Help with findroot
- To: mathgroup at smc.vnet.net
- Subject: [mg9169] Help with findroot
- From: darrmis at aol.com (Darrmis)
- Date: Thu, 16 Oct 1997 03:38:08 -0400
- Sender: owner-wri-mathgroup at wolfram.com
I'm having a problem using findroot to solve an equation. Perhaps
someone
could shed some light on what's wrong.
FindRoot[Sqrt[x/(1.2 10^ -4)]==-0.1*Tan[Sqrt[x/(1.2*10^
-4)]],{x,0.1,0.1,2}]
Mathematica 3. returns a value of -0.07 for x which is not anywhere
close to correct.
Further, I've tried several different starting values and min/max
limits, but
a negative answer is always returned. Eventually I'de like to compile
a list
of all the roots of the equation up to, say, x=1000, but I can't even
get one
right now.
Thanks,
Karl Kevala