[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
more macsyma bignumery
- To: JPG at MIT-MC, BMT at MIT-MC
- Subject: more macsyma bignumery
- From: JONL at MIT-MC (Jon L White)
- Date: Fri, 28 Dec 79 17:34:00 GMT
- Cc: (BUG LISP) at MIT-MC
- Original-date: 28 DEC 1979 1234-EST
Date: 28 December 1979 06:13-EST
From: Jeffrey P. Golden <JPG at MIT-MC>
Date: Fri, 13 Oct 79 03:29:10 GMT
Original-Date: 12/10/79 23:29:10 EDT
gives QUOTIENT IS NOT EXACT.
(This is a bug in the LISP bignum division routine; see the message in
LISP;BUG MAIL ... wgd & bmt)
This bug is still happening even though JONL claims to have fixed the
bignum division bug in the current LISP on 12/13. Why is this?
Well, I claim to have fixed *some* bug, not all bugs, in bignum
division. Can you get a fix on the particular integers causing the
problem? The "lobotomy" bug of 12/13 concerned quotients whose value
is 2^n+1 for N > 35.
Date: 13 December 1979 08:37-EST
From: Jon L White <JONL at MIT-MC>
Subject: LOBOTOMY, and the (maybe found?) BIGNUM BUG
. . . Possibly only
divisions where the quotient is equal to a number of the
form 1+2^N for N > 36., will exercise this code, and
in all cases I've inspected, the removal of the (buggy)
code seems to be the right thing to do. . . .