Position.TestOpsOperators to be used for tests.
val (=~) : Units.Meters.t -> Units.Meters.t -> boolTwo distances being almost equal.
val (=~*) : Units.Degrees.t -> Units.Degrees.t -> boolTwo angles in degrees being almost equal.
val (=~**) : Units.Radians.t -> Units.Radians.t -> boolTwo angles in radians being almost equal.