should use broadcast for vector space calculations?

[vpuri3]

RecursiveArrayTools.jl/test/partitions_test.jl

Lines 78 to 82 in 569a07e

	# vector space calculations
	@inferred x+5
	@inferred 5+x
	@inferred x-5
	@inferred 5-x

What's the use case for the vector space interface? using broadcast, rather than overloading +,- would be consistent with AbstractArray interface.

julia> 2 + rand(2)
ERROR: MethodError: no method matching +(::Int64, ::Vector{Float64})
For element-wise addition, use broadcasting with dot syntax: scalar .+ array


julia> 2 .+ rand(2)
2-element Vector{Float64}:
 2.50859350057021
 2.7682555961902384

[ChrisRackauckas]

It's just old pre-v1.0 stuff probably.