Question

As the title says, when creating a multidimensional sequence in scala with tabulate, is the innermost or outermost sequence the 1. dimension?

For example, in a 2-dimensional Vector v, will v(2) give the second element of the 1. or of the 2. dimension?

Answer 1

scala> Array.tabulate(2,3)(_ + 3*_)
res2: Array[Array[Int]] = Array(Array(0, 3, 6), Array(1, 4, 7))

As you can see, the first number refers to the outermost grouping, while the second refers to the second (and so on). In general, all the multidimensional stuff works this way–if you list the dimensions as 3,5,7,2 then a(2)(4)(6)(1) uses the last valid index in each dimension.