maxima-bugs

 [Maxima-bugs] [ maxima-Bugs-635338 ] ratsimp bug From: - 2002-11-08 05:17:26 ```Bugs item #635338, was opened at 2002-11-08 00:17 You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=635338&group_id=4933 Category: None Group: None Status: Open Resolution: None Priority: 5 Submitted By: Stavros Macrakis (macrakis) Assigned to: Nobody/Anonymous (nobody) Summary: ratsimp bug Initial Comment: In Maxima 5.5/Windows/gcl expr: -4*(SQRT(5)-1)/(SQRT(5)*(10-2*SQRT(5))* ((4*x+SQRT(5)+1)^2/(10-2*SQRT(5))+1)) -4*(SQRT(5)+1)/(SQRT(5)*(2*SQRT(5)+10)* ((4*x-SQRT(5)+1)^2/(2*SQRT(5)+10)+1))- (SQRT(5)+3)*(4*x+SQRT(5)+1)/ ((10*SQRT(5)+10)*(2*x^2+(SQRT(5)+1)*x+2)) +(SQRT(5)-3)*(4*x-SQRT(5)+1)/ ((10-10*SQRT(5))*(2*x^2+(1-SQRT(5))*x+2)) +1/(5*(x-1)) expr,x=1.1,numer => 1.638... exprsimp: ratsimp(expr) exprsimp,x=1.1,numer => 0.384...n (!!!) Other simplifications do not run into this problem, e.g. ratsimp(factor(expr)), ratsimp(rat(expr)), which nicely yield 1/(x^5-1). ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=635338&group_id=4933 ```
 [Maxima-bugs] [ maxima-Bugs-635338 ] ratsimp bug From: SourceForge.net - 2006-07-01 03:24:45 ```Bugs item #635338, was opened at 2002-11-07 22:17 Message generated for change (Comment added) made by robert_dodier You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=635338&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 Submitted By: Stavros Macrakis (macrakis) Assigned to: Nobody/Anonymous (nobody) Summary: ratsimp bug Initial Comment: In Maxima 5.5/Windows/gcl expr: -4*(SQRT(5)-1)/(SQRT(5)*(10-2*SQRT(5))* ((4*x+SQRT(5)+1)^2/(10-2*SQRT(5))+1)) -4*(SQRT(5)+1)/(SQRT(5)*(2*SQRT(5)+10)* ((4*x-SQRT(5)+1)^2/(2*SQRT(5)+10)+1))- (SQRT(5)+3)*(4*x+SQRT(5)+1)/ ((10*SQRT(5)+10)*(2*x^2+(SQRT(5)+1)*x+2)) +(SQRT(5)-3)*(4*x-SQRT(5)+1)/ ((10-10*SQRT(5))*(2*x^2+(1-SQRT(5))*x+2)) +1/(5*(x-1)) expr,x=1.1,numer => 1.638... exprsimp: ratsimp(expr) exprsimp,x=1.1,numer => 0.384...n (!!!) Other simplifications do not run into this problem, e.g. ratsimp(factor(expr)), ratsimp(rat(expr)), which nicely yield 1/(x^5-1). ---------------------------------------------------------------------- >Comment By: Robert Dodier (robert_dodier) Date: 2006-06-30 21:24 Message: Logged In: YES user_id=501686 Still present in 5.9.3cvs / sbcl 0.9.9. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=635338&group_id=4933 ```
 [Maxima-bugs] [ maxima-Bugs-635338 ] ratsimp bug From: SourceForge.net - 2006-08-27 00:24:13 ```Bugs item #635338, was opened at 2002-11-07 22:17 Message generated for change (Settings changed) made by robert_dodier You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=635338&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 - Simplification Group: None Status: Open Resolution: None Priority: 5 Submitted By: Stavros Macrakis (macrakis) Assigned to: Nobody/Anonymous (nobody) Summary: ratsimp bug Initial Comment: In Maxima 5.5/Windows/gcl expr: -4*(SQRT(5)-1)/(SQRT(5)*(10-2*SQRT(5))* ((4*x+SQRT(5)+1)^2/(10-2*SQRT(5))+1)) -4*(SQRT(5)+1)/(SQRT(5)*(2*SQRT(5)+10)* ((4*x-SQRT(5)+1)^2/(2*SQRT(5)+10)+1))- (SQRT(5)+3)*(4*x+SQRT(5)+1)/ ((10*SQRT(5)+10)*(2*x^2+(SQRT(5)+1)*x+2)) +(SQRT(5)-3)*(4*x-SQRT(5)+1)/ ((10-10*SQRT(5))*(2*x^2+(1-SQRT(5))*x+2)) +1/(5*(x-1)) expr,x=1.1,numer => 1.638... exprsimp: ratsimp(expr) exprsimp,x=1.1,numer => 0.384...n (!!!) Other simplifications do not run into this problem, e.g. ratsimp(factor(expr)), ratsimp(rat(expr)), which nicely yield 1/(x^5-1). ---------------------------------------------------------------------- Comment By: Robert Dodier (robert_dodier) Date: 2006-06-30 21:24 Message: Logged In: YES user_id=501686 Still present in 5.9.3cvs / sbcl 0.9.9. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=635338&group_id=4933 ```
