From: Sebastian Hungerecker <sepp2k@...>
Date: 2009-09-04T00:55:08+09:00
Subject: Re: Array.transpose on [[]] or [[],[]]

Ralf Mueller wrote:
> I wondered why [[]].transpose = [] and [[],[]].transpose = []
> I expected them to be [[]], because the result would still be an array
> of arrays.

You can think of [] as an array of 0 arrays in this case.
The number of arrays in the array returned by transpose equals the number
of items in each subarray of the original array. So if that number is 0, it
makes sense that the returned array would also have 0 subarrays.

HTH,
Sebastian