You can subscribe to this list here.
2002 
_{Jan}

_{Feb}

_{Mar}

_{Apr}

_{May}

_{Jun}
(67) 
_{Jul}
(61) 
_{Aug}
(49) 
_{Sep}
(43) 
_{Oct}
(59) 
_{Nov}
(24) 
_{Dec}
(18) 

2003 
_{Jan}
(34) 
_{Feb}
(35) 
_{Mar}
(72) 
_{Apr}
(42) 
_{May}
(46) 
_{Jun}
(15) 
_{Jul}
(64) 
_{Aug}
(62) 
_{Sep}
(22) 
_{Oct}
(41) 
_{Nov}
(57) 
_{Dec}
(56) 
2004 
_{Jan}
(48) 
_{Feb}
(47) 
_{Mar}
(33) 
_{Apr}
(39) 
_{May}
(6) 
_{Jun}
(17) 
_{Jul}
(19) 
_{Aug}
(10) 
_{Sep}
(14) 
_{Oct}
(74) 
_{Nov}
(80) 
_{Dec}
(22) 
2005 
_{Jan}
(43) 
_{Feb}
(33) 
_{Mar}
(52) 
_{Apr}
(74) 
_{May}
(32) 
_{Jun}
(58) 
_{Jul}
(18) 
_{Aug}
(41) 
_{Sep}
(71) 
_{Oct}
(28) 
_{Nov}
(65) 
_{Dec}
(68) 
2006 
_{Jan}
(54) 
_{Feb}
(37) 
_{Mar}
(82) 
_{Apr}
(211) 
_{May}
(69) 
_{Jun}
(75) 
_{Jul}
(279) 
_{Aug}
(139) 
_{Sep}
(135) 
_{Oct}
(58) 
_{Nov}
(81) 
_{Dec}
(78) 
2007 
_{Jan}
(141) 
_{Feb}
(134) 
_{Mar}
(65) 
_{Apr}
(49) 
_{May}
(61) 
_{Jun}
(90) 
_{Jul}
(72) 
_{Aug}
(53) 
_{Sep}
(86) 
_{Oct}
(61) 
_{Nov}
(62) 
_{Dec}
(101) 
2008 
_{Jan}
(100) 
_{Feb}
(66) 
_{Mar}
(76) 
_{Apr}
(95) 
_{May}
(77) 
_{Jun}
(93) 
_{Jul}
(103) 
_{Aug}
(76) 
_{Sep}
(42) 
_{Oct}
(55) 
_{Nov}
(44) 
_{Dec}
(75) 
2009 
_{Jan}
(103) 
_{Feb}
(105) 
_{Mar}
(121) 
_{Apr}
(59) 
_{May}
(103) 
_{Jun}
(82) 
_{Jul}
(67) 
_{Aug}
(76) 
_{Sep}
(85) 
_{Oct}
(75) 
_{Nov}
(181) 
_{Dec}
(133) 
2010 
_{Jan}
(107) 
_{Feb}
(116) 
_{Mar}
(145) 
_{Apr}
(89) 
_{May}
(138) 
_{Jun}
(85) 
_{Jul}
(82) 
_{Aug}
(111) 
_{Sep}
(70) 
_{Oct}
(83) 
_{Nov}
(60) 
_{Dec}
(16) 
2011 
_{Jan}
(61) 
_{Feb}
(16) 
_{Mar}
(52) 
_{Apr}
(41) 
_{May}
(34) 
_{Jun}
(41) 
_{Jul}
(57) 
_{Aug}
(73) 
_{Sep}
(21) 
_{Oct}
(45) 
_{Nov}
(50) 
_{Dec}
(28) 
2012 
_{Jan}
(70) 
_{Feb}
(36) 
_{Mar}
(71) 
_{Apr}
(29) 
_{May}
(48) 
_{Jun}
(61) 
_{Jul}
(44) 
_{Aug}
(54) 
_{Sep}
(20) 
_{Oct}
(28) 
_{Nov}
(41) 
_{Dec}
(137) 
2013 
_{Jan}
(62) 
_{Feb}
(55) 
_{Mar}
(31) 
_{Apr}
(23) 
_{May}
(54) 
_{Jun}
(54) 
_{Jul}
(90) 
_{Aug}
(46) 
_{Sep}
(38) 
_{Oct}
(60) 
_{Nov}
(92) 
_{Dec}
(17) 
2014 
_{Jan}
(62) 
_{Feb}
(35) 
_{Mar}
(72) 
_{Apr}
(30) 
_{May}
(97) 
_{Jun}
(81) 
_{Jul}
(63) 
_{Aug}
(64) 
_{Sep}
(28) 
_{Oct}
(45) 
_{Nov}
(48) 
_{Dec}
(109) 
2015 
_{Jan}
(106) 
_{Feb}
(36) 
_{Mar}
(65) 
_{Apr}
(63) 
_{May}
(87) 
_{Jun}

