how to generate random negative numbers

[Soren Orel <soren.orel@gmail.com>]

I know I could generate numbers like: 0; 1; 2

with:

$[ ( $RANDOM % 3 ) + 0 ]

But how could I generate numbers like: 0; 1; 2; -1; -2; etc? So negative+positive numbers too + zero

thank you