Converts this 2-dimensional vector from Cartesian
to Polar
coordinates. It is assumed that the first element is the **x**
coordinate, and the second element is the **y** coordinate. The
first element becomes the **radius** and the second becomes the
angle **theta**.
Converts this 2-dimensional vector from Cartesian to Polar coordinates. It is assumed that the first element is the **x** coordinate, and the second element is the **y** coordinate. The first element becomes the **radius** and the second becomes the angle **theta**.