_{Jul}

_{Aug}

_{Sep}

_{Oct}

_{Nov}

_{Dec}

S  M  T  W  T  F  S 



1
(3) 
2
(2) 
3
(5) 
4
(1) 
5

6

7

8
(2) 
9

10

11
(3) 
12
(1) 
13
(2) 
14
(1) 
15
(1) 
16
(8) 
17
(2) 
18

19

20
(2) 
21

22

23
(1) 
24

25
(1) 
26
(1) 
27
(1) 
28
(1) 
29
(6) 
30
(4) 
31



From: SourceForge.net <noreply@so...>  20120530 19:09:12

Bugs item #3530767, was opened at 20120530 02:38 Message generated for change (Settings changed) made by willisbl You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3530767&group_id=4933 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Lisp Core  Integration Group: None >Status: Closed Resolution: None Priority: 5 Private: No Submitted By: Barton Willis (willisbl) Assigned to: Nobody/Anonymous (nobody) Summary: integrate changes k[0] > k(0) Initial Comment: (%i1) x * (x^2 + k[0])/(1 + x^2); (%o1) (x*(x^2+k[0]))/(x^2+1) (%i2) integrate(%,x); (%o2) ((k(0)1)*log(x^2+1))/2+x^2/2 First reported by David Ronis on the mailing list (http://www.math.utexas.edu/pipermail/maxima/2012/028989.html)  Comment By: Barton Willis (willisbl) Date: 20120530 03:14 Message: The bug comes from subst10 (defined in sin.lisp). A possible fix is to change (atom ex) to ($mapatom ex). (defun subst10 (ex) (cond ((atom ex) ex) ((and (eq (caar ex) 'mexpt) (eq (cadr ex) var)) (list '(mexpt) var (integerp2 (quotient (caddr ex) *d*)))) (t (cons (ncons (caar ex)) (mapcar #'(lambda (c) (subst10 c)) (cdr ex))))))  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3530767&group_id=4933 
From: SourceForge.net <noreply@so...>  20120530 11:23:57

Bugs item #3529696, was opened at 20120525 01:13 Message generated for change (Comment added) made by chrisrein You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3529696&group_id=4933 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Lisp Core  Integration Group: None Status: Open Resolution: None Priority: 5 Private: No Submitted By: christoph reineke (chrisrein) Assigned to: Nobody/Anonymous (nobody) Summary: Problems with integral (x/(exp(x)+1),x,0,inf) Initial Comment: The correct result of integrate(x/(exp(x)+1),x,0,inf); should be pi^2/12. Maxima returns: (%o2) limit(x*log(%e^x+1)li[2](%e^x)+x^2/2,x,inf,minus)%pi^2/12 build_info("5.27.0","20120424 08:52:03","i686pcmingw32","GNU Common Lisp (GCL)","GCL 2.6.8") regards chris  >Comment By: christoph reineke (chrisrein) Date: 20120530 04:23 Message: Yes, it works. Thanks again! Shall we close this bug report? Regards Chris  Comment By: Aleksas (aleksasd) Date: 20120529 13:16 Message: Solution of the second problem: (%i1) S:'integrate(x/(exp(x)1),x,0,inf); (%o1) integrate(x/(%e^x1),x,0,inf) (%i2) intparts(S,u):=block([f,var,v,a,b], f:part(S,1),var:part(S,2),v:integrate(f/u,var), if last(S)#var then (a:part(S,3),b:part(S,4), limit(u*v,var,b,minus)limit(u*v,var,a,plus) 'integrate(v*diff(u,var),var,a,b)) else u*v'integrate(v*diff(u,var),var) )$ (%i3) changevar(S, y=exp(x)1, y, x); (%o3) integrate(log(y+1)/(y^2+y),y,0,inf) (%i4) intparts(%,log(y+1)); (%o4) integrate((log(y)log(y+1))/(y+1),y,0,inf) (%i5) logcontract(%); (%o5) integrate(log(y/(y+1))/(y+1),y,0,inf) (%i6) ev(%, nouns); (%o6) %pi^2/6 Aleksas D  Comment By: christoph reineke (chrisrein) Date: 20120529 05:27 Message: Thank you very much! By the way, we have the same problem with the similar expression integrate(x/(exp(x)1),x,0,inf)=pi^2/6. Sorry, I noticed that after submitting my first message! Regards Chris  Comment By: Aleksas (aleksasd) Date: 20120529 01:13 Message: my solution: (%i1) S:'integrate(x/(exp(x)+1),x,0,inf)$ (%i2) intparts(S,u):=block([f,var,v,a,b], f:part(S,1),var:part(S,2),v:integrate(f/u,var), if last(S)#var then (a:part(S,3),b:part(S,4), limit(u*v,var,b,minus)limit(u*v,var,a,plus) 'integrate(v*diff(u,var),var,a,b)) else u*v'integrate(v*diff(u,var),var) )$ (%i3) intparts(S,1/(exp(x)+1)); (%o3) integrate((x^2*%e^x)/(%e^x+1)^2,x,0,inf)/2 (%i4) ev(%, nouns); (%o4) %pi^2/12 (%i5) float(%), numer; (%o5) 0.82246703342411 (%i6) quad_qagi(x/(%e^x+1), x, 0, inf); (%o6) [0.82246703342411,5.9689712369638092*10^10,135,0] Aleksas D  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3529696&group_id=4933 
From: SourceForge.net <noreply@so...>  20120530 10:14:30

