Path: news.mathworks.com!not-for-mail From: "Venkat raman Thenkarai Narayanan" <thavil@yahoo.com> Newsgroups: comp.soft-sys.matlab Subject: Re: finding complex root from nonlinear equations with complex arguments Date: Wed, 20 May 2009 16:00:21 +0000 (UTC) Organization: The MathWorks, Inc. Lines: 15 Message-ID: <gv19el$jnf$1@fred.mathworks.com> References: <046c08c7-878f-4967-bab1-41273a92bcbd@r2g2000vbp.googlegroups.com> <f5f45956-b72f-4637-abec-c6ad168c231c@u14g2000yqg.googlegroups.com> <gjqsf6$otg$1@fred.mathworks.com> <gk5atm$16i$1@fred.mathworks.com> Reply-To: "Venkat raman Thenkarai Narayanan" <thavil@yahoo.com> NNTP-Posting-Host: webapp-05-blr.mathworks.com Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 8bit X-Trace: fred.mathworks.com 1242835221 20207 172.30.248.35 (20 May 2009 16:00:21 GMT) X-Complaints-To: news@mathworks.com NNTP-Posting-Date: Wed, 20 May 2009 16:00:21 +0000 (UTC) X-Newsreader: MATLAB Central Newsreader 1848667 Xref: news.mathworks.com comp.soft-sys.matlab:541296 Hi, I'd like to know how to pass constants from the command line for the "LMFnlsq" function. For example, you've a function y = x^3 + Á*x^2 + c2*x + c3 and i want to pass the values c1, c2 and c3 from the command line rather than specifying in the file itself. I am finding that the function is not flexible in that regard. Can you tell me what i need to do if i want to play around with different constants input from the command line? Thanks, Venkat "Ramesh Kudenatti" <ramesh@bub.ernet.in> wrote in message <gk5atm$16i$1@fred.mathworks.com>... > Hi > Could anyone tell me how to find the roots of equation involving the transcendental functions like Airy function and its derivative with complex argument? My function is given below. > AiryAiPrime(Z)-c1 Exp[I Pi/6] ==0 where Z = I W (6 I k)^(-2/3), W is unknown, c1 and k are known. > > Requesting.......... > > >