Error

 23 Pages«<56789>»
 Previous Topic Next Topic
 omorr #121 Posted : 25 May 2013 00:33:52(UTC) Rank: AdministrationGroups: Registered, Advanced MemberJoined: 23/06/2009(UTC)Posts: 1,740Was thanked: 318 time(s) in 268 post(s) First and second order ODE examples.I do not know how to solve them in one step like. How to put sets - {} in the command?>dsolve({D(y)(x)=x-y,y(0)=1},y(x))Could someone give some help?Regards,RadovanFile Attachment(s): ode1.sm (10kb) downloaded 59 time(s). ode2.sm (14kb) downloaded 58 time(s). When Sisyphus climbed to the top of a hill, they said: "Wrong boulder!"
 uni #122 Posted : 25 May 2013 02:54:08(UTC) Rank: Advanced MemberGroups: Registered, Advanced MemberJoined: 10/11/2010(UTC)Posts: 1,485Was thanked: 1269 time(s) in 740 post(s) Updated. The document can not be saved. I don't know why.plot([`in`[1], `in`[2], t=0..2*Pi], color=blue ); plot3d( `in`, x=-5..5, y=-5..5, scaling=constrained, style=patch, orientation=[40,50], grid=[50,50], color=gray, axes=frame, lightmodel=`light4`, projection=`normal`, shading=zgrayscale );implicitplot3d( `in`=0, x=-2..2, y=-2..2, z=-2..2, grid=[50,50,50], orientation=[20,60], axes=frame, lightmodel=`light4`, projection=`normal`, style=patchnogrid); F:=implicitplot3d( `in`[1]=0, x=-2..2, y=-2..2, z=-2..2, grid=[30,30,30], style=patchnogrid ):G:=plot3d(`in`[2], x=-2..2, y=-2..2, style=patch, color=white):display({F,G}, orientation=[20,60], axes=box, lightmodel=`light2`, projection=`normal`, labels=["X","Y","Z"], scaling=constrained, tickmarks=[4,4,4] );f(x;y;z)a^2*(x^2+y^2+z^2))^{-2}+(b^8*(x^8+y^8+z^8))^4-2F:=implicitplot3d( `in`=0, x=-2.1..2.1, y=-2.1..2.1, z=-2.1..2.1, grid=[50,50,50], style=patchnogrid ):display({F}, orientation=[35,55], axes=box, lightmodel=`light4`, projection=`normal`, labels=["X","Y","Z"], scaling=constrained, tickmarks=[4,4,4] );Edited by user 25 May 2013 08:22:58(UTC)  | Reason: Not specified Russia ☭ forever Viacheslav N. Mezentsev
 uni #123 Posted : 25 May 2013 10:50:17(UTC) Rank: Advanced MemberGroups: Registered, Advanced MemberJoined: 10/11/2010(UTC)Posts: 1,485Was thanked: 1269 time(s) in 740 post(s) Originally Posted by: omorr I do not know how to solve them in one step like. How to put sets - {} in the command?>dsolve({D(y)(x)=x-y,y(0)=1},y(x))Could someone give some help? Edited by user 25 May 2013 11:53:03(UTC)  | Reason: Not specified Russia ☭ forever Viacheslav N. Mezentsev
 omorr #124 Posted : 25 May 2013 12:52:17(UTC) Rank: AdministrationGroups: Registered, Advanced MemberJoined: 23/06/2009(UTC)Posts: 1,740Was thanked: 318 time(s) in 268 post(s) Aha,...convert() was the magic word. Thank you Strange, but this one was the only one successfulMy other attempts in making plots and reproducing your pictures, issued an error about missing gif file in tmp folder. See the picture please The problem of not saving pictures and SMat crash still remained.Regards,Radovan When Sisyphus climbed to the top of a hill, they said: "Wrong boulder!"
 uni #125 Posted : 25 May 2013 13:08:25(UTC) Rank: Advanced MemberGroups: Registered, Advanced MemberJoined: 10/11/2010(UTC)Posts: 1,485Was thanked: 1269 time(s) in 740 post(s) Show me the log file: mvr5.txt. Russia ☭ forever Viacheslav N. Mezentsev
 omorr #126 Posted : 25 May 2013 13:19:05(UTC) Rank: AdministrationGroups: Registered, Advanced MemberJoined: 23/06/2009(UTC)Posts: 1,740Was thanked: 318 time(s) in 268 post(s) Originally Posted by: uni Show me the log file: mvr5.txt.Here it is. If you want me something in particular to try, just let me know.Regards,RadovanFile Attachment(s): mvr5.txt (193kb) downloaded 42 time(s). When Sisyphus climbed to the top of a hill, they said: "Wrong boulder!"
 omorr #127 Posted : 25 May 2013 13:40:59(UTC) Rank: AdministrationGroups: Registered, Advanced MemberJoined: 23/06/2009(UTC)Posts: 1,740Was thanked: 318 time(s) in 268 post(s) This one is after deleting mvr5.txt and trying to make a parametric 3dplotEdited by user 25 May 2013 13:42:45(UTC)  | Reason: Not specifiedFile Attachment(s): mvr5.txt (3kb) downloaded 36 time(s).omorr attached the following image(s): When Sisyphus climbed to the top of a hill, they said: "Wrong boulder!"
