Rodrigues's Curvature Formula
where
is the unit Normal Vector and 
is one of the two Principal Curvatures.See also Normal Vector, Principal Curvatures- Linear Extension
- Linear Fractional Transformation
- Linear Group
- Linear Group Theorem
- Linearly Dependent Curves
- Linearly Dependent Functions
- Linearly Dependent Vectors
- Linearly Independent
- Linear Operator
- Linear Ordinary Differential Equation
- Linear Programming
- Linear Recurrence Sequence
- Linear Regression
- Linear Space
- Linear Stability
- Linear Transformation
- Line at Infinity
- Line Bisector
- Line Element
- Line Graph
- Line Integral
- Line of Curvature
- Line Segment
- Line Space
- L(infinity)-Norm