In formal language theory, this refers to an abstract family of languages that is closed under homeomorphism to regular languages. It represents an affine variety and in linea
In formal language theory, this refers to an abstract family of languages that is closed under homeomorphism to regular languages. It represents an affine variety and in linear algebra, this refers to a subset of a vector space closed with respect to multiplication by positive scalars. Inner and outer objects tangent to this and also to a plane intersecting this are known as Dandelin Spheres. When this is truncated by a plane parallel to its base, it is known as a frustum. Having a volume equal to one-third its base times its height, for 10 points, name this geometric solid which also names photoreceptor cells sensitive to bright light in the retina along with rods.
In formal language theory, this refers to an abstract family of languages that is closed under homeomorphism to regular languages.
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