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MathGroup Archive 2002

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Re: Solve weirdness

  • To: mathgroup at smc.vnet.net
  • Subject: [mg35017] Re: [mg35001] Solve weirdness
  • From: Andrzej Kozlowski <andrzej at platon.c.u-tokyo.ac.jp>
  • Date: Thu, 20 Jun 2002 02:13:11 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

First, you omitted something. Second, I wonder how you got your answer. 
My Mathematica 4.1 for Max OS X (quite correctly) produces:


In[1]:=
Solve[{k*.01^p==10,k*.1^p==1},{k,p}]

 From In[1]:=
Solve::tdep: The equations appear to involve the variables to be solved 
for
in an essentially non-algebraic way.

Out[1]=
Solve[{0.01^p*k == 10, 0.1^p*k == 1}, {k, p}]

The message should be self-explanatory. Solve is not meant to solve 
non-algebraic equations. (This topic has been discussed a countless 
number of times here and if you need more explanation just look in the 
archives or read the online help).

Andrzej Kozlowski
Toyama International University
JAPAN
http://platon.c.u-tokyo.ac.jp/andrzej/

On Wednesday, June 19, 2002, at 06:52  PM, Joshua A. Solomon wrote:

> shouldn't
>
> Solve[{k*.01^p==10,k*.1^==1},{k,p}]
>
> produce
>
> {{k->10.,p->-1.}}
>
> ? it doesn't. it produces
>
> {{}}
>
> . what's up with that?
>
> js
> --
> Joshua A. Solomon
> Department of Optometry and Visual Science
> City University
> London EC1V 0HB
> Voice: (44) 20 7040 0192
> Fax: (44) 20 7040 0182
> J.A.Solomon at city.ac.uk
> http://www.staff.city.ac.uk/~solomon
>
>
>
>



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