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MATLAB Central > MATLAB Newsreader > Uniform random rotation matrix 

Hi, 
Subject: Uniform random rotation matrix From: John D'Errico Date: 9 Dec, 2010 18:55:14 Message: 2 of 20 
"Martin " <joonyhur@gmail.com> wrote in message <idr87f$ho7$1@fred.mathworks.com>... 
Subject: Uniform random rotation matrix From: Bruno Luong Date: 9 Dec, 2010 18:57:05 Message: 3 of 20 
"Martin " <joonyhur@gmail.com> wrote in message <idr87f$ho7$1@fred.mathworks.com>... 
Subject: Uniform random rotation matrix From: Bruno Luong Date: 9 Dec, 2010 20:50:22 Message: 4 of 20 
"John D'Errico" <woodchips@rochester.rr.com> wrote in message <idr8mi$q71$1@fred.mathworks.com>... 
Subject: Uniform random rotation matrix From: John D'Errico Date: 9 Dec, 2010 21:03:05 Message: 5 of 20 
"Bruno Luong" <b.luong@fogale.findmycountry> wrote in message <idrfee$3iu$1@fred.mathworks.com>... 
Subject: Uniform random rotation matrix From: Bruno Luong Date: 9 Dec, 2010 21:09:05 Message: 6 of 20 
"John D'Errico" <woodchips@rochester.rr.com> wrote in message <idrg69$hrj$1@fred.mathworks.com>... 
Subject: Uniform random rotation matrix From: John D'Errico Date: 9 Dec, 2010 21:13:20 Message: 7 of 20 
"John D'Errico" <woodchips@rochester.rr.com> wrote in message <idrg69$hrj$1@fred.mathworks.com>... 
Subject: Uniform random rotation matrix From: John D'Errico Date: 9 Dec, 2010 21:20:27 Message: 8 of 20 
"Bruno Luong" <b.luong@fogale.findmycountry> wrote in message <idrghh$o4t$1@fred.mathworks.com>... 
Subject: Uniform random rotation matrix From: Roger Stafford Date: 9 Dec, 2010 21:32:07 Message: 9 of 20 
"John D'Errico" <woodchips@rochester.rr.com> wrote in message <idrh6r$7ap$1@fred.mathworks.com>... 
Subject: Uniform random rotation matrix From: Bruno Luong Date: 9 Dec, 2010 21:36:23 Message: 10 of 20 
"John D'Errico" <woodchips@rochester.rr.com> wrote in message 
Subject: Uniform random rotation matrix From: John D'Errico Date: 9 Dec, 2010 21:45:24 Message: 11 of 20 
"Roger Stafford" <ellieandrogerxyzzy@mindspring.com.invalid> wrote in message <idrhsn$jeg$1@fred.mathworks.com>... 
Subject: Uniform random rotation matrix From: John D'Errico Date: 9 Dec, 2010 21:47:05 Message: 12 of 20 
"Bruno Luong" <b.luong@fogale.findmycountry> wrote in message <idri4m$nuc$1@fred.mathworks.com>... 
Subject: Uniform random rotation matrix From: Bruno Luong Date: 9 Dec, 2010 21:53:05 Message: 13 of 20 
"John D'Errico" <woodchips@rochester.rr.com> wrote in message <idriop$5q2$1@fred.mathworks.com>... 
Subject: Uniform random rotation matrix From: Bruno Luong Date: 9 Dec, 2010 21:59:07 Message: 14 of 20 
"Bruno Luong" <b.luong@fogale.findmycountry> wrote in message <idrj41$buh$1@fred.mathworks.com>... 
Subject: Uniform random rotation matrix From: Bruno Luong Date: 9 Dec, 2010 22:10:22 Message: 15 of 20 
Just wonder John, does the QR of your Matlab always output diag(R)>=0 ? 
Subject: Uniform random rotation matrix From: Roger Stafford Date: 9 Dec, 2010 22:12:05 Message: 16 of 20 
"John D'Errico" <woodchips@rochester.rr.com> wrote in message <idriop$5q2$1@fred.mathworks.com>... 
"Bruno Luong" <b.luong@fogale.findmycountry> wrote in message <idrk4e$t80$1@fred.mathworks.com>... 
Subject: Uniform random rotation matrix From: Bruno Luong Date: 1 Apr, 2012 19:44:15 Message: 18 of 20 
"G" wrote in message <jl9ktr$f4c$1@newscl01ah.mathworks.com>... 
"Bruno Luong" <b.luong@fogale.findmycountry> wrote in message <jlab6e$s2m$1@newscl01ah.mathworks.com>... 
Subject: Uniform random rotation matrix From: Bruno Luong Date: 25 Oct, 2012 22:51:08 Message: 20 of 20 
Pick any column of Q then reverse the sign when det(Q)=1. You'll be fine. 
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