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ideal(QuadricSurface) -- extracts the ideal of a surface

Synopsis

Description

Extracts the key Ideal of a QuadricSurface, a CubicSurface or a QuarticSurfaceRational. 
i1 : X = quadricSurface(ZZ/101[x,y,z,w]);
 
i2 : ideal X

o2 = ideal(- y*z + x*w)

               ZZ
o2 : Ideal of ---[x..z, w]
              101

Ways to use this method: