i'm trying to study for an Analysis exam, but im gettin stuck on something which i imagine is quite trivial!!
here is an example from something we were taught in lectures.
lim = 0 (n )
and the proof is
> 0 given
take N( ) s.t. N( ) >
for n N( ) , we have
what i'm having trouble with is what actually is used for, and consequentially what N( ) means.
any help (in the simplest form) would be very much appreciated.