Bugs item #3530767, was opened at 20120530 02:38 Message generated for change (Comment added) made by willisbl You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3530767&group_id=4933 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Lisp Core  Integration Group: None Status: Open Resolution: None Priority: 5 Private: No Submitted By: Barton Willis (willisbl) Assigned to: Nobody/Anonymous (nobody) Summary: integrate changes k[0] > k(0) Initial Comment: (%i1) x * (x^2 + k[0])/(1 + x^2); (%o1) (x*(x^2+k[0]))/(x^2+1) (%i2) integrate(%,x); (%o2) ((k(0)1)*log(x^2+1))/2+x^2/2 First reported by David Ronis on the mailing list (http://www.math.utexas.edu/pipermail/maxima/2012/028989.html)  >Comment By: Barton Willis (willisbl) Date: 20120530 03:14 Message: The bug comes from subst10 (defined in sin.lisp). A possible fix is to change (atom ex) to ($mapatom ex). (defun subst10 (ex) (cond ((atom ex) ex) ((and (eq (caar ex) 'mexpt) (eq (cadr ex) var)) (list '(mexpt) var (integerp2 (quotient (caddr ex) *d*)))) (t (cons (ncons (caar ex)) (mapcar #'(lambda (c) (subst10 c)) (cdr ex))))))  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3530767&group_id=4933 
From: SourceForge.net <noreply@so...>  20120530 09:38:23

Bugs item #3530767, was opened at 20120530 02:38 Message generated for change (Tracker Item Submitted) made by willisbl You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3530767&group_id=4933 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Lisp Core  Integration Group: None Status: Open Resolution: None Priority: 5 Private: No Submitted By: Barton Willis (willisbl) Assigned to: Nobody/Anonymous (nobody) Summary: integrate changes k[0] > k(0) Initial Comment: (%i1) x * (x^2 + k[0])/(1 + x^2); (%o1) (x*(x^2+k[0]))/(x^2+1) (%i2) integrate(%,x); (%o2) ((k(0)1)*log(x^2+1))/2+x^2/2 First reported by David Ronis on the mailing list (http://www.math.utexas.edu/pipermail/maxima/2012/028989.html)  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3530767&group_id=4933 
From: SourceForge.net <noreply@so...>  20120529 20:16:24

Bugs item #3529696, was opened at 20120525 01:13 Message generated for change (Comment added) made by aleksasd You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3529696&group_id=4933 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Lisp Core  Integration Group: None Status: Open Resolution: None Priority: 5 Private: No Submitted By: christoph reineke (chrisrein) Assigned to: Nobody/Anonymous (nobody) Summary: Problems with integral (x/(exp(x)+1),x,0,inf) Initial Comment: The correct result of integrate(x/(exp(x)+1),x,0,inf); should be pi^2/12. Maxima returns: (%o2) limit(x*log(%e^x+1)li[2](%e^x)+x^2/2,x,inf,minus)%pi^2/12 build_info("5.27.0","20120424 08:52:03","i686pcmingw32","GNU Common Lisp (GCL)","GCL 2.6.8") regards chris  Comment By: Aleksas (aleksasd) Date: 20120529 13:16 Message: Solution of the second problem: (%i1) S:'integrate(x/(exp(x)1),x,0,inf); (%o1) integrate(x/(%e^x1),x,0,inf) (%i2) intparts(S,u):=block([f,var,v,a,b], f:part(S,1),var:part(S,2),v:integrate(f/u,var), if last(S)#var then (a:part(S,3),b:part(S,4), limit(u*v,var,b,minus)limit(u*v,var,a,plus) 'integrate(v*diff(u,var),var,a,b)) else u*v'integrate(v*diff(u,var),var) )$ (%i3) changevar(S, y=exp(x)1, y, x); (%o3) integrate(log(y+1)/(y^2+y),y,0,inf) (%i4) intparts(%,log(y+1)); (%o4) integrate((log(y)log(y+1))/(y+1),y,0,inf) (%i5) logcontract(%); (%o5) integrate(log(y/(y+1))/(y+1),y,0,inf) (%i6) ev(%, nouns); (%o6) %pi^2/6 Aleksas D  Comment By: christoph reineke (chrisrein) Date: 20120529 05:27 Message: Thank you very much! By the way, we have the same problem with the similar expression integrate(x/(exp(x)1),x,0,inf)=pi^2/6. Sorry, I noticed that after submitting my first message! Regards Chris  Comment By: Aleksas (aleksasd) Date: 20120529 01:13 Message: my solution: (%i1) S:'integrate(x/(exp(x)+1),x,0,inf)$ (%i2) intparts(S,u):=block([f,var,v,a,b], f:part(S,1),var:part(S,2),v:integrate(f/u,var), if last(S)#var then (a:part(S,3),b:part(S,4), limit(u*v,var,b,minus)limit(u*v,var,a,plus) 'integrate(v*diff(u,var),var,a,b)) else u*v'integrate(v*diff(u,var),var) )$ (%i3) intparts(S,1/(exp(x)+1)); (%o3) integrate((x^2*%e^x)/(%e^x+1)^2,x,0,inf)/2 (%i4) ev(%, nouns); (%o4) %pi^2/12 (%i5) float(%), numer; (%o5) 0.82246703342411 (%i6) quad_qagi(x/(%e^x+1), x, 0, inf); (%o6) [0.82246703342411,5.9689712369638092*10^10,135,0] Aleksas D  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3529696&group_id=4933 
From: SourceForge.net <noreply@so...>  20120529 17:50:48

