Normal Developable
A Ruled Surface 
is a normal developable of a curve 
if can be parameterized by
, where N is the Normal Vector.
References
Gray, A. ``Developables.'' §17.6 in Modern Differential Geometry of Curves and Surfaces. Boca Raton, FL: CRC Press, pp. 352-354, 1993.
- Independent Equations
- Independent Sequence
- Independent Statistics
- Independent Vertices
- Indeterminate Problems
- Index
- Index Set
- Index Theory
- Indicatrix
- Indicial Equation
- Indifference Principle
- Induced Map
- Induced Norm
- Induction
- Induction Axiom
- Induction Principle
- Inequality
- Inexact Differential
- Inf
- Infimum
- Infimum Limit
- Infinary Divisor
- Infinary Multiperfect Number
- Infinary Perfect Number
- Infinite