Ellipse Caustic Curve
For an Ellipse given by
 |  |  | (1) |
 | |  | (2) |
with light source at
, the Caustic is | |  | (3) |
| |  | (4) |
where
 | |  | |
 |  | ||
|  | (5) | |
 | |  | |
|  | (6) | |
 | |  | (7) |
 | |  | |
|  | (8) |
At
, | |  | (9) |
| |  | (10) |
- Linear Equation
- Linear Equation System
- 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