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	▲	adgjlsfhk1 20 hours ago
		One of the really nice things Julia does is make broadcasting explicit. The way you would write this in Julia is `Z = [1,2,3] W = Z .+ Z' # note the . before the + that makes this a broadcasted` This has 2 big advantages. Firstly, it means that users get errors when the shapes of things aren't what they expected. A DimmensionMismatch error is a lot easier to debug than a silently wrong result. Secondly, it means that julia can use `exp(M)` etc to be a matrix exponential, while the element-wise exponential is `exp.(M)`. This allows a lot of code to naturally work generically over both arrays and scalars (e.g. exp of a complex number will work correctly if written as a 2x2 matrix)