Re: using answer form reduce

*To*: mathgroup at smc.vnet.net*Subject*: [mg68635] Re: [mg68616] using answer form reduce*From*: Bob Hanlon <hanlonr at cox.net>*Date*: Mon, 14 Aug 2006 06:44:06 -0400 (EDT)*Reply-to*: hanlonr at cox.net*Sender*: owner-wri-mathgroup at wolfram.com

x /. {Reduce[(x - 3.) (x - 2.) (x + 7.) == 0, x] // ToRules} {-7., 2., 3.} Bob Hanlon ---- akil <akomur at wanadoo.nl> wrote: > After using reduce I get the following two types of answers: > > answer == Real1 || answer == Real2 > or > answer == Real3 > , the type can change from one formula to another. > > I need the Reals, and put them all in a list. The problem is getting all the > reals, without knowing which type I deal with, it should be able to be done > fast. > > I tried making a list of the returned adres, and then using > Cases[list, _Real, Infinity] and using Select[list,NumericQ] but both do not > give me the answer I require. > > How can I get the answer I require e.g. something like {Real1,Real2,Real3}