Services & Resources / Wolfram Forums
-----
 /
MathGroup Archive
2007
*January
*February
*March
*April
*May
*June
*July
*August
*September
*October
*Archive Index
*Ask about this page
*Print this page
*Give us feedback
*Sign up for the Wolfram Insider

MathGroup Archive 2007

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: Solving periodic functions

  • To: mathgroup at smc.vnet.net
  • Subject: [mg74999] Re: Solving periodic functions
  • From: Bill Rowe <readnewsciv at sbcglobal.net>
  • Date: Fri, 13 Apr 2007 02:16:47 -0400 (EDT)

On 4/12/07 at 4:46 AM, w3bdevilREMOVE at THISw3bdevil.com (David Rees)
wrote:

>Anyway, in Mathematica, how do I solve an equation with multiple
>periodic functions within a given function domain bound?

>i.e. How would I find all values of x given 6Cos[x]-5Cos[x] = 0
>where 0<x<=2Pi ?

A very convenient way to accomplish this is with the RootSearch
package Ted Ersek wrote that can be found at

<http://library.wolfram.com/infocenter/MathSource/4482/>

=46or example after loading the package

In[2]:=
RootSearch[6*Cos[x] - 5*Sin[x] == 0, {x, 0, 2*Pi}]

Out[2]=
{{x->0.876058},{x->4.01765}}
--
To reply via email subtract one hundred and four


  • Prev by Date: Strange results from Mathematica
  • Next by Date: Re: Solving periodic functions
  • Previous by thread: Re: Solving periodic functions
  • Next by thread: Re: Solving periodic functions