Re: Solve or Reduce?
- To: mathgroup at smc.vnet.net
- Subject: [mg64378] Re: [mg64363] Solve or Reduce?
- From: Bob Hanlon <hanlonr at cox.net>
- Date: Wed, 15 Feb 2006 03:31:49 -0500 (EST)
- Reply-to: hanlonr at cox.net
- Sender: owner-wri-mathgroup at wolfram.com
C[1] is the first arbitrary constant (highlight C and select from the menu Help/Find Selected Function.../ Do the same for && and other unknown operators. Your equation was somewhat garbled. Try something like this Needs["Graphics`"]; ImplicitPlot[(13 Cos[q]-(5+8 Cos[f]))^2+ (13 Sin[q]-(7+8 Sin[f]))^2==49, {q,0,4Pi},{f,0,4Pi},PlotPoints->100]; Bob Hanlon > > From: Math Novice <math_novice_2 at yahoo.com> To: mathgroup at smc.vnet.net > Subject: [mg64378] [mg64363] Solve or Reduce? > > > I'm looking to solve the equation > > (13 Cos[q]-(5+8 Cos[f]))^2+(13 Sin[q]-(7+8 Sin[f]))^2?49 > > so that I can graph phi as a function of theta in the first quadrant only. A graph of the solution obtained using the Solve command produces unexpected results and I haven't used Mathematica much so I'm having trouble intrepreting the results that the Reduce operation produces. I understand that the solution is periodic but can someone interpret what the other symbols in the solution mean, e.g., C[1], &&, || etc.? > >