Re: How to Eliminate

*To*: mathgroup at smc.vnet.net*Subject*: [mg75062] Re: How to Eliminate*From*: Jean-Marc Gulliet <jeanmarc.gulliet at gmail.com>*Date*: Mon, 16 Apr 2007 04:09:03 -0400 (EDT)*Organization*: The Open University, Milton Keynes, UK*References*: <evsr25$14h$1@smc.vnet.net>

JikaiRF at aol.com wrote: > Dear Members: > When I use "Solve" in order to solve polynomials with high orders, its > solutions are usually reterned in terms of a pair of nested braces, > like {{x -> 0.1}, {x -> 0.5}}. In this situation, I would like to > obtain a pair of braces such as {0.1, 0.5}. In other words, I would > like to know how to eliminate x ->. > How can I obtain my result? > > Sincerely > F. Takata. The solution for x is returned as a transformation rule. You can use the replacement operator /. to apply the rule. See [1] for detailed information. In[1]:= sols = {{x -> 0.1}, {x -> 0.5}} Out[1]= {{x -> 0.1}, {x -> 0.5}} In[2]:= vals = x /. sols Out[2]= {0.1, 0.5} Regards, Jean-Marc [1] _The Mathematica Book_, "1.4.2 Values for Symbols", http://documents.wolfram.com/mathematica/book/section-1.4.2