## [Maxima-bugs] [ maxima-Bugs-974734 ] derivatives of Taylor polynonials

 [Maxima-bugs] [ maxima-Bugs-974734 ] derivatives of Taylor polynonials From: SourceForge.net - 2004-06-17 13:30:56 ```Bugs item #974734, was opened at 2004-06-17 08:30 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=974734&group_id=4933 Category: None Group: None Status: Open Resolution: None Priority: 5 Submitted By: Barton Willis (willisbl) Assigned to: Nobody/Anonymous (nobody) Summary: derivatives of Taylor polynonials Initial Comment: Derivatives of Taylor polynomials sometimes are not simplified; an example (%i1) taylor(x/(1+x),x,inf,4); (%o1) 1-1/x+1/x^2-1/x^3+1/x^4 (%i2) diff(%,x); (%o2) 1/x^2-2/(x^2*x)+3/(x^2*x^2)-4/(x^2*x^3) Notice the x^2 * x, x^2 * x^2, ... terms. Sometimes derivatives of Taylor polynomials work fine (%i3) taylor(x/(1+x),x,1,4); (%o3) 1/2+(x-1)/4-(x-1)^2/8+(x-1)^3/16-(x-1)^4/32 (%i4) diff(%,x); (%o4) 1/4-(x-1)/4+3*(x-1)^2/16-(x-1)^3/8 %i5) build_info(); Maxima version: 5.9.0.1cvs Maxima build date: 12:16 5/28/2004 host type: i686-pc-mingw32 lisp-implementation-type: Kyoto Common Lisp lisp-implementation-version: GCL 2.7.0 Barton ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=974734&group_id=4933 ```

 [Maxima-bugs] [ maxima-Bugs-974734 ] derivatives of Taylor polynonials From: SourceForge.net - 2004-06-17 13:30:56 ```Bugs item #974734, was opened at 2004-06-17 08:30 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=974734&group_id=4933 Category: None Group: None Status: Open Resolution: None Priority: 5 Submitted By: Barton Willis (willisbl) Assigned to: Nobody/Anonymous (nobody) Summary: derivatives of Taylor polynonials Initial Comment: Derivatives of Taylor polynomials sometimes are not simplified; an example (%i1) taylor(x/(1+x),x,inf,4); (%o1) 1-1/x+1/x^2-1/x^3+1/x^4 (%i2) diff(%,x); (%o2) 1/x^2-2/(x^2*x)+3/(x^2*x^2)-4/(x^2*x^3) Notice the x^2 * x, x^2 * x^2, ... terms. Sometimes derivatives of Taylor polynomials work fine (%i3) taylor(x/(1+x),x,1,4); (%o3) 1/2+(x-1)/4-(x-1)^2/8+(x-1)^3/16-(x-1)^4/32 (%i4) diff(%,x); (%o4) 1/4-(x-1)/4+3*(x-1)^2/16-(x-1)^3/8 %i5) build_info(); Maxima version: 5.9.0.1cvs Maxima build date: 12:16 5/28/2004 host type: i686-pc-mingw32 lisp-implementation-type: Kyoto Common Lisp lisp-implementation-version: GCL 2.7.0 Barton ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=974734&group_id=4933 ```
 [Maxima-bugs] [ maxima-Bugs-974734 ] derivatives of Taylor polynonials From: SourceForge.net - 2006-04-09 20:43:47 ```Bugs item #974734, was opened at 2004-06-17 07:30 Message generated for change (Settings changed) made by robert_dodier You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=974734&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 - Taylor Group: None Status: Open Resolution: None Priority: 5 Submitted By: Barton Willis (willisbl) Assigned to: Nobody/Anonymous (nobody) Summary: derivatives of Taylor polynonials Initial Comment: Derivatives of Taylor polynomials sometimes are not simplified; an example (%i1) taylor(x/(1+x),x,inf,4); (%o1) 1-1/x+1/x^2-1/x^3+1/x^4 (%i2) diff(%,x); (%o2) 1/x^2-2/(x^2*x)+3/(x^2*x^2)-4/(x^2*x^3) Notice the x^2 * x, x^2 * x^2, ... terms. Sometimes derivatives of Taylor polynomials work fine (%i3) taylor(x/(1+x),x,1,4); (%o3) 1/2+(x-1)/4-(x-1)^2/8+(x-1)^3/16-(x-1)^4/32 (%i4) diff(%,x); (%o4) 1/4-(x-1)/4+3*(x-1)^2/16-(x-1)^3/8 %i5) build_info(); Maxima version: 5.9.0.1cvs Maxima build date: 12:16 5/28/2004 host type: i686-pc-mingw32 lisp-implementation-type: Kyoto Common Lisp lisp-implementation-version: GCL 2.7.0 Barton ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=104933&aid=974734&group_id=4933 ```