Take two tangents of a parabola that are perpendicular to each other. The locus of all such points will be a line. This line is the directrix.
Expressions
| Name | Input | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Angle |  |
 |
 |
 |
 |
 |
 |
 |
 |
| Intersection | |
|
|
|
|
|
|
|
|
|
Take two tangents of a parabola that are perpendicular to each other. The locus of all such points will be a line. This line is the directrix. Expressions
|
|||||||||||||||||||||||||||||||||||||||||||||||||||
