Array comprehension is inconsistent, given the column-major property of julia

[eldee]

By the way, this topic is essentially a duplicate of

`for i = 1:M, j = 1:N` discrepancy (loop vs comprehension/generator)

I noticed the following about the for i = 1:M, j = 1:N syntax. When using this syntax as part of a normal for-loop, j iterates first: julia> for i = 1:2, j = 1:3 println((i, j)) end (1, 1) (1, 2) (1, 3) (2, 1) (2, 2) (2, 3) But in a comprehension/generator i iterates first: julia> [println((i, j)) for i = 1:2, j = 1:3] (1, 1) (2, 1) (1, 2) (2, 2) (1, 3) (2, 3) I get that for i = 1:M, j = 1:N ... end is shorthand for for i = 1:M for j = 1:N ... end end, but it’s a bit confusing …

In particular, check out okatsn’s summary at the end.