Bugs item #3530272, was opened at 20120528 08:45 Message generated for change (Comment added) made by willisbl You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3530272&group_id=4933 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: None Group: None >Status: Closed Resolution: None Priority: 5 Private: No Submitted By: Richard Fateman (fateman) Assigned to: Nobody/Anonymous (nobody) Summary: nthroot, bad error msg Initial Comment: nthroot(x^2+2*x+1,3); gives error msg nthroot: x^2+2*x+1 is not a falseth power clearly that should be ... is not a " 3rd" power. Maxima version: 5.25.1 Maxima build date: 10:2 9/6/2011 Host type: i686pcmingw32 Lisp implementation type: GNU Common Lisp (GCL) Lisp implementation version: GCL 2.6.8  >Comment By: Barton Willis (willisbl) Date: 20120529 10:50 Message: Used suggested fix: commit 2ee87106eff0a1e234fd699c3d606009dba1b038  Comment By: Barton Willis (willisbl) Date: 20120529 07:11 Message: additional bugs: Just plain bogus: (%i16) nthroot(1/25,1); (%o16) 1 Shouldn't give a Lisp error (%i17) nthroot(25,x); Maxima encountered a Lisp error: Error in MACSYMATOPLEVEL [or a callee]: $X is not of type NUMBER. putative fix: (defmfun $nthroot(p n) (if (and (integerp n) (> n 0)) (let ((k (pnthrootp (cadr ($rat p)) n))) (if k (pdis k) (merror (intl:gettext "nthroot: ~M is not a ~M power") p (format nil "~:r" n) n))) (merror (intl::gettext "nthroot: ~M is not a positive integer") n)))  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3530272&group_id=4933 
From: SourceForge.net <noreply@so...>  20120529 16:55:13

Bugs item #3530591, was opened at 20120529 09:55 Message generated for change (Tracker Item Submitted) made by esseger You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3530591&group_id=4933 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Documentation Group: None Status: Open Resolution: None Priority: 5 Private: No Submitted By: Esseger (esseger) Assigned to: Nobody/Anonymous (nobody) Summary: correction in zeilberger documentation Initial Comment: line 58 in the documentation file zeilberger.texi is nonsense. It should be $$a_0 \, F_{n,k} + \ldots + a_d \, F_{n+d,k} = \Delta_k \left(R\left(n,k\right) F_{n,k}\right),$$  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3530591&group_id=4933 
From: SourceForge.net <noreply@so...>  20120529 14:11:32

Bugs item #3530272, was opened at 20120528 08:45 Message generated for change (Comment added) made by willisbl You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3530272&group_id=4933 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: None Group: None Status: Open Resolution: None Priority: 5 Private: No Submitted By: Richard Fateman (fateman) Assigned to: Nobody/Anonymous (nobody) Summary: nthroot, bad error msg Initial Comment: nthroot(x^2+2*x+1,3); gives error msg nthroot: x^2+2*x+1 is not a falseth power clearly that should be ... is not a " 3rd" power. Maxima version: 5.25.1 Maxima build date: 10:2 9/6/2011 Host type: i686pcmingw32 Lisp implementation type: GNU Common Lisp (GCL) Lisp implementation version: GCL 2.6.8  >Comment By: Barton Willis (willisbl) Date: 20120529 07:11 Message: additional bugs: Just plain bogus: (%i16) nthroot(1/25,1); (%o16) 1 Shouldn't give a Lisp error (%i17) nthroot(25,x); Maxima encountered a Lisp error: Error in MACSYMATOPLEVEL [or a callee]: $X is not of type NUMBER. putative fix: (defmfun $nthroot(p n) (if (and (integerp n) (> n 0)) (let ((k (pnthrootp (cadr ($rat p)) n))) (if k (pdis k) (merror (intl:gettext "nthroot: ~M is not a ~M power") p (format nil "~:r" n) n))) (merror (intl::gettext "nthroot: ~M is not a positive integer") n)))  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3530272&group_id=4933 
From: SourceForge.net <noreply@so...>  20120529 12:27:34

Bugs item #3529696, was opened at 20120525 01:13 Message generated for change (Comment added) made by chrisrein You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3529696&group_id=4933 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Lisp Core  Integration Group: None Status: Open Resolution: None Priority: 5 Private: No Submitted By: christoph reineke (chrisrein) Assigned to: Nobody/Anonymous (nobody) Summary: Problems with integral (x/(exp(x)+1),x,0,inf) Initial Comment: The correct result of integrate(x/(exp(x)+1),x,0,inf); should be pi^2/12. Maxima returns: (%o2) limit(x*log(%e^x+1)li[2](%e^x)+x^2/2,x,inf,minus)%pi^2/12 build_info("5.27.0","20120424 08:52:03","i686pcmingw32","GNU Common Lisp (GCL)","GCL 2.6.8") regards chris  >Comment By: christoph reineke (chrisrein) Date: 20120529 05:27 Message: Thank you very much! By the way, we have the same problem with the similar expression integrate(x/(exp(x)1),x,0,inf)=pi^2/6. Sorry, I noticed that after submitting my first message! Regards Chris  Comment By: Aleksas (aleksasd) Date: 20120529 01:13 Message: my solution: (%i1) S:'integrate(x/(exp(x)+1),x,0,inf)$ (%i2) intparts(S,u):=block([f,var,v,a,b], f:part(S,1),var:part(S,2),v:integrate(f/u,var), if last(S)#var then (a:part(S,3),b:part(S,4), limit(u*v,var,b,minus)limit(u*v,var,a,plus) 'integrate(v*diff(u,var),var,a,b)) else u*v'integrate(v*diff(u,var),var) )$ (%i3) intparts(S,1/(exp(x)+1)); (%o3) integrate((x^2*%e^x)/(%e^x+1)^2,x,0,inf)/2 (%i4) ev(%, nouns); (%o4) %pi^2/12 (%i5) float(%), numer; (%o5) 0.82246703342411 (%i6) quad_qagi(x/(%e^x+1), x, 0, inf); (%o6) [0.82246703342411,5.9689712369638092*10^10,135,0] Aleksas D  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3529696&group_id=4933 
From: SourceForge.net <noreply@so...>  20120529 08:13:32

