[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: arithmetic
- To: Kim.fateman at UCB-C70
- Subject: Re: arithmetic
- From: Don Morrison <Morrison at UTAH-20>
- Date: Thu, 18 Mar 1982 14:35:00 -0000
- Cc: common-lisp at SU-AI
- In-reply-to: Your message of 17-Mar-82 1800-MST
Would it not make more sense to have 1/0, -1/0, and 0/0 print as something
which says infinity, -infinity, and undefined (e.g. #INF, #-INF, #UNDEF (I
know these aren't good choices, but you get the idea)). There is still
nothing to prevent the imlementer from representing them internally as
1/0,-1/0, and 0/0 and having everything fall through nicely; readers and
printers just have to be a little cleverer.
-------