Re: How to find Complex roots !!
- To: mathgroup at smc.vnet.net
- Subject: [mg26131] Re: How to find Complex roots !!
- From: "Paul Lutus" <nospam at nosite.com>
- Date: Tue, 28 Nov 2000 01:56:26 -0500 (EST)
- References: <8uqumr$qp7@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
"jncheong" <jncheong at postech.ac.kr> wrote in message news:8uqumr$qp7 at smc.vnet.net... > I'd like to know how to find complex roots in the equation like: > > f(x) = x^n + x^(n-1)+ ...+ x*cos(x)*i+ x*cosh(x) *i + something=0; In[19]:= f := x^n + x^(n-1)+ x Cos[x] I+ x Cosh[x] I + y==0; n = 3;y = 5; In[20]:= FindRoot[f,{x,1}] Out[20]= {x -> 0.277439+1.19433 I} -- Paul Lutus www.arachnoid.com