] 1. n. A small quantity of anything. "The
cost is epsilon." 2. adj. Very small, negligible; less than
. "We can get this feature for epsilon cost."
3. `within epsilon of' close enough to be indistinguishable for
all practical purposes. This is 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."