Chord Joining Two Parametric Points

Chord Joining Two Parametric Points

For points corresponding to eccentric angles $$\theta_1$$ and $$\theta_2$$:

$$\frac{x\cos\left(\frac{\theta_1+\theta_2}{2}\right)}{a}+\frac{y\sin\left(\frac{\theta_1+\theta_2}{2}\right)}{b}=\cos\left(\frac{\theta_1-\theta_2}{2}\right)$$

Usage

- Used to obtain the chord joining two specified parametric points.