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: [mg75000] Re: [mg74935] Solving periodic functions
  • From: Jmbatista at aol.com
  • Date: Fri, 13 Apr 2007 02:17:18 -0400 (EDT)

 
When dealing with transcendental functions, you should be able  to obtain all 
roots using the command "Reduce" instead of "Solve".   Therefore, given that 
0 < x <= 2 Pi, try the following  command:
 
            Reduce[6*Cos[x]  - 5*Cos[x] == 0, x]
 
Hope this helps,
J. Batista
______________
In a message dated 4/12/2007 5:08:56 A.M. Eastern Daylight Time,  
w3bdevilREMOVE at THISw3bdevil.com writes:

This is  probably totally elementary, but I'm stumped nonetheless.

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 ?

thanks 


 



  • Prev by Date: Re: Solving periodic functions
  • Next by Date: RE: Variable containing code
  • Previous by thread: Re: Solving periodic functions
  • Next by thread: Re: Solving periodic functions