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From: SourceForge.net <noreply@so...>  20111128 18:01:56

Bugs item #3443554, was opened at 20111127 15:31 Message generated for change (Comment added) made by jcvtrip You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3443554&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: Ripley (jensenripley) Assigned to: Nobody/Anonymous (nobody) Summary: Tío different results for an integral Initial Comment: Hello, By integrating sqrt(4*x^2y^2) into the triangle {0<x<1; 0<y<x} in two diffferent order: integrate( integrate( sqrt(4*x^2y^2), x , y, 1), y , 0,1) Integrate( integrate( sqrt(4*x^2y^2), y, 0, x), x, 0,1) WxMaxime give two different results. Where is the mistake?  Comment By: jcvtrip (jcvtrip) Date: 20111128 10:01 Message: Hello, Here you have a transcript... Maxima version: 5.25.1 Maxima build date: 9:14 9/5/2011 Host type: i686appledarwin10.8.0 Lisp implementation type: SBCL Lisp implementation version: 1.0.47 expres:sqrt(4*x^2y^2); (%o5) sqrt(4*x^2y^2) integrate(integrate(expres, x,y,1),y,0,1); "Is "y1" positive, negative, or zero?"n; "Is "y" positive or negative?"p; (%o6) (3*log(4*sqrt(3)+8)+4*%pi1)/18 ev(%o6,numer); (%o12) 1.093118188249627 integrate(integrate(expres, y, 0,x),x,0,1); "Is "x" positive, negative, or zero?"p; (%o10) (2*%pi+3^(3/2))/18 ev(%o10,numer); (%o13) .6377409849936787  Comment By: Ripley (jensenripley) Date: 20111128 08:28 Message: Thank you rswarbrick but you mistaked the input line ( % i3)... You wrote Integrate(integrate(expr, x,0, x), x,0,1) instead of Integrate(integrate(expr, y, 0, x) ,x ,0,1)  Comment By: Rupert Swarbrick (rswarbrick) Date: 20111128 01:15 Message: Drat. I didn't realise that sourceforge would eat the text formatting. If it isn't clear, the first time I get an answer with logs and sqrts. The second time, I get a more complicated integrate noun form.  Comment By: Rupert Swarbrick (rswarbrick) Date: 20111128 01:13 Message: With a recent version of the sources, I get the following: Maxima 5.25post http://maxima.sourceforge.net using Lisp SBCL 1.0.53.0.debian 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) expr: sqrt(4*x^2y^2); 2 2 (%o1) sqrt(4 x  y ) (%i2) integrate(integrate(expr, x, y, 1), y, 0, 1); Is y  1 positive, negative, or zero? n; Is y positive or negative? pos; 3 log(4 sqrt(3) + 8) + 4 %pi  1 (%o2)  18 (%i3) integrate(integrate(expr, x, 0, x), x, 0, 1); Is x positive, negative, or zero? pos; Is y positive or negative? pos; rat: replaced 1.e8 by 1/100000000 = 1.e8 <snip lots more rat warnings: eugh.> Is y positive or negative? pos; 1 / 2 2 2 2 [ y log(4 sqrt(4 x  y ) + 8 x) y log(4 %i y) (%o3) I (  +  ] 4 4 / 0 2 2 x sqrt(4 x  y ) + ) dx 2 This, while unhelpful isn't wrong. Can you post a transcript of what you actually do and get (use maxima from the command line, maybe). Definitely include the version of Maxima that you're using. Rupert  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3443554&group_id=4933 
From: SourceForge.net <noreply@so...>  20111128 16:28:21

