I have some calculations with an arbitrary function. In the output, Mathematica always shows the function arguments. I would like to tidy the notation a bit, by hidding the arguments in the output. How can I do that? Or even better, is there a way to write the function arguments just once in the code? Remembering it's an arbitrary function.
For example, its something like this:
f[x,y] + (f[x,y])^2 = ...
And I prefer like this:
f + f^2 = ...
Thanks!
You mean just for display purposes? May be a simple /. ?
Clear[x, y, f]
expr = f[x, y] + (f[x, y])^2 == 34;
expr /. f[__] -> f
gives
Out[29]= f + f^2 == 34
You can even modify $PrePrint to do this automatically
Clear[x,y,f]
$PrePrint=#/.f[__]->f&;
expr=f[x,y]+(f[x,y])^2==34
Out[6]= f+f^2==34
expr
Out[7]= f+f^2==34
To get it back, do
$PrePrint=.
expr
Out[10]= f[x,y]+f[x,y]^2==34
I am not brave enough to do this myself in actual programming, but it is there to try.