in Dennis Shasha's primer at chapter 9 we read:...This section assumes
you have some some familiarity...I assume one some would be more
link:http://adsabs.harvard.edu/abs/2006AIPC..839..236GFor those of you
who can read f...
Going through Dennis Shasha's primer, in chapter 6 where thedifference
function is defined, we can read:difference[c;d] /returns 0#` because
there is no such elementBut according to my downloaded free version it
is now:difference[c;d] /returns `symbo...