more macsyma bignumery

[JONL at MIT-MC (Jon L White)]

    Date: 28 December 1979 06:13-EST
    From: Jeffrey P. Golden <JPG at MIT-MC>
From: 	RWG@MIT-MC
Date: Fri, 13 Oct 79 03:29:10 GMT
Original-Date: 12/10/79 23:29:10 EDT
Subject:
	loadfile(qnotex,taylor,aljabr); taylor(qnotex,q,0,0);
	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.  . . .