MathGroup Archive 2005

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

Search the Archive

Crossing of 3D functions

I have two functions of surfaces

      Exp[\(-3.076\)*\((r - 1.184)\)]*\((1 - 
          8.28*10\^\(-5\)*\((180\  - \ f)\)\^2)\)*0.7\^0.5 + 
    3.758*Exp[\(-6.152\)*\((r - 1.184)\)] + 3.92\)


F2=\!\(\(-0.958\)*\ Exp[\(-4.993\)*\((r - 1.375)\)]*\((1 - \
1.07*10\^\(-3\)*\((133\  - \ f)\)\^2)\)*1\^0.5 + 0.479*
          Exp[\(-9.986\)*\((r - 1.375)\)] + 0.479\)

variables are r and f

I want to find a plot which describes crossing of these functions. 

I tried Solve command but without any success

I also tried a simpler example
Fa=Exp[-(x^2 + y^2)]
and when I used
Solve[Fa == Fb, {y}]
I received y1 and y2 - two parts of wanted function
How to obtain one function (circle) from the above Fa nad Fb?

Please Help

  • Prev by Date: Re: solve() problem since new ROM update
  • Next by Date: Re: solve() problem since new ROM update
  • Previous by thread: Re: another image problem
  • Next by thread: Re: Crossing of 3D functions