Copy portions of array

Say I have an array with 5000 elements in it
arr(4999)

I want to copy a portion of that array (say elements 100 to 400) to a new
array:
arr2(300)

Is there a more efficient and quicker way to perform this action vs. a for
loop???

For i = 100 to 400
arr2(i-100) = arr(i)
Next i

I'm dealing with some very large data sizes here (this was just an arbitrary
example).

Evan


.

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