/// <summary>
/// Adds a rotation and a scalar value.
/// </summary>
public static Rot2d operator +(double angle, Rot2d rot)
{
return(Rot2d.Add(rot, angle));
}
/// <summary>
/// Adds 2 rotations.
/// </summary>
public static Rot2d operator +(Rot2d r0, Rot2d r1)
{
return(Rot2d.Add(r0, r1));
}