Geometric Transformations of the Plane
The words geometric transformation, if taken out of context, mean neither more nor less than a function that maps one set of geometric objects on another. However, those transformtaions that are worth studying have special properties, for example, like forming a group, preserving distances or angles. Various geometries can be defined as a study of invariants under specific groups of (geometric) transformations. Geometric transformations also provide powerful tools for solving geometric problems.

- Plane Isometries
- Plane Isometries As Complex Functions
- Affine Transformations (definition)
- Inversion
- Projective transformation (definition)
References
- H. S. M. Coxeter, Introduction to Geometry, John Wiley & Sons, 1961
- C. Dodge, Euclidean Geometry and Transformations, Dover, 2004
- H. Eves, A Survey of Geometry, Allyn and Bacon, 1972
- D. Pedoe, Geometry: A Comprehensive Course, Dover, 1988
- I. M. Yaglom, Geometric Transformations I, II, III, MAA, 1962

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