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Is there a quick way in matlab to give me the smallest possible real root of something I am casting a ray with. Newtons, seecannt are too slow. 
Subject: Smallest real positive root From: John D'Errico Date: 19 Apr, 2010 02:08:05 Message: 2 of 7 
"Robert Maxim" <toejama1@gmail.com> wrote in message <hqgd7l$t74$1@fred.mathworks.com>... 
Subject: Smallest real positive root From: Roger Stafford Date: 19 Apr, 2010 02:08:05 Message: 3 of 7 
"Robert Maxim" <toejama1@gmail.com> wrote in message <hqgd7l$t74$1@fred.mathworks.com>... 
I want to cast a ray and find the smallest root where it intersects a surface. 
Subject: Smallest real positive root From: Roger Stafford Date: 19 Apr, 2010 02:36:07 Message: 5 of 7 
"Robert Maxim" <toejama1@gmail.com> wrote in message <hqged6$jt8$1@fred.mathworks.com>... 
Subject: Smallest real positive root From: Walter Roberson Date: 19 Apr, 2010 03:37:32 Message: 6 of 7 
Robert Maxim wrote: 
intersection point for a curve surface from a ray cast quickly and accurately 
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