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I need your assistance again.
I have the same problem again but in 2D.
I have created the triangles, and need to area]]> Dec 5, 2012 5:57:09 PM Dec 5, 2012 5:57:09 PM marios_hellas_23@yahoo.gr 0 http://mathforum.org/kb/thread.jspa?messageID=7565501&tstart=0#7565501 Sep 10, 2011 4:33:11 AM Sep 10, 2011 4:33:11 AM b.luong@fogale.findmycountry 1 http://mathforum.org/kb/thread.jspa?messageID=7565318&tstart=0#7565318
One last question,

For every node, actually I need to evaluate the integral 4 times.
Using]]> Sep 9, 2011 3:16:28 PM Sep 9, 2011 3:16:28 PM marios.karaoulis@gmail.com 2 http://mathforum.org/kb/thread.jspa?messageID=7565315&tstart=0#7565315
xyz = unx(:,1:3);
JA = unx(:,4:6);
JB = unx(:,7:9);

T = DelaunayTri(xyz);
T =]]> Sep 9, 2011 2:52:29 PM Sep 9, 2011 2:52:29 PM b.luong@fogale.findmycountry 0 http://mathforum.org/kb/thread.jspa?messageID=7565313&tstart=0#7565313
xyz = unx(:,1:3);
JA = unx(:,4:6);
JB =]]> Sep 9, 2011 2:37:14 PM Sep 9, 2011 2:37:14 PM b.luong@fogale.findmycountry 4 http://mathforum.org/kb/thread.jspa?messageID=7565186&tstart=0#7565186 > Marios Karaoulis]]> Sep 9, 2011 12:04:24 PM Sep 9, 2011 12:04:24 PM marios.karaoulis@gmail.com 5 http://mathforum.org/kb/thread.jspa?messageID=7564810&tstart=0#7564810
Let's say I have the unx matrix where

1st column is the x-coordinate
2nd column is the y-coordinate
3rd column is the]]> Sep 8, 2011 5:52:39 PM Sep 8, 2011 5:52:39 PM marios.karaoulis@gmail.com 0 http://mathforum.org/kb/thread.jspa?messageID=7563406&tstart=0#7563406 Sep 6, 2011 6:25:28 PM Sep 6, 2011 6:25:28 PM b.luong@fogale.findmycountry 6 http://mathforum.org/kb/thread.jspa?messageID=7563403&tstart=0#7563403 > Marios Karaoulis]]> Sep 6, 2011 5:51:26 PM Sep 6, 2011 5:51:26 PM marios.karaoulis@gmail.com 8 http://mathforum.org/kb/thread.jspa?messageID=7563350&tstart=0#7563350 Sep 6, 2011 3:04:27 PM Sep 6, 2011 3:04:27 PM b.luong@fogale.findmycountry 9