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back projections
plural of back projection
map projections
plural of map projection
projective varieties
projective variety
(algebraic geometry) A Zariski closed subvariety of a projective space; the zero-locus of a set of homogeneous polynomials that generates a prime ideal.
projection matrix
(linear algebra) A transformation matrix whose associated transformation is a projection.
projection matrices
stereographic projections
stereographic projection
(projective geometry, complex analysis, cartography) A function that maps a sphere onto a plane; especially, the map generated by projecting each point of the sphere from the sphere's (designated) north pole to a point on the plane tangent to the south pole.
projective line
(projective geometry) A line that includes a point at infinity; a line in a projective space; a projective space of dimension 1.
projective lines
plural of projective line