Broadcasting behavior of @. with functions?

General Usage
2

this is correct. note that you can opt-out expressions from inside @. via $ like so

julia> @. ($z(2) - x)
2-element Vector{Float64}:
 0.0
 0.0

z.(2) and z(2) are the same, which I still don’t understand.

this is simply because integers are iterable, unfortunately

julia> collect(i for i in 2)
0-dimensional Array{Int64, 0}:
2

edit:
eesh there is indeed some extra confusing thing going on with dot fusion

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