Re: Resolve a function

*To*: mathgroup at smc.vnet.net*Subject*: [mg89703] Re: [mg89697] Resolve a function*From*: "Szabolcs HorvÃt" <szhorvat at gmail.com>*Date*: Wed, 18 Jun 2008 06:40:07 -0400 (EDT)*References*: <200806180825.EAA26254@smc.vnet.net>

On Wed, Jun 18, 2008 at 11:25, maria <m.massaouti at windowslive.com> wrote: > Dear all, > I am new with mathematica. I would be grateful if someone could tell > me how can I find the general solutions of the r for the following > function f(r_) = 14.4* ((2/Sqrt[r^2 + R^2]) - 1/r ) (where > R=constant). I just want to express the function as r =.....*f. Is > this possible with mathematica. You should show us what you've tried so far (have you tried reading the documentation?) Try this: Solve[144/10*((2/Sqrt[r^2 + R^2]) - 1/r) == f, r]

**References**:**Resolve a function***From:*maria <m.massaouti@windowslive.com>