RE: How to get Mathematica to solve for "nonbasic variables"?
- To: mathgroup at smc.vnet.net
- Subject: [mg42372] RE: [mg42359] How to get Mathematica to solve for "nonbasic variables"?
- From: "Florian Jaccard" <jaccardf at eicn.ch>
- Date: Thu, 3 Jul 2003 06:10:29 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
In[61]:=
Solve[{5*x == 6*y, z == x/y}, z] /. z :> x/y
Out[61]=
{{x/y -> 6/5}}
Florian Jaccard
-----Message d'origine-----
De : cdj [mailto:a_cjones at hotmail.com]
Envoyé : mer., 2. juillet 2003 12:36
À : mathgroup at smc.vnet.net
Objet : [mg42359] How to get Mathematica to solve for "nonbasic
variables"?
Hi all,
Intuitively, I'd like to get Mathematica to compute things of the following
sort:
In: Solve[5x==6y,x/y]
Out: {x/y -> 5/6}
Of course Mathematica won't do this - and several obvious variations on this
theme don't seem to work either (e.g., introducing a new variable z =
x/y, and attempting to solve the system for z).
So what's the easiest way to solve (systems of) equations for
nonatomic variables of this sort?
Thanks for any suggestions,
cdj