Bugs item #3443554, was opened at 20111127 15:31 Message generated for change (Comment added) made by jensenripley You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3443554&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: Ripley (jensenripley) Assigned to: Nobody/Anonymous (nobody) Summary: Tío different results for an integral Initial Comment: Hello, By integrating sqrt(4*x^2y^2) into the triangle {0<x<1; 0<y<x} in two diffferent order: integrate( integrate( sqrt(4*x^2y^2), x , y, 1), y , 0,1) Integrate( integrate( sqrt(4*x^2y^2), y, 0, x), x, 0,1) WxMaxime give two different results. Where is the mistake?  Comment By: Ripley (jensenripley) Date: 20111128 08:28 Message: Thank you rswarbrick but you mistaked the input line ( % i3)... You wrote Integrate(integrate(expr, x,0, x), x,0,1) instead of Integrate(integrate(expr, y, 0, x) ,x ,0,1)  Comment By: Rupert Swarbrick (rswarbrick) Date: 20111128 01:15 Message: Drat. I didn't realise that sourceforge would eat the text formatting. If it isn't clear, the first time I get an answer with logs and sqrts. The second time, I get a more complicated integrate noun form.  Comment By: Rupert Swarbrick (rswarbrick) Date: 20111128 01:13 Message: With a recent version of the sources, I get the following: Maxima 5.25post http://maxima.sourceforge.net using Lisp SBCL 1.0.53.0.debian 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) expr: sqrt(4*x^2y^2); 2 2 (%o1) sqrt(4 x  y ) (%i2) integrate(integrate(expr, x, y, 1), y, 0, 1); Is y  1 positive, negative, or zero? n; Is y positive or negative? pos; 3 log(4 sqrt(3) + 8) + 4 %pi  1 (%o2)  18 (%i3) integrate(integrate(expr, x, 0, x), x, 0, 1); Is x positive, negative, or zero? pos; Is y positive or negative? pos; rat: replaced 1.e8 by 1/100000000 = 1.e8 <snip lots more rat warnings: eugh.> Is y positive or negative? pos; 1 / 2 2 2 2 [ y log(4 sqrt(4 x  y ) + 8 x) y log(4 %i y) (%o3) I (  +  ] 4 4 / 0 2 2 x sqrt(4 x  y ) + ) dx 2 This, while unhelpful isn't wrong. Can you post a transcript of what you actually do and get (use maxima from the command line, maybe). Definitely include the version of Maxima that you're using. Rupert  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3443554&group_id=4933 
From: SourceForge.net <noreply@so...>  20111128 09:15:02

Bugs item #3443554, was opened at 20111127 15:31 Message generated for change (Comment added) made by rswarbrick You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3443554&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: Ripley (jensenripley) Assigned to: Nobody/Anonymous (nobody) Summary: Tío different results for an integral Initial Comment: Hello, By integrating sqrt(4*x^2y^2) into the triangle {0<x<1; 0<y<x} in two diffferent order: integrate( integrate( sqrt(4*x^2y^2), x , y, 1), y , 0,1) Integrate( integrate( sqrt(4*x^2y^2), y, 0, x), x, 0,1) WxMaxime give two different results. Where is the mistake?  Comment By: Rupert Swarbrick (rswarbrick) Date: 20111128 01:15 Message: Drat. I didn't realise that sourceforge would eat the text formatting. If it isn't clear, the first time I get an answer with logs and sqrts. The second time, I get a more complicated integrate noun form.  Comment By: Rupert Swarbrick (rswarbrick) Date: 20111128 01:13 Message: With a recent version of the sources, I get the following: Maxima 5.25post http://maxima.sourceforge.net using Lisp SBCL 1.0.53.0.debian 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) expr: sqrt(4*x^2y^2); 2 2 (%o1) sqrt(4 x  y ) (%i2) integrate(integrate(expr, x, y, 1), y, 0, 1); Is y  1 positive, negative, or zero? n; Is y positive or negative? pos; 3 log(4 sqrt(3) + 8) + 4 %pi  1 (%o2)  18 (%i3) integrate(integrate(expr, x, 0, x), x, 0, 1); Is x positive, negative, or zero? pos; Is y positive or negative? pos; rat: replaced 1.e8 by 1/100000000 = 1.e8 <snip lots more rat warnings: eugh.> Is y positive or negative? pos; 1 / 2 2 2 2 [ y log(4 sqrt(4 x  y ) + 8 x) y log(4 %i y) (%o3) I (  +  ] 4 4 / 0 2 2 x sqrt(4 x  y ) + ) dx 2 This, while unhelpful isn't wrong. Can you post a transcript of what you actually do and get (use maxima from the command line, maybe). Definitely include the version of Maxima that you're using. Rupert  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3443554&group_id=4933 
From: SourceForge.net <noreply@so...>  20111128 09:13:24

Bugs item #3443554, was opened at 20111127 15:31 Message generated for change (Comment added) made by rswarbrick You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3443554&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: Ripley (jensenripley) Assigned to: Nobody/Anonymous (nobody) Summary: Tío different results for an integral Initial Comment: Hello, By integrating sqrt(4*x^2y^2) into the triangle {0<x<1; 0<y<x} in two diffferent order: integrate( integrate( sqrt(4*x^2y^2), x , y, 1), y , 0,1) Integrate( integrate( sqrt(4*x^2y^2), y, 0, x), x, 0,1) WxMaxime give two different results. Where is the mistake?  Comment By: Rupert Swarbrick (rswarbrick) Date: 20111128 01:13 Message: With a recent version of the sources, I get the following: Maxima 5.25post http://maxima.sourceforge.net using Lisp SBCL 1.0.53.0.debian 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) expr: sqrt(4*x^2y^2); 2 2 (%o1) sqrt(4 x  y ) (%i2) integrate(integrate(expr, x, y, 1), y, 0, 1); Is y  1 positive, negative, or zero? n; Is y positive or negative? pos; 3 log(4 sqrt(3) + 8) + 4 %pi  1 (%o2)  18 (%i3) integrate(integrate(expr, x, 0, x), x, 0, 1); Is x positive, negative, or zero? pos; Is y positive or negative? pos; rat: replaced 1.e8 by 1/100000000 = 1.e8 <snip lots more rat warnings: eugh.> Is y positive or negative? pos; 1 / 2 2 2 2 [ y log(4 sqrt(4 x  y ) + 8 x) y log(4 %i y) (%o3) I (  +  ] 4 4 / 0 2 2 x sqrt(4 x  y ) + ) dx 2 This, while unhelpful isn't wrong. Can you post a transcript of what you actually do and get (use maxima from the command line, maybe). Definitely include the version of Maxima that you're using. Rupert  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3443554&group_id=4933 
From: SourceForge.net <noreply@so...>  20111128 04:29:11