Bugs item #3529696, was opened at 20120525 01:13 Message generated for change (Comment added) made by aleksasd You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3529696&group_id=4933 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Lisp Core  Integration Group: None Status: Open Resolution: None Priority: 5 Private: No Submitted By: christoph reineke (chrisrein) Assigned to: Nobody/Anonymous (nobody) Summary: Problems with integral (x/(exp(x)+1),x,0,inf) Initial Comment: The correct result of integrate(x/(exp(x)+1),x,0,inf); should be pi^2/12. Maxima returns: (%o2) limit(x*log(%e^x+1)li[2](%e^x)+x^2/2,x,inf,minus)%pi^2/12 build_info("5.27.0","20120424 08:52:03","i686pcmingw32","GNU Common Lisp (GCL)","GCL 2.6.8") regards chris  Comment By: Aleksas (aleksasd) Date: 20120529 01:13 Message: my solution: (%i1) S:'integrate(x/(exp(x)+1),x,0,inf)$ (%i2) intparts(S,u):=block([f,var,v,a,b], f:part(S,1),var:part(S,2),v:integrate(f/u,var), if last(S)#var then (a:part(S,3),b:part(S,4), limit(u*v,var,b,minus)limit(u*v,var,a,plus) 'integrate(v*diff(u,var),var,a,b)) else u*v'integrate(v*diff(u,var),var) )$ (%i3) intparts(S,1/(exp(x)+1)); (%o3) integrate((x^2*%e^x)/(%e^x+1)^2,x,0,inf)/2 (%i4) ev(%, nouns); (%o4) %pi^2/12 (%i5) float(%), numer; (%o5) 0.82246703342411 (%i6) quad_qagi(x/(%e^x+1), x, 0, inf); (%o6) [0.82246703342411,5.9689712369638092*10^10,135,0] Aleksas D  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3529696&group_id=4933 
From: SourceForge.net <noreply@so...>  20120528 15:45:50

Bugs item #3530272, was opened at 20120528 08:45 Message generated for change (Tracker Item Submitted) made by fateman You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3530272&group_id=4933 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: None Group: None Status: Open Resolution: None Priority: 5 Private: No Submitted By: Richard Fateman (fateman) Assigned to: Nobody/Anonymous (nobody) Summary: nthroot, bad error msg Initial Comment: nthroot(x^2+2*x+1,3); gives error msg nthroot: x^2+2*x+1 is not a falseth power clearly that should be ... is not a " 3rd" power. Maxima version: 5.25.1 Maxima build date: 10:2 9/6/2011 Host type: i686pcmingw32 Lisp implementation type: GNU Common Lisp (GCL) Lisp implementation version: GCL 2.6.8  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3530272&group_id=4933 
From: SourceForge.net <noreply@so...>  20120527 16:46:44

Bugs item #3529992, was opened at 20120526 11:06 Message generated for change (Settings changed) made by rtoy You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3529992&group_id=4933 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. >Category: Lisp Core  Floating point Group: None >Status: Closed >Resolution: Fixed Priority: 5 Private: No Submitted By: https://www.google.com/accounts () Assigned to: Nobody/Anonymous (nobody) Summary: Shi (sinh integral) wrong branch, integrate inconsisten Initial Comment: Note that expintegral_shi(x) is a real function  see A&S or Wolfram Alpha. http://www.wolframalpha.com/input/?i=integrate+Shi%28x%29+from+0+to+1%2F2 gives about .125872409 as does mpmath. (%i11) expand(float(integrate(expintegral_shi(x),x,0,1/2))); (%o11) 1.5707963267948966*%i+.12587240970345281 Extra pi/2? This come from (%i30) float(expintegral_shi(1/2)); (%o30) 3.141592653589793*%i+0.506996749819667 So Maxima is, oddly, using a different branch for this function even though they cite The Exponential Integral Shi(z) (A&S 5.2.3) and http://people.math.sfu.ca/~cbm/aands/page_231.htm clearly makes this something that should be real. See http://trac.sagemath.org/sage_trac/ticket/11143 where this was first noticed.  >Comment By: Raymond Toy (rtoy) Date: 20120527 09:46 Message: Fixed in git. Thanks for the report.  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3529992&group_id=4933 
From: SourceForge.net <noreply@so...>  20120526 18:06:38

