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Affine may refer to:
- Affine geometry, a geometry not involving any notions of origin, length or angle
- Affine space, an abstract structure that generalises the affine-geometric properties of Euclidean space
- Affine combination, a certain kind of constrained linear combination
- Affine transformation, a linear transformation followed by a translation between two vector spaces, or equivalently, a transformation that preserves all affine combinations
- Affine group, the group of all invertible affine transformations from any affine space over a field K into itself
- Affine representation, a continuous group homomorphism whose values are automorphisms of an affine space
- Affine connection, a connection on the tangent bundle of a differentiable manifold
- Affine cipher, a special case of the more general substitution cipher
See also
"Affine"