Re: Re: Help with findroot
- To: mathgroup at smc.vnet.net
- Subject: [mg9228] Re: [mg9182] Re: [mg9169] Help with findroot
- From: Hugh Walker <hwalker at hypercon.com>
- Date: Fri, 24 Oct 1997 01:00:42 -0400
- Sender: owner-wri-mathgroup at wolfram.com
I have an error in my posting on this subject. Plesae note the
correction below.
I suggest you try the following approach. First, rescale your function
so that
x/1.2 10^(-4) -> z Then find the solutions
of Sqrt[z] == -0.01 Tan[Sqrt[z]]. But the solutions of this equation
are the same as the solutions of
***** Sqrt[z] Cos[Sqrt[z]] == -0.01 Sin[Sqrt[z]] *****
This problem has none of the difficulties encountered in the previous
formulation.
Hugh Walker
Gnarly Oaks
Phone: (713) 729-3093