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Breifly, I ran across Marks construction on Jim Loy's webpage about trisection and it led here.]]> Feb 11, 2012 9:59:46 AM Feb 11, 2012 9:59:46 AM JO 753 0 http://mathforum.org/kb/thread.jspa?messageID=1088439&tstart=0#1088439
>My method using a guess takes 9 steps (changing step 2 to a full
>circle). A second iteration of my]]> Jul 24, 2002 9:05:20 AM Jul 24, 2002 9:05:20 AM mhs210@hotmail.com 0 http://mathforum.org/kb/thread.jspa?messageID=1088438&tstart=0#1088438
>It turns out that the accuracy of Mark's construction sort
>of falls between]]> Jul 23, 2002 9:25:14 AM Jul 23, 2002 9:25:14 AM mhs210@hotmail.com 1 http://mathforum.org/kb/thread.jspa?messageID=1088437&tstart=0#1088437
> There is an article in the Monthly comparing about 8
> methods]]> Jul 22, 2002 9:17:33 PM Jul 22, 2002 9:17:33 PM rostamian@umbc.edu 2 http://mathforum.org/kb/thread.jspa?messageID=1088436&tstart=0#1088436 approximate trisection. It includes the number of steps each one
needs and the]]> Jul 21, 2002 1:02:56 PM Jul 21, 2002 1:02:56 PM stevebg@adelphia.net 3 http://mathforum.org/kb/thread.jspa?messageID=1088440&tstart=0#1088440
> Steve wrote:
>
> > I just did a 5-minute check]]> Jul 19, 2002 9:54:52 AM Jul 19, 2002 9:54:52 AM stevebg@adelphia.net 0 http://mathforum.org/kb/thread.jspa?messageID=1088435&tstart=0#1088435 ]]> Jul 19, 2002 6:14:08 AM Jul 19, 2002 6:14:08 AM Eric.Bainville@cabri.com 4 http://mathforum.org/kb/thread.jspa?messageID=1088434&tstart=0#1088434
> I just did a 5-minute check with Geometer's Sketchpad. In one
>iteration (original directions]]> Jul 18, 2002 1:44:10 PM Jul 18, 2002 1:44:10 PM mhs210@hotmail.com 6 http://mathforum.org/kb/thread.jspa?messageID=1088433&tstart=0#1088433
[snip]

I just did a 5-minute check with Geometer's Sketchpad. In one
iteration (original directions only) it didn't]]> Jul 17, 2002 11:52:21 PM Jul 17, 2002 11:52:21 PM stevebg@adelphia.net 7 http://mathforum.org/kb/thread.jspa?messageID=1088432&tstart=0#1088432 ]]> Jul 17, 2002 8:35:32 AM Jul 17, 2002 8:35:32 AM Eric.Bainville@cabri.com 0