It is not that I have problems using this, but particularly for didactic purposes I feel I need a clarification: Whenever I initialize a vector of, lets say, integers, using, for example x = Vector{Int64}(undef,3) There seems to be no other option to be put in the place of undef. I understand wha…

Try @edit Matrix{Float64}(I, 3, 3) and you’ll see that there’s nothing special about I in particular, except that someone has gone ahead and implemented: ## Matrix construction from UniformScaling function Matrix{T}(s::UniformScaling, dims::Dims{2}) where {T} A = zeros(T, dims) v = T(s.λ) …

Meaning and alternatives to "undef" when initializing vectors

New to Julia

lmiq June 4, 2020, 8:42pm 10

That clarifies a lot. Thank you.

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Meaning and alternatives to "undef" when initializing vectors

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