[Date Index]
[Thread Index]
[Author Index]
Re: Re: Please help: How to use Mathematica to get Parametric solution for a transcendental equation?
 To: mathgroup at smc.vnet.net
 Subject: [mg69307] Re: Re: Please help: How to use Mathematica to get Parametric solution for a transcendental equation?
 From: "JensPeer Kuska" <kuska at informatik.unileipzig.de>
 Date: Wed, 6 Sep 2006 04:28:23 0400 (EDT)
 Organization: Uni Leipzig
 References: <edjhha$lvs$1@smc.vnet.net>
 Sender: ownerwrimathgroup at wolfram.com
Hi,
and you still don't like the Mathematica syntax ??
You mean
A*(1 + G) + a*((1 + G)^t) == T
because the "[", "]" symbols indicate a function
call and
*not* a algebraic grouping. And you can't find a
algebraic solution
to a transcendental equation. You can try to use a
Taylor series like
Solve[Normal[Series[A*(1 + G) + a*((1 + G)^t), {G,
1, 4}]] == T, G]
and look how wide is the convergence radius.
Regards
Jens
"Leonxf" <leonxf at gmail.com> schrieb im Newsbeitrag
news:edjhha$lvs$1 at smc.vnet.net...
 Sorry. I just copied from Mathematica and pasted
it. I have no idea why it
 becomes something unreadable.

 The function is just one:

 A*(1+G)+a*[(1+G)^t]=T, where A,a,t,T are all
positive real numbers, and t is
 no larger than 1.

 Thanks.

 Leon


 On 9/2/06, JensPeer Kuska
<kuska at informatik.unileipzig.de> wrote:
 >
 > Hi,
 >
 > can you try to use correct Mathematica syntax
??
 > This means is D7(1+G) an algebraic bracket or
a function
 > call and is D7[(1+G)^t] an algebraic bracket
or a function
 > call and what does "====" mean together with
"=" and
 > have you a single equation or several ones ??
 > Regards
 > Jens
 >
 >
 > > Leonxf wrote:
 > > Dear All,
 > >
 > > I am new to the group. Nice to have all of
you here.
 > >
 > > I have an urgent question: I have a
transcendental equation, which is
 > >
 > > A=D7(1 + G) + a=D7[(1 + G)^t] ==== T, where
A,a,T,t are unknown, but
 > A,a,T,=
 > > t
 > > are all positive real numbers, and t is no
greater than 1. (I use ^ sign
 > > here to indicate "to the power of").
 > >
 > > What I hope to get is a parametric
expression for G, say, G==f(A,a,t,T)
 > for
 > > some fucntion f().
 > >
 > > Is there anyway to do that? I noticed
someone asked a similar question
 > > before, and an answer is to get Taylor
Series, if that is the only way,
 > how
 > > to do that?
 > >
 > > Thank you in advance.
 > >
 > > Leon
 > >
 >
 >

Prev by Date:
Re: Batch evaluation of multiple notebooks?
Next by Date:
Re: Simplify UnitStep expressions
Previous by thread:
Re: Re: Please help: How to use Mathematica to get Parametric solution for a transcendental equation?
Next by thread:
Re: Please help: How to use Mathematica to get Parametric solution for a transcendental equation?
 