Skip to main content
8 events
when toggle format what by license comment
Sep 26 at 21:10 comment added Ben Webster @Andy But as you'll see when I try to explain it, probably this is something you should take seriously but not literally. The point is just that one of the things the triangle equality tells you is that if A and B are close to each other, their distances from C cannot be very different. $gB$ and $g'B$ (in my notation above) are close to each other (distance 1) so their distance from $B$ must be similar, which is what (B) is trying to say.
Sep 26 at 21:07 history edited Ben Webster CC BY-SA 4.0
added 524 characters in body
Sep 26 at 20:51 comment added Ben Webster I mean, there's a decent chance that this isn't working because the statement of (B) is wrong; you only want to apply that relation when $h=x_i$.
Sep 25 at 16:13 comment added Andy How does the triangle inequality (in terms of lengths) imply relation (B)? I know you said it's easy to see but I can't figure it out; how does one show one of two distances is $0$?
Feb 21, 2011 at 8:29 vote accept Thomas Connor
Feb 20, 2011 at 18:15 history edited Ben Webster CC BY-SA 2.5
added 6 characters in body
Feb 20, 2011 at 18:08 vote accept Thomas Connor
Feb 21, 2011 at 8:29
Feb 20, 2011 at 18:05 history answered Ben Webster CC BY-SA 2.5