How to create and use a multi-dimensional array in Scala?

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Like so:

scala> Array.ofDim[Double](2, 2, 2)
res2: Array[Array[Array[Double]]] = Array(Array(Array(0.0, 0.0), Array(0.0, 0.0)), Array(Array(0.0, 0.0), Array(0.0, 0.0)))

scala> {val (x, y) = (2, 3); Array.tabulate(x, y)( (x, y) => x + y )}
res3: Array[Array[Int]] = Array(Array(0, 1, 2), Array(1, 2, 3))

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