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Implicit SurfaceIn mathematics and computer graphics, an implicit surface is defined as an isosurface of a function - .
In other words, it is the set of points in the 3d-space that satisfy the equation - .
To find a parametrisation of the 'surface' (more precisely the solution set, since not all equations of this type define a surface, or indeed define any points at all) one has to treat this relation as giving an implicit function Without loss of generality one may assume that the equation is of form - ,
but it is often convenient to allow the arbitrary constant on the right side.
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