Julia Language Arrays Manual construction of a simple array
Example
One can initialize a Julia array by hand, using the square-brackets syntax:
julia> x = [1, 2, 3]
3-element Array{Int64,1}:
1
2
3
The first line after the command shows the size of the array you created. It also shows the type of its elements and its dimensionality (int this case Int64 and 1, repectively). For a two-dimensional array, you can use spaces and semi-colon:
julia> x = [1 2 3; 4 5 6]
2x3 Array{Int64,2}:
1 2 3
4 5 6
To create an uninitialized array, you can use the Array(type, dims...) method:
julia> Array(Int64, 3, 3)
3x3 Array{Int64,2}:
0 0 0
0 0 0
0 0 0
The functions zeros, ones, trues, falses have methods that behave exactly the same way, but produce arrays full of 0.0, 1.0, True or False, respectively.
