About FindRoot

*To*: mathgroup at smc.vnet.net*Subject*: [mg92501] About FindRoot*From*: "Ary Adilson Morales Alvarado" <amorales at lme.usp.br>*Date*: Wed, 1 Oct 2008 18:36:10 -0400 (EDT)

Dear friends, When I use the FindRoot the Mathematica shows me this error: FindRoot::"jsing" "Encountered a singular Jacobian at the point ({n22i\_3}\) = \!\({0.1`}\). Try perturbing the initial \ point(s"\) I changed the initial value, but I get the same result. Part of the code is that: \!\(\(For[ i = 1, i < q + 1, FindRoot[\(Ai\_i*Exp[\(4*π* k2i\_i*dimpar\)\/λimpar\_i]\)\/\(Bi\_i*Exp[2*\(4*π*k2i\_i*dimpar\)\/\ λimpar\_i] + Ci\_i*Exp[\(4*π*k2i\_i*dimpar\)\/λimpar\_i] + Di\_i\) - \ Timpar\_i == 0, {n22i\_i, 0.1}]; \(i++\)];\)\) I'm using Mathematica 5.2 Can you give me some help? Thanks in advanced. Ary -- This message was scanned for spam and viruses by BitDefender. For more information please visit http://linux.bitdefender.com/