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Re: Exclude O[] from Series[] for Solve[] in Mathematica

  • To: mathgroup at smc.vnet.net
  • Subject: [mg92821] Re: Exclude O[] from Series[] for Solve[] in Mathematica
  • From: Jean-Marc Gulliet <jeanmarc.gulliet at gmail.com>
  • Date: Tue, 14 Oct 2008 04:57:20 -0400 (EDT)
  • Organization: The Open University, Milton Keynes, UK
  • References: <gcva1a$fb4$1@smc.vnet.net>

vjp2.at at at.BioStrategist.dot.dot.com wrote:

> I expand a function as a Series[] but the O[] part prevents Solve[] from
> working. I try Part[] and it returns something which also confuses
> Solve[]. First[] works, but produces useless results, but this is why I am
> sure this is what I want to do.

 From the online help: "Normal[series] truncates a power series and 
converts it to a normal expression." For instance,


In[1]:= Normal[Series[Exp[x], {x, 0, 5}]]

Out[1]= 1 + x + x^2/2 + x^3/6 + x^4/24 + x^5/120


Regards,
-- Jean-Marc


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