Distance Between Two Parametric Points

Distance Between Two Parametric Points

For:

$$P_1(a\cos\theta_1,b\sin\theta_1)$$

and:

$$P_2(a\cos\theta_2,b\sin\theta_2)$$

the distance between them is:

$$P_1P_2=\sqrt{a^2(\cos\theta_1-\cos\theta_2)^2+b^2(\sin\theta_1-\sin\theta_2)^2}$$

Usage

- Used to find the chord length when the parameters of both endpoints are known.