Is there a matrix/array equivalent of [a,b,c]?

[rafael.guerra]

@JonasWickman

[ [1,2]   [1,2,3] 
  [2,4,5] [7,8,9,10] ]

You need extra brackets:

julia> [ [[1,2]]   [[1,2,3]]
         [[2,4,5]] [[7,8,9,10]] ]
2×2 Matrix{Vector{Int64}}:
 [1, 2]     [1, 2, 3]
 [2, 4, 5]  [7, 8, 9, 10]