0
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This question already has an answer here:

If I have, for example,

z[w_] := w^2

and then

z[2]
4

I'd like to get

"at w=2 we get" 4
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marked as duplicate by José Antonio Díaz Navas, b3m2a1, Coolwater, Henrik Schumacher, J. M. will be back soon Apr 11 '18 at 11:19

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