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In relation to my previous post, I wonder if anyone can point me to a good rootfinding algorithm that allows real coefficients with sums of noninteger exponents; eg, (32i)+2*x^(1/2)+3x. 
Subject: Root finding for nonpolynomials From: Roger Stafford Date: 30 Apr, 2008 22:07:03 Message: 2 of 6 
rmutt <bach_1006@yahoo.com> wrote in message 
This is what pursued originally, but it never really worked out well. Now I realize that was partly because of my coding error. The other problem is that 'roots' can return values that are not even roots! For example, consider the function: 3*x + 2*sqrt(x) + (32i) 
Subject: Root finding for nonpolynomials From: roberson@ibd.nrccnrc.gc.ca (Walter Roberson) Date: 1 May, 2008 18:24:37 Message: 4 of 6 
In article <11204850.1209655772018.JavaMail.jakarta@nitrogen.mathforum.org>, 
Subject: Root finding for nonpolynomials From: Roger Stafford Date: 1 May, 2008 18:46:04 Message: 5 of 6 
rmutt <bach_1006@yahoo.com> wrote in message 
Right, thanks for the correction. 
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