Bugs item #3439895, was opened at 20111118 05:05 Message generated for change (Comment added) made by willisbl You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3439895&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: None Priority: 5 Private: No Submitted By: lumbricus () Assigned to: Barton Willis (willisbl) Summary: makeset can't deal with sets of sets Initial Comment: It's not possible to use makeset(exp(x), [x], set) where x itself is a set. To reproduce try: makeset(union(x), [x], {[{1}]}); Error: append: argument must be a nonatomic expression; found x In the beginning I didn't think it was a bug, so I asked here for help: http://stackoverflow.com/questions/8182094/maximausingmakesetwithagivenset  >Comment By: Barton Willis (willisbl) Date: 20111127 20:29 Message: Fixed by Commit: a63cdfedc191c7c241080ae1969e80189a6b55d8  Comment By: Stavros Macrakis (macrakis) Date: 20111120 13:00 Message: That statement doesn't work, but the diagnosis is incorrect. The problem is that makeset evaluates its arguments. Try makeset('(union(x,{2,3})), [x], {[{1}],[{5}]}); instead. In my opinion, this is a design error in makeset. It's also confusing that makeset, makelist, and create_list have such different semantics.  Comment By: lumbricus () Date: 20111119 06:16 Message: Thanks a lot for the fast reply, the workaround works great!  Comment By: Stavros Macrakis (macrakis) Date: 20111118 12:38 Message: makeset, unlike makelist, evaluates its arguments, which is a poor design. Sorry about that. There is a workaround for this: makeset('(union(x)), [x], {[{1}]});' but we'll fix this for future versions. Thanks for bringing this to our attention.  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3439895&group_id=4933 
From: SourceForge.net <noreply@so...>  20111128 04:25:18

Bugs item #3358420, was opened at 20110708 04:53 Message generated for change (Comment added) made by willisbl You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3358420&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: Share Libraries Group: None >Status: Closed Resolution: None Priority: 4 Private: No Submitted By: Barton Willis (willisbl) Assigned to: Barton Willis (willisbl) Summary: nfloat bug Initial Comment: Wrong: (%i6) nfloat(%i,[],20); Unable to evaluate to requested number of digits  an error. To debug this try: debugmode(true); Correct: (%i9) nfloat(1.0*%i,[],20); (%o9) 1.0b0*%i  >Comment By: Barton Willis (willisbl) Date: 20111127 20:25 Message: Fixed by Commit:6209d4d40f52f7c7a82e57ef2dfe82470fc85ebe  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3358420&group_id=4933 
From: SourceForge.net <noreply@so...>  20111128 04:22:30

Bugs item #3426847, was opened at 20111021 04:17 Message generated for change (Comment added) made by willisbl You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3426847&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: Barton Willis (willisbl) Assigned to: Barton Willis (willisbl) Summary: float hypergeometric error  fix Initial Comment: Bogus: (%i1) hypergeometric([1],[3/2,3/2], 10000.0),fpprec : 56; (%o1) 4.3929157271741888*10^65 OK: (%i2) hypergeometric([1],[3/2,3/2], 10000.0b0),fpprec : 56; (%o2) 4.0120302702491972103831671317134763299116280927551908191b4 Putative fix: In hypergeometricbyseries, replace ;; estimate number of correct digits: (setq dig (floor (* ( (log (max (abs s) (epsilon (bigfloat x)))) (log (* es (epsilon (bigfloat x))))) #.(/ (log 2) (log 10))))) with (setq dig (floor (* ( (log (max (abs s) (epsilon x))) (log (* es (epsilon x)))) #.(/ (log 2) (log 10)))))  >Comment By: Barton Willis (willisbl) Date: 20111127 20:22 Message: fixed by Commit:6209d4d40f52f7c7a82e57ef2dfe82470fc85ebe  You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=3426847&group_id=4933 