Bugs item #3529992, was opened at 20120526 11:06 Message generated for change (Tracker Item Submitted) made by You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3529992&group_id=4933 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Lisp Core Group: None Status: Open Resolution: None Priority: 5 Private: No Submitted By: https://www.google.com/accounts () Assigned to: Nobody/Anonymous (nobody) Summary: Shi (sinh integral) wrong branch, integrate inconsisten Initial Comment: Note that expintegral_shi(x) is a real function  see A&S or Wolfram Alpha. http://www.wolframalpha.com/input/?i=integrate+Shi%28x%29+from+0+to+1%2F2 gives about .125872409 as does mpmath. (%i11) expand(float(integrate(expintegral_shi(x),x,0,1/2))); (%o11) 1.5707963267948966*%i+.12587240970345281 Extra pi/2? This come from (%i30) float(expintegral_shi(1/2)); (%o30) 3.141592653589793*%i+0.506996749819667 So Maxima is, oddly, using a different branch for this function even though they cite The Exponential Integral Shi(z) (A&S 5.2.3) and http://people.math.sfu.ca/~cbm/aands/page_231.htm clearly makes this something that should be real. See http://trac.sagemath.org/sage_trac/ticket/11143 where this was first noticed.  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3529992&group_id=4933 
From: SourceForge.net <noreply@so...>  20120525 08:13:28

Bugs item #3529696, was opened at 20120525 01:13 Message generated for change (Tracker Item Submitted) made by chrisrein You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3529696&group_id=4933 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Lisp Core  Integration Group: None Status: Open Resolution: None Priority: 5 Private: No Submitted By: christoph reineke (chrisrein) Assigned to: Nobody/Anonymous (nobody) Summary: Problems with integral (x/(exp(x)+1),x,0,inf) Initial Comment: The correct result of integrate(x/(exp(x)+1),x,0,inf); should be pi^2/12. Maxima returns: (%o2) limit(x*log(%e^x+1)li[2](%e^x)+x^2/2,x,inf,minus)%pi^2/12 build_info("5.27.0","20120424 08:52:03","i686pcmingw32","GNU Common Lisp (GCL)","GCL 2.6.8") regards chris  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3529696&group_id=4933 
From: SourceForge.net <noreply@so...>  20120523 17:33:41

Bugs item #3529144, was opened at 20120523 10:33 Message generated for change (Tracker Item Submitted) made by mjorlitzky You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3529144&group_id=4933 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Lisp Core  Integration Group: None Status: Open Resolution: None Priority: 5 Private: No Submitted By: Michael Orlitzky (mjorlitzky) Assigned to: Nobody/Anonymous (nobody) Summary: Error integrating exp(x)*sinh(sqrt(x)) with domain: complex Initial Comment: This was previously fixed in bug #3292033, and worked for both real and complex domains in Maxima 5.26. But there seems to have been a regression with domain: complex. This became apparent in Sage where we set domain: complex; by default. ;;; Loading #P"/usr/lib64/ecl12.2.1/sbbsdsockets.fas" ;;; Loading #P"/usr/lib64/ecl12.2.1/sockets.fas" ;;; Loading #P"/usr/lib64/ecl12.2.1/defsystem.fas" ;;; Loading #P"/usr/lib64/ecl12.2.1/cmp.fas" Maxima 5.27.0 http://maxima.sourceforge.net using Lisp ECL 12.2.1 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) display2d:false; (%o1) false (%i2) integrate(exp(x)*sinh(sqrt(x)),x,0,inf); (%o2) %e^(1/4)*sqrt(%pi)/2 (%i3) domain:complex; (%o3) complex (%i4) integrate(exp(x)*sinh(sqrt(x)),x,0,inf); (%o4) 0  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3529144&group_id=4933 
From: SourceForge.net <noreply@so...>  20120520 09:34:35

Bugs item #3528329, was opened at 20120519 22:49 Message generated for change (Comment added) made by willisbl You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3528329&group_id=4933 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Lisp Core  Plotting Group: None >Status: Closed >Resolution: Invalid Priority: 5 Private: No Submitted By: Shalva (shalvaz) Assigned to: Nobody/Anonymous (nobody) Summary: Define functions and plotting Initial Comment: We define a function f as f(x):=block([],if(x>=1 and x<1/4) then return(2),if(x>=1/4 and x<0) then return(1),if(x>=0 and x<1/4) then return(1),if(x>=1/4 and x<1) then return(2)); If I try plot2d(f,[x,1,1]); appears: "plot2d: expression evaluates to nonnumeric value somewhere in plotting range." but plotting window appears and graphic of the function f is correct. If I try plot2d(f(x),[x,1,1]); appears: return: not within 'block' return: not within 'block' return: not within 'block' ... plot2d: expression evaluates to nonnumeric value somewhere in plotting range. plotting window not appears in this case.  >Comment By: Barton Willis (willisbl) Date: 20120520 02:34 Message: You want plot2d('(f(x)),[x,1,1]);  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3528329&group_id=4933 
From: SourceForge.net <noreply@so...>  20120520 05:49:02