 [Maxima-bugs] [ maxima-Bugs-635338 ] ratsimp bug From: SourceForge.net - 2007-08-04 17:43:48 ```Bugs item #635338, was opened at 2002-11-08 00:17 Message generated for change (Comment added) made by dgildea You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=635338&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 - Simplification Group: None >Status: Pending >Resolution: Works For Me Priority: 5 Private: No Submitted By: Stavros Macrakis (macrakis) Assigned to: Nobody/Anonymous (nobody) Summary: ratsimp bug Initial Comment: In Maxima 5.5/Windows/gcl expr: -4*(SQRT(5)-1)/(SQRT(5)*(10-2*SQRT(5))* ((4*x+SQRT(5)+1)^2/(10-2*SQRT(5))+1)) -4*(SQRT(5)+1)/(SQRT(5)*(2*SQRT(5)+10)* ((4*x-SQRT(5)+1)^2/(2*SQRT(5)+10)+1))- (SQRT(5)+3)*(4*x+SQRT(5)+1)/ ((10*SQRT(5)+10)*(2*x^2+(SQRT(5)+1)*x+2)) +(SQRT(5)-3)*(4*x-SQRT(5)+1)/ ((10-10*SQRT(5))*(2*x^2+(1-SQRT(5))*x+2)) +1/(5*(x-1)) expr,x=1.1,numer => 1.638... exprsimp: ratsimp(expr) exprsimp,x=1.1,numer => 0.384...n (!!!) Other simplifications do not run into this problem, e.g. ratsimp(factor(expr)), ratsimp(rat(expr)), which nicely yield 1/(x^5-1). ---------------------------------------------------------------------- >Comment By: Dan Gildea (dgildea) Date: 2007-08-04 13:43 Message: Logged In: YES user_id=1797506 Originator: NO Seems OK in 5.12.0. ---------------------------------------------------------------------- Comment By: Robert Dodier (robert_dodier) Date: 2006-06-30 23:24 Message: Logged In: YES user_id=501686 Still present in 5.9.3cvs / sbcl 0.9.9. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=635338&group_id=4933 ```
 [Maxima-bugs] [ maxima-Bugs-635338 ] ratsimp bug From: SourceForge.net - 2007-08-19 02:20:24 ```Bugs item #635338, was opened at 2002-11-07 21:17 Message generated for change (Comment added) made by sf-robot You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=635338&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 - Simplification Group: None >Status: Closed Resolution: Works For Me Priority: 5 Private: No Submitted By: Stavros Macrakis (macrakis) Assigned to: Nobody/Anonymous (nobody) Summary: ratsimp bug Initial Comment: In Maxima 5.5/Windows/gcl expr: -4*(SQRT(5)-1)/(SQRT(5)*(10-2*SQRT(5))* ((4*x+SQRT(5)+1)^2/(10-2*SQRT(5))+1)) -4*(SQRT(5)+1)/(SQRT(5)*(2*SQRT(5)+10)* ((4*x-SQRT(5)+1)^2/(2*SQRT(5)+10)+1))- (SQRT(5)+3)*(4*x+SQRT(5)+1)/ ((10*SQRT(5)+10)*(2*x^2+(SQRT(5)+1)*x+2)) +(SQRT(5)-3)*(4*x-SQRT(5)+1)/ ((10-10*SQRT(5))*(2*x^2+(1-SQRT(5))*x+2)) +1/(5*(x-1)) expr,x=1.1,numer => 1.638... exprsimp: ratsimp(expr) exprsimp,x=1.1,numer => 0.384...n (!!!) Other simplifications do not run into this problem, e.g. ratsimp(factor(expr)), ratsimp(rat(expr)), which nicely yield 1/(x^5-1). ---------------------------------------------------------------------- >Comment By: SourceForge Robot (sf-robot) Date: 2007-08-18 19:20 Message: Logged In: YES user_id=1312539 Originator: NO This Tracker item was closed automatically by the system. It was previously set to a Pending status, and the original submitter did not respond within 14 days (the time period specified by the administrator of this Tracker). ---------------------------------------------------------------------- Comment By: Dan Gildea (dgildea) Date: 2007-08-04 10:43 Message: Logged In: YES user_id=1797506 Originator: NO Seems OK in 5.12.0. ---------------------------------------------------------------------- Comment By: Robert Dodier (robert_dodier) Date: 2006-06-30 20:24 Message: Logged In: YES user_id=501686 Still present in 5.9.3cvs / sbcl 0.9.9. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=635338&group_id=4933 ```