Re: showing a function bounded away from zero



On 04.05.2008 23:31, novis wrote:
what is the general procedure to show that a function bounded away
from zero in a small(that can be chosen suitably) interval around
origin?
suppose my function is for some constant c>0
f(x)=exp(icx) where i is complex number.

continuity?

--
Best wishes,
J.
.