A perspective collineation in which the center and axis are incident.
Elation
See also
Geometric HomologyExplore with Wolfram|Alpha
References
Coxeter, H. S. M. "Collineations and Correlations." §14.6 in Introduction to Geometry, 2nd ed. New York: Wiley, pp. 247-252, 1969.Referenced on Wolfram|Alpha
ElationCite this as:
Weisstein, Eric W. "Elation." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/Elation.html