How to define set of numbers without some special numbers?

[Christian Hoehle]

Hi all,

i recently tried to do a plot of a function with a value range of (x |
(-100 <= x <= 100) \ {0; -3; 2}).
Any idea how to realize that?
Most probably i just didn't find the manual's page describing definition
of sets omitting special numbers... or yust didn't get the right keyword
to search for ;-)

Thanks for all hints.

Cheers,
Chris