there a way to do this? After perusing a number of forums, I have not yet found an answer.

Thanks!

2

may be:

    exp = f'[x] + f''[g[x]] + D[x^2 + y[x]^2, x];
    TraditionalForm[exp /. Derivative[n_][x_][___] :> Derivative[n][x]]

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3

Thank you! This is just the sort of thing I need. Is there some way this can be modified so that y(x) :> y ?