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Re: Solve or Reduce?

  • To: mathgroup at
  • Subject: [mg64378] Re: [mg64363] Solve or Reduce?
  • From: Bob Hanlon <hanlonr at>
  • Date: Wed, 15 Feb 2006 03:31:49 -0500 (EST)
  • Reply-to: hanlonr at
  • Sender: owner-wri-mathgroup at

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


ImplicitPlot[(13 Cos[q]-(5+8 Cos[f]))^2+
        (13 Sin[q]-(7+8 Sin[f]))^2==49,

Bob Hanlon

> From: Math Novice <math_novice_2 at>
To: mathgroup at
> 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.?

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