Angle Bisectors of Two Vectors

Angle Bisectors of Two Vectors

For non-zero vectors $$\vec a$$ and $$\vec b$$, the internal angle-bisector direction is:

$$\frac{\vec a}{|\vec a|}+\frac{\vec b}{|\vec b|}$$

The external angle-bisector direction is:

$$\frac{\vec a}{|\vec a|}-\frac{\vec b}{|\vec b|}$$

Usage

- Used to find directions of internal and external angle bisectors.