Extends already realized

Some extends where already realized regarding the original project:

• An error managing system was added to AriNET in order to detect possible bugs.²⁵

• A Debug menu was created, in order to let the user to choosing between two errors displaying modes.

• The Misc menu contains various options, such as direct access to the on-line manual or some examples of designed arithmetical networks to help the beginner.²⁶