Re: symbolic evaluation

*To*: mathgroup at smc.vnet.net*Subject*: [mg87044] Re: symbolic evaluation*From*: Roland Franzius <roland.franzius at uos.de>*Date*: Sun, 30 Mar 2008 01:15:29 -0500 (EST)*References*: <fsl267$g9p$1@smc.vnet.net>

p3aul schrieb: > Thank you all for your answers, but they all result in Mathematica > "solving" the equation and giving the answer 2, which is not what I > need. What I need is for Mathematica to transpose the formula giving > as out put x = 14/7. I beginning to believe that mathematica can't do > it because the designer didn't put that capability in it. This must > be a hard concept for a computer to do. It just seems simple to me. > What's wrong with "out[1]= {{x -> 14/2}}" Which output I can't seem > to get. > Paul:( :-) Symbolize e.g as digit string to avoid the trivial evaluation simplifications in: Solve["7" x == "14", x] out: {{x -> 14/7}} If there are many numbers you may use the rule equation/. a_?NumberQ :> ToString[a] -- Roland Franzius