Solve or Reduce?

*To*: mathgroup at smc.vnet.net*Subject*: [mg64363] Solve or Reduce?*From*: Math Novice <math_novice_2 at yahoo.com>*Date*: Tue, 14 Feb 2006 01:31:39 -0500 (EST)*Sender*: owner-wri-mathgroup at wolfram.com

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.?