bind stack overflow factoring 7th degree poly
- Subject: bind stack overflow factoring 7th degree poly
- From: Robert Dodier
- Date: Thu, 1 Feb 2007 17:43:02 -0700
On 2/1/07, Barton Willis <willisb at unk.edu> wrote:
> 156*x^7+4808*x^6-182041*x^5-1266489*x^4+43104271*x^3+29839285*x^2-2542327662*x+7826952672
>
> (%i8) factor(%);
> Maxima encountered a Lisp error:
> Error in MACSYMA-TOP-LEVEL [or a callee]: Bind stack overflow.
CMUCL 0.19a + Maxima 5.9.1 says "NIL is not of type FIXNUM" here.
A fixnum overflow or an integer that's not a fixnum? Just guessing.
Here's a partial stack trace --
0: (POINTERGP NIL #:|x1627|)
1: (PDEGREE (#:|x1627| 7 156 6 4808 ...) NIL)
2: (PDEGREE 2 (#:|x1627| 7 156 6 4808 ...) NIL)[:EXTERNAL]
3: (PFACTORALG1 (#:|x1627| 7 156 6 4808 ...) (NIL) 0)
4: (PFACTORALG1 3 (#:|x1627| 7 156 6 4808 ...) (NIL) 0)[:EXTERNAL]
5: (NALGFAC (#:|x1627| 7 156 6 4808 ...) (NIL))
6: (FACT5 #<unavailable-arg>)
7: (FACTOR72 (#:|x1627| 7 156 6 4808 ...))
8: (FACTOR1972 (#:|x1627| 7 156 6 4808 ...))
9: (PFACTORANY (#:|x1627| 7 156 6 4808 ...))
10: (PFACTOR1 (#:|x1627| 7 156 6 4808 ...))
11: (PFACTOR11 ((#:|x1627| 7 156 6 4808 ...) 1))
12: (PFACTOR11 1 ((#:|x1627| 7 156 6 4808 ...) 1))[:EXTERNAL]
13: (PFACTOR (#:|x1627| 7 156 6 4808 ...))
14: (RATFACT ((#:|x1627| 7 156 6 4808 ...) . 1) #<unavailable-arg>)
HTH
Robert