in reply to Autovivification in perl

..what is the use of autovivification in perl? i know we are using this for dynamical data structure .. i studied about autovivification but i couldn't understood this..

You could check this Explaining Autovivication, from perl monks.
Then this Autovivification in Perl: An In-Depth Tutorial

If you tell me, I'll forget.
If you show me, I'll remember.
if you involve me, I'll understand.
--- Author unknown to me

In Section Seekers of Perl Wisdom