[julia-users] Adding 1 to an Array{Array{Int64,1},1}

[Chris]

I am confused about the following:

julia> a = [[1,1] for i = 1:5]
5-element Array{Array{Int64,1},1}:
 [1,1]
 [1,1]
 [1,1]
 [1,1]
 [1,1]

julia> a + 1
5-element Array{Any,1}:
 [2,2]
 [2,2]
 [2,2]
 [2,2]
 [2,2]

Specifically, why does the type change from Array{Array{Int64,1},1} to 
Array{Any,1}, and what can I do to keep it as Array{Array{Int64,1},1}?

Thanks,
Chris