Bugs item #3528329, was opened at 20120519 22:49 Message generated for change (Tracker Item Submitted) made by shalvaz You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3528329&group_id=4933 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Lisp Core  Plotting Group: None Status: Open Resolution: None Priority: 5 Private: No Submitted By: Shalva (shalvaz) Assigned to: Nobody/Anonymous (nobody) Summary: Define functions and plotting Initial Comment: We define a function f as f(x):=block([],if(x>=1 and x<1/4) then return(2),if(x>=1/4 and x<0) then return(1),if(x>=0 and x<1/4) then return(1),if(x>=1/4 and x<1) then return(2)); If I try plot2d(f,[x,1,1]); appears: "plot2d: expression evaluates to nonnumeric value somewhere in plotting range." but plotting window appears and graphic of the function f is correct. If I try plot2d(f(x),[x,1,1]); appears: return: not within 'block' return: not within 'block' return: not within 'block' ... plot2d: expression evaluates to nonnumeric value somewhere in plotting range. plotting window not appears in this case.  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3528329&group_id=4933 
From: SourceForge.net <noreply@so...>  20120517 19:43:18

Bugs item #3522796, was opened at 20120501 08:42 Message generated for change (Comment added) made by blahota You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3522796&group_id=4933 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Installation Group: None Status: Open Resolution: None Priority: 5 Private: No Submitted By: Blahota István (blahota) Assigned to: Nobody/Anonymous (nobody) Summary: maxima 5.27.0 debuild fails Initial Comment: System: Ubuntu 12.04, 10.04 (I've tied these.) The "./configure, make, sudo make install" works correctly, but if I would make deb packages, using debuild I got this message (at the end): "... Summary: SBCL enabled. Executable name: "sbcl" default lisp: sbcl wish executable name: "wish" cd && /bin/bash ./config.status Makefile /bin/bash: ./config.status: No such file or directory make[1]: *** [Makefile] Error 127 make[1]: Leaving directory `/home/blahota/Dokumentumok/sandbox/maxima5.27.0' make: *** [buildstamp] Error 2 dpkgbuildpackage: error: debian/rules build gave error exit status 2 debuild: fatal error at line 1350: dpkgbuildpackage rfakeroot D us uc failed" And here the debuild process stops. It worked with the older maxima versions. The sytuation is the same with clisp, too.  >Comment By: Blahota István (blahota) Date: 20120517 12:43 Message: It seems using automake1.9 instead of automake1.10 solved the problem.  Comment By: Robert Dodier (robert_dodier) Date: 20120516 14:07 Message: What, exactly, are the commands which you are executing? I will give it a try on my system.  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3522796&group_id=4933 
From: SourceForge.net <noreply@so...>  20120517 19:04:46

Bugs item #3525924, was opened at 20120511 11:46 Message generated for change (Comment added) made by riotorto You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3525924&group_id=4933 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Xmaxima or other UI Group: None >Status: Closed >Resolution: Fixed Priority: 5 Private: No Submitted By: Wilson Mixon (jwmixon) Assigned to: Nobody/Anonymous (nobody) Summary: wxdraw does not work in 5.27.0 (Windows) Initial Comment: I've installed 5.27.0 and then 5.27.01. In both cases, wxdraw fails to generate output. Still working in wxMaxima, draw works as expected. build_info("5.27.0","20120508 11:27:57","i686pcmingw32","GNU Common Lisp (GCL)","GCL 2.6.8")  >Comment By: Mario Rodriguez Riotorto (riotorto) Date: 20120517 12:04 Message: Fixed in the git repository.  Mario  Comment By: Mario Rodriguez Riotorto (riotorto) Date: 20120517 12:04 Message: The reported bug is not present in the current cvs version of Maxima. Thank you for your report. If you see this bug in a later version of Maxima, please submit a new bug report.  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3525924&group_id=4933 
From: SourceForge.net <noreply@so...>  20120516 22:50:34

Bugs item #3526606, was opened at 20120514 08:24 Message generated for change (Comment added) made by rswarbrick You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3526606&group_id=4933 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Lisp Core  Assume Group: None Status: Closed Resolution: Invalid Priority: 5 Private: No Submitted By: Rupert Swarbrick (rswarbrick) Assigned to: Nobody/Anonymous (nobody) Summary: Strange pos/neg/zero behaviour of is(). Initial Comment: Without any assume() calls, Maxima sensibly realizes that it doesn't know the sign of h: (%i1) is(h>0); (%o1) unknown (%i2) is(h<0); (%o2) unknown However, it's certain that h is nonzero?! (%i3) is(h=0); (%o3) false (%i4)  Comment By: Rupert Swarbrick (rswarbrick) Date: 20120516 15:50 Message: Oops. I'm sure I even explained that to someone on the mailing list once. Sorry for the silly bug report.  Comment By: Robert Dodier (robert_dodier) Date: 20120516 14:02 Message: "=" is only syntactic equality; it tests whether the expression on the left is the same expression as on the right. So is(h=0) => false is the correct result, because the expression h is not the same expression as 0. is(equal(h, 0)) => unknown, on the other hand. Closing this report as invalid.  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3526606&group_id=4933 
From: SourceForge.net <noreply@so...>  20120516 22:49:31

