Geometrography
A quantitative measure of the simplicity of a Geometric Construction which reduces geometric constructions to five steps. It was devised by È. Lemoine.
Place a Straightedge's Edge through a given Point,
Draw a straight Line,
Place a Point of a Compass on a given Point,
Place a Point of a Compass on an indeterminate Point on a Line,
Draw a Circle.
, 
, 
, 
, and 
, respectively, then theSimplicity is 
and the symbol is 
.It is apparently an unsolved problem to determine if a given GeometricConstruction is of the smallest possible simplicity.See also Simplicity
References
De Temple, D. W. ``Carlyle Circles and the Lemoine Simplicity of Polygonal Constructions.'' Amer. Math. Monthly 98, 97-108, 1991. Eves, H. An Introduction to the History of Mathematics, 6th ed. New York: Holt, Rinehart, and Winston, 1990.
- T-Polyomino
- T-Puzzle
- Trace (Complex)
- Trace (Group)
- Trace (Map)
- Trace (Matrix)
- Trace (Tensor)
- Tractory
- Tractrix
- Tractrix Evolute
- Tractrix Radial Curve
- Tractroid
- Transcendental Curve
- Transcendental Equation
- Transcendental Function
- Transcendental Number
- Transcritical Bifurcation
- Transfer Function
- Convergent Sequence
- Convergent Series
- Conversion Period
- Convex
- Convex Function
- Convex Hull
- Convex Optimization Theory