Conditional contour plot

Question

I want to plot implicit plots in certain regions. For example plot the section of the hyperbola that is in between the wedge. But I could not find out how to do this. Multiplying the first expression with a <> expression does not work.

plotting

kglr · Answer

You can also use ConditionalExpression as follows:
ContourPlot[{ConditionalExpression[x^2/15^2 - y^2/(-15^2 + 37^2), 
    Abs[y] <= Tan[15 Degree] (x + 37)] == 1, 
  Abs[y] == Tan[15 Degree] (x + 37)} ,
 {x, -50, 50}, {y, -50, 50}]

Ulrich Neumann · Answer

Add RegionFunctionas an option
ContourPlot[x^2/15^2 - y^2/(-15^2 + 37^2) == 1, {x, -50, 50}, {y, -50, 50}, 
RegionFunction ->Function[{x, y},y <= Tan[15 Degree] (x + 37) && y >= - Tan[15 Degree] (x + 37)]]

Conditional contour plot

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