# T.4. Asynchronous Programming, Math

In the final set, there are 2 tasks focused on programming with
‹asyncio› and one that extends ‹t3/lisp.py› into a simple numeric
language based on ‹numpy›.

 1. ‹chat›    – a line-based chat server
 2. ‹reversi› – an HTTP+JSON game server
 3. ‹numeval› – a simple expression language for numeric computation