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Question: For which x- and y- values these two bounded 3D surfaces are positive and for which negative?

Question:For which x- and y- values these two bounded 3D surfaces are positive and for which negative?

MaPal93 145 Maple 2023
solve fsolve plot3d inequality parametric
June 06 2024
0

I have two surfaces crossing the z=0 plane for some ranges of x and y values.

For the first surface, x=Gamma is bounded between 0 and 10 and y=rho between -1 and +1. For the second surface, x=Gamma_1 is bounded between 0 and 10 and y=Gamma_2 between 0 and 10 as well. I want to clearly identify (parametric):

  1. For which Gamma and rho ranges of values the first surface is positive (and for which negative)
  2. For which Gamma_1 and Gamma_2 ranges of values the second surface is positive (and for which negative)

Worksheet: sign_regions.mw (highlighted in yellow my two failed attempts)
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