epsilon

   [see {delta}]

   1. n. A small quantity of anything. "The cost is epsilon."

   2.  adj.  Very  small,  negligible; less than {marginal}. "We can get
   this feature for epsilon cost."

   3.  within  epsilon  of: close enough to be indistinguishable for all
   practical  purposes,  even closer than being within delta of. "That's
   not  what  I  asked  for,  but it's within epsilon of what I wanted."
   Alternatively,  it  may  mean  not  close  enough, but very little is
   required to get it there: "My program is within epsilon of working."

[glossary]
[Reference(s) to this entry by made by: {critical mass}{delta}{epsilon squared}{gang bang}{lost in the underflow}{marginally}{within epsilon of}]