Solving implicit equation in Blender
(generated with geometry nodes)
An implicit equation is a mathematical equation in which the relationship between the variables is not explicitly solved for one of the variables. In other words, it does not represent a function in the form of y = f(x), where you can isolate one variable (usually y) on one side of the equation and express it explicitly in terms of the other variable (x). Instead, in an implicit equation, both variables are typically interrelated within the equation, and you cannot easily isolate one variable.
Blender has no build in solution to realize implicit formulars in geometry nodes, so it was necessary to use a volume node to create the strange objects