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Restricting the Domain of a implicit function in GeoGebra

To graph an implicit function with boundaries in GeoGebra, you use the ImplicitCurve command, first setting the equation in the standard form f(x, y) = 0. Then, to define the boundaries, use the conditional operator commands for each implicit function variable specifying the desired range of x or y values. For example. fx(x) = If(x ≥ ax ∧ x ≤ bx, x, ∞); fy(x) = If(x ≥ ay ∧ x ≤ by, x, ∞) ax, bx, ay, by -selected variable boundaries. x²+y²=9 →fx(x)² +fy(x)² =9 Forum: https://www.reddit.com/r/geogebra/comments/1npb1xu/restricting_the_domain_of_a_implicit_function/