Bugs item #3527229, was opened at 20120516 01:43 Message generated for change (Comment added) made by rswarbrick You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3527229&group_id=4933 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Lisp Core Group: None Status: Closed Resolution: Invalid Priority: 5 Private: No Submitted By: Rupert Swarbrick (rswarbrick) Assigned to: Nobody/Anonymous (nobody) Summary: Odd syntax error for noncommutative multiplacation Initial Comment: I can't think of another meaning of a.0: shouldn't this be fine? (%i26) a.0; incorrect syntax: 0.0 is not an infix operator a.0; ^ (%i26) a . 0; (%o26) 0  Comment By: Rupert Swarbrick (rswarbrick) Date: 20120516 15:49 Message: Ah, I didn't realise about that. Sorry for the noise.  Comment By: Robert Dodier (robert_dodier) Date: 20120516 13:59 Message: a.0 is interpreted as a .0 in which .0 is floating point zero. (It is not necessary to write floating point numbers with a leading digit.) Closing this report as invalid.  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3527229&group_id=4933 
From: SourceForge.net <noreply@so...>  20120516 22:13:45

Bugs item #3527409, was opened at 20120516 15:13 Message generated for change (Tracker Item Submitted) made by woollett You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3527409&group_id=4933 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: None Group: None Status: Open Resolution: None Priority: 5 Private: No Submitted By: Ted Woollett (woollett) Assigned to: Nobody/Anonymous (nobody) Summary: build_info with display2d = false Initial Comment: This output looks weird and probably was not intended: (%i1) display2d:false$ (%i2) build_info(); (%o2) ?%build_info("5.27.0","20120508 11:27:57","i686pcmingw32", "GNU Common Lisp (GCL)","GCL 2.6.8") (%i3) display2d:true$ (%i4) build_info(); (%o4) Maxima version: "5.27.0" Maxima build date: "20120508 11:27:57" Host type: "i686pcmingw32" Lisp implementation type: "GNU Common Lisp (GCL)" Lisp implementation version: "GCL 2.6.8" Ted Woollett  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3527409&group_id=4933 
From: SourceForge.net <noreply@so...>  20120516 21:07:19

Bugs item #3522796, was opened at 20120501 08:42 Message generated for change (Comment added) made by robert_dodier You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3522796&group_id=4933 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Installation Group: None Status: Open Resolution: None Priority: 5 Private: No Submitted By: Blahota István (blahota) Assigned to: Nobody/Anonymous (nobody) Summary: maxima 5.27.0 debuild fails Initial Comment: System: Ubuntu 12.04, 10.04 (I've tied these.) The "./configure, make, sudo make install" works correctly, but if I would make deb packages, using debuild I got this message (at the end): "... Summary: SBCL enabled. Executable name: "sbcl" default lisp: sbcl wish executable name: "wish" cd && /bin/bash ./config.status Makefile /bin/bash: ./config.status: No such file or directory make[1]: *** [Makefile] Error 127 make[1]: Leaving directory `/home/blahota/Dokumentumok/sandbox/maxima5.27.0' make: *** [buildstamp] Error 2 dpkgbuildpackage: error: debian/rules build gave error exit status 2 debuild: fatal error at line 1350: dpkgbuildpackage rfakeroot D us uc failed" And here the debuild process stops. It worked with the older maxima versions. The sytuation is the same with clisp, too.  >Comment By: Robert Dodier (robert_dodier) Date: 20120516 14:07 Message: What, exactly, are the commands which you are executing? I will give it a try on my system.  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3522796&group_id=4933 
From: SourceForge.net <noreply@so...>  20120516 21:02:39

Bugs item #3526606, was opened at 20120514 08:24 Message generated for change (Settings changed) made by robert_dodier You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3526606&group_id=4933 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Lisp Core  Assume Group: None >Status: Closed >Resolution: Invalid Priority: 5 Private: No Submitted By: Rupert Swarbrick (rswarbrick) Assigned to: Nobody/Anonymous (nobody) Summary: Strange pos/neg/zero behaviour of is(). Initial Comment: Without any assume() calls, Maxima sensibly realizes that it doesn't know the sign of h: (%i1) is(h>0); (%o1) unknown (%i2) is(h<0); (%o2) unknown However, it's certain that h is nonzero?! (%i3) is(h=0); (%o3) false (%i4)  >Comment By: Robert Dodier (robert_dodier) Date: 20120516 14:02 Message: "=" is only syntactic equality; it tests whether the expression on the left is the same expression as on the right. So is(h=0) => false is the correct result, because the expression h is not the same expression as 0. is(equal(h, 0)) => unknown, on the other hand. Closing this report as invalid.  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3526606&group_id=4933 
From: SourceForge.net <noreply@so...>  20120516 20:59:09

Bugs item #3527229, was opened at 20120516 01:43 Message generated for change (Settings changed) made by robert_dodier You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3527229&group_id=4933 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Lisp Core Group: None >Status: Closed >Resolution: Invalid Priority: 5 Private: No Submitted By: Rupert Swarbrick (rswarbrick) Assigned to: Nobody/Anonymous (nobody) Summary: Odd syntax error for noncommutative multiplacation Initial Comment: I can't think of another meaning of a.0: shouldn't this be fine? (%i26) a.0; incorrect syntax: 0.0 is not an infix operator a.0; ^ (%i26) a . 0; (%o26) 0  >Comment By: Robert Dodier (robert_dodier) Date: 20120516 13:59 Message: a.0 is interpreted as a .0 in which .0 is floating point zero. (It is not necessary to write floating point numbers with a leading digit.) Closing this report as invalid.  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3527229&group_id=4933 