rtoy
commented
4 months ago Imported from SourceForge on 2024-07-01 18:04:49 Created by robert_dodier on 2017-03-04 06:13:43 Original: https://sourceforge.net/p/maxima/bugs/3290/#7a61
I don't see that behavior. I tried it with both Clisp (Maxima 5.39.0) and GCL (post-5.39) on Ubuntu 14.04. Perhaps you can retry it with a new version?
EDIT: Fixed up formatting.
With Clisp:
$ maxima
Maxima 5.39.0 http://maxima.sourceforge.net
using Lisp CLISP 2.49 (2010-07-07)
Distributed under the GNU Public License. See the file COPYING.
Dedicated to the memory of William Schelter.
The function bug_report() provides bug reporting information.
(%i1) N:20;
(%o1) 20
(%i2) F:taylor((1+z)^(1/3),z,0,N);
2 3 4 5 6 7 8
z z 5 z 10 z 22 z 154 z 374 z 935 z
(%o2)/T/ 1 + - - -- + ---- - ----- + ----- - ------ + ------ - ------
3 9 81 243 729 6561 19683 59049
9 10 11 12 13 14
21505 z 55913 z 147407 z 1179256 z 3174920 z 8617640 z
+ -------- - --------- + ---------- - ----------- + ----------- - -----------
1594323 4782969 14348907 129140163 387420489 1162261467
15 16 17 18
70664648 z 194327782 z 537259162 z 13431479050 z
+ ------------ - ------------- + ------------- - ---------------
10460353203 31381059609 94143178827 2541865828329
19 20
37466757350 z 104906920580 z
+ --------------- - ---------------- + . . .
7625597484987 22876792454961
(%i3) tmp:coeff(F,z,1);
1
(%o3)/R/ -
3
(%i4) F/tmp;
2 3 4 5 6 7 8
z 5 z 10 z 22 z 154 z 374 z 935 z
(%o4)/T/ 3 + 1 z - -- + ---- - ----- + ----- - ------ + ------ - ------
3 27 81 243 2187 6561 19683
9 10 11 12 13 14
21505 z 55913 z 147407 z 1179256 z 3174920 z 8617640 z
+ -------- - --------- + ---------- - ----------- + ----------- - -----------
531441 1594323 4782969 43046721 129140163 387420489
15 16 17 18
70664648 z 194327782 z 537259162 z 13431479050 z
+ ------------ - ------------- + ------------- - ---------------
3486784401 10460353203 31381059609 847288609443
19 20
37466757350 z 104906920580 z
+ --------------- - ---------------- + . . .
2541865828329 7625597484987With GCL:
$ sh maxima-local -l gcl
Maxima branch_5_39_base_82_g59007f6_dirty http://maxima.sourceforge.net
using Lisp GNU Common Lisp (GCL) GCL 2.6.12
Distributed under the GNU Public License. See the file COPYING.
Dedicated to the memory of William Schelter.
The function bug_report() provides bug reporting information.
(%i1) N:20;
(%o1) 20
(%i2) F:taylor((1+z)^(1/3),z,0,N);
2 3 4 5 6 7 8
z z 5 z 10 z 22 z 154 z 374 z 935 z
(%o2)/T/ 1 + - - -- + ---- - ----- + ----- - ------ + ------ - ------
3 9 81 243 729 6561 19683 59049
9 10 11 12 13 14
21505 z 55913 z 147407 z 1179256 z 3174920 z 8617640 z
+ -------- - --------- + ---------- - ----------- + ----------- - -----------
1594323 4782969 14348907 129140163 387420489 1162261467
15 16 17 18
70664648 z 194327782 z 537259162 z 13431479050 z
+ ------------ - ------------- + ------------- - ---------------
10460353203 31381059609 94143178827 2541865828329
19 20
37466757350 z 104906920580 z
+ --------------- - ---------------- + . . .
7625597484987 22876792454961
(%i3) tmp:coeff(F,z,1);
1
(%o3)/R/ -
3
(%i4) F/tmp;
2 3 4 5 6 7 8
z 5 z 10 z 22 z 154 z 374 z 935 z
(%o4)/T/ 3 + 1 z - -- + ---- - ----- + ----- - ------ + ------ - ------
3 27 81 243 2187 6561 19683
9 10 11 12 13 14
21505 z 55913 z 147407 z 1179256 z 3174920 z 8617640 z
+ -------- - --------- + ---------- - ----------- + ----------- - -----------
531441 1594323 4782969 43046721 129140163 387420489
15 16 17 18
70664648 z 194327782 z 537259162 z 13431479050 z
+ ------------ - ------------- + ------------- - ---------------
3486784401 10460353203 31381059609 847288609443
19 20
37466757350 z 104906920580 z
+ --------------- - ---------------- + . . .
2541865828329 7625597484987
Imported from SourceForge on 2024-07-01 18:04:48 Created by igorpesando on 2017-03-03 18:58:40 Original: https://sourceforge.net/p/maxima/bugs/3290
Maxima version 5.37.2 using Lisp GNU Common Lisp (GCL) GCL 2.6.12 in ubuntu 16.04.2
Example: N:20; F:taylor((1+z)^(1/3),z,0,N); tmp:coeff(F,z,1); F/tmp;
the last command gives an error (with segfault if one tries to repeat it) Condition in MACSYMA-TOP-LEVEL [or a callee]: INTERNAL-SIMPLE-ERROR: Caught fatal error [memory may be damaged]