Hey Matt! ;-) I was thinking of another instance where this is noticeable: In a certain moving-mesh hydrodynamics code, the author was forced to use integers i

Hey Matt! ;-) I was thinking of another instance where this is noticeable: In a certain moving-mesh hydrodynamics code, the author was forced to use integers instead of doubles to perform intersection tests, because the "uneven" precision of the floating points can give the wrong answer to which side of a face a point is on, which leads to errors in the Voronoi tessellation.