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