Commit ff3897df2d994bbb2c5a20297f71a1a1e76ecef9
2015-10-29T09:44:23
Clarify Section 8. * The phrase "difference between these distances" can either refer to the conceptual difference (i.e. they hae different semantic meaning) or to the mathematical difference (i.e. use substraction for the two). Instead, just remove the sentence since the equations below make it clear what we're supposed to do here.