Vectors vs. Tuples and multiple dispatch

New to Julia
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And, if you do want to work with tuples, you can write things recursively instead of writing out cases. These should get unrolled by the compiler to pretty much what you had:

julia> g(xs::Tuple, a) = (g(Base.front(xs), a)..., F(sum(xs), a))
       g(::Tuple{}, a) = (1,);

julia> g((1.2, 3.4, 5.6), 0.78) == f((1.2, 3.4, 5.6), 0.78)
true

julia> @btime g($(Ref(Tuple(x)))[], 0.5)  # same as SVector
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