Angle arguments

The angle argument is used to represent the yaw (horizontal) angle in degrees. The value returned from this argument range from -180.0 (inclusive) to 180 (exclusive), with -180.0 being due north:

\begin{align} -1&80.0 \\ &\hspace{0.1em}N \\ &\uparrow \\ 90.0\ W \leftarrow &\hspace{0.75em}\rightarrow E\ -90.0 \\ &\downarrow \\ &\hspace{0.2em}S \\ &0.0 \\ \end{align}

The ~ notation can be used to specify a rotation relative to the executor's yaw angle.