10 Oct
2009
10 Oct
'09
4:36 p.m.
Except that -7/4 -3*9/4=-34/4. You want the + sign. Victor Sent from my iPhone On Oct 10, 2009, at 6:18 PM, Gareth McCaughan <gareth.mccaughan@pobox.com
wrote:
On Saturday 10 October 2009 21:14:22 Richard Guy wrote:
Didn't bother to answer, since it seemed obvious that this was a sphere with imaginary radius:
(x + 3/2)^2 + (y + 3/2)^2 + (z + 3/2)^2 = -7/4. R.
Ah yes, very nice that you can do it mod oo as well as mod 2. I feel very stupid for even trying the mod 2 way. D'oh!
-- g
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