Nov. 24, 2008
9:05 p.m.
On Mon, Nov 24, 2008 at 8:58 PM, Arnaud Delobelle <arnodel@googlemail.com> wrote:
If we want Q(i), then surely we also want Z[i]. Gaussian integers have plenty of uses.
Sure, but what are the uses of Z[i] that don't also apply to other rings of integers of quadratic fields? I guess I can see uses in teaching: if you're playing around with complex numbers for the first time then it's possible that all your calculations actually lie in Q[i]. Mark