Re: How to access Solve solutions of eq.system as functions

*To*: mathgroup at smc.vnet.net*Subject*: [mg126063] Re: How to access Solve solutions of eq.system as functions*From*: Bob Hanlon <hanlonr357 at gmail.com>*Date*: Sat, 14 Apr 2012 03:10:49 -0400 (EDT)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com*References*: <201204130846.EAA19184@smc.vnet.net>

Clear[n, ne]; sol = With[ {tnr = 1, te = 1, b = 1, d = 1, f = 1, nemax = 1}, Solve[{ g - n/tnr - b n^2 - f n^2 (1 - ne/nemax) + d ne == 0, f n^2 (1 - ne/nemax) - ne/te - d ne == 0}, {n, ne}]] // Simplify; n[g_] = n /. sol; ne[g_] = ne /. sol; Plot[Evaluate[n[g]], {g, -0.5, .5}] Plot[Evaluate[ne[g]], {g, -0.5, 0.5}] Bob Hanlon On Fri, Apr 13, 2012 at 4:46 AM, getjonas <getjonas at gmail.com> wrote: > i am solving a two equation system with two variables (n, ne) and one > parameter (g): > > Solve[{g - n/tnr - b n^2 - f n^2 (1 - ne / nemax) + d ne == 0, > > f n^2 (1 - ne/nemax) - ne/te - d ne == 0}, {n, ne}] > > Here tnr, te, b, d and f are all previously defined numbers. > > i get four pairs of analytical solutions, as expected. > > The question is, how to access these solutions (n, ne) as functions of > parameter g? I.e., how to plot n[g], ne[g]? >

**References**:**How to access Solve solutions of eq.system as functions***From:*getjonas <getjonas@gmail.com>