Re: Eliminating parameters

*To*: mathgroup at smc.vnet.net*Subject*: [mg61602] Re: Eliminating parameters*From*: Bill Rowe <readnewsciv at earthlink.net>*Date*: Sun, 23 Oct 2005 05:46:11 -0400 (EDT)*Sender*: owner-wri-mathgroup at wolfram.com

On 10/22/05 at 12:36 AM, pacoga at ctv.es (Francisco Javier) wrote: >Suppose that {X, Y, Z} = {f[u,v], g[u,v], h[u, v]} and that we want >to eliminate u, v and get an equation in X, Y, Z. >Then we can try >Eliminate[{X-f[u,v], Y-g[u,v], Z-h[u,v]},{u, v}] >This time f, g, w contain square roots and I think that this is the >reason by which Eliminate seems don't work (after 15 minutes I >aborted the calculation) >Is there any enhancement or substitute for Eliminate in this case? Quite possibly, there is a way to solve your problem in reasonable time. But you have not provided enough detail for anyone to propose a solution. You need provided the code that defines f,g and h. And if you are literally doing In[1]:={X, Y, Z} = {f[u, v], g[u, v], h[u, v]} Out[1]={f[u, v], g[u, v], h[u, v]} In[2]:={X - f[u, v], Y - g[u, v], Z - h[u, v]} Out[2]={0, 0, 0} It should be obvious why Mathematica cannot solve the problem -- To reply via email subtract one hundred and four