 uni #128 Posted : 25 May 2013 13:59:09(UTC) Rank: Advanced MemberGroups: Registered, Advanced MemberJoined: 10/11/2010(UTC)Posts: 1,485Was thanked: 1269 time(s) in 740 post(s) Originally Posted by: omorr Originally Posted by: uni Show me the log file: mvr5.txt.Here it is. If you want me something in particular to try, just let me know.Regards,RadovanRadovan, you have to change the maple-commands for each graph. In your example these commands are set incorrectly. I specifically show the commands. They need to be inserted into the settings form, as showed above.1) Try this:a := plot( `in`, t=0..20, x=-1.5..1.5, scaling=unconstrained, style=line, color=blue, axes=box, labels=["t","x(t) "]):b := coordplot(rectangular, [0..20, -1.5..1.5], linestyle=[7,7], color=[gray,gray]):display([a,b]);2) projection=`normal must be projection=`normal`Edited by user 25 May 2013 14:11:28(UTC)  | Reason: Not specified Russia ☭ forever Viacheslav N. Mezentsev
 omorr #129 Posted : 25 May 2013 15:04:10(UTC) Rank: AdministrationGroups: Registered, Advanced MemberJoined: 23/06/2009(UTC)Posts: 1,740Was thanked: 318 time(s) in 268 post(s) I tried your suggestion (just copy/paste) and calculation take quite long (did not wait for it to finish). Just used the simple one, and it worked (the first picture). It is good enough for me .Tried one of your examples, and typed carefully as much as I could. I did not see any mistake - but the plot did not appear (the second picture) Regards,RadovanEdited by user 25 May 2013 15:07:03(UTC)  | Reason: Not specifiedFile Attachment(s): mvr5.txt (266kb) downloaded 31 time(s). When Sisyphus climbed to the top of a hill, they said: "Wrong boulder!"
 uni #130 Posted : 25 May 2013 15:14:41(UTC) Rank: Advanced MemberGroups: Registered, Advanced MemberJoined: 10/11/2010(UTC)Posts: 1,485Was thanked: 1269 time(s) in 740 post(s) Try to add with(plots): to with.inc:Quote:with(linalg):with(inttrans):with(plots): Russia ☭ forever Viacheslav N. Mezentsev
 omorr #131 Posted : 25 May 2013 15:26:25(UTC) Rank: AdministrationGroups: Registered, Advanced MemberJoined: 23/06/2009(UTC)Posts: 1,740Was thanked: 318 time(s) in 268 post(s) Originally Posted by: uni Try to add with(plots): to with.inc:Quote:with(linalg):with(inttrans):with(plots):It worked . What was the catch?omorr attached the following image(s): When Sisyphus climbed to the top of a hill, they said: "Wrong boulder!"
 omorr #132 Posted : 25 May 2013 19:26:54(UTC) Rank: AdministrationGroups: Registered, Advanced MemberJoined: 23/06/2009(UTC)Posts: 1,740Was thanked: 318 time(s) in 268 post(s) Nice File Attachment(s): ode2-boundary.sm (19kb) downloaded 69 time(s). When Sisyphus climbed to the top of a hill, they said: "Wrong boulder!" 1 user thanked omorr for this useful post. on 26/05/2013(UTC)
 uni #133 Posted : 26 May 2013 02:40:31(UTC) Rank: Advanced MemberGroups: Registered, Advanced MemberJoined: 10/11/2010(UTC)Posts: 1,485Was thanked: 1269 time(s) in 740 post(s) MaplePlot updated. Small imprоvements. Russia ☭ forever Viacheslav N. Mezentsev 1 user thanked uni for this useful post. on 26/05/2013(UTC)
 omorr #134 Posted : 26 May 2013 09:59:31(UTC) Rank: AdministrationGroups: Registered, Advanced MemberJoined: 23/06/2009(UTC)Posts: 1,740Was thanked: 318 time(s) in 268 post(s) Just to confirm. The EMPTY PLOT is now working fine. No crash of SMath at the plot inserting When Sisyphus climbed to the top of a hill, they said: "Wrong boulder!"
 sija #135 Posted : 26 May 2013 11:20:20(UTC) Rank: Advanced MemberGroups: Registered Joined: 19/04/2013(UTC)Posts: 46Location: Podkarpackie, PolandWas thanked: 7 time(s) in 7 post(s) Hello,Heartily please for the prompt, how to check in Maple that two expressions are to themselves equal. For example whether the expression under variable a is such alone as the expression under variable b?Regards,Janusz
 omorr #136 Posted : 26 May 2013 13:26:32(UTC) Rank: AdministrationGroups: Registered, Advanced MemberJoined: 23/06/2009(UTC)Posts: 1,740Was thanked: 318 time(s) in 268 post(s) Originally Posted by: sija Heartily please for the prompt, how to check in Maple that two expressions are to themselves equal. For example whether the expression under variable a is such alone as the expression under variable b?I do not use maple to much (it is interesting and a fun using it in SMath ) , and someone else might give you a better solution - but this should worke1a^2-1)*1/sqrt(a)e2b-1)*(b+1)/sqrt(maple(simplify(subs(a≡b,e1)-e2))=0Regards,Radoavn When Sisyphus climbed to the top of a hill, they said: "Wrong boulder!"
 sija #137 Posted : 26 May 2013 14:32:54(UTC) Rank: Advanced MemberGroups: Registered Joined: 19/04/2013(UTC)Posts: 46Location: Podkarpackie, PolandWas thanked: 7 time(s) in 7 post(s) Hi Radoavn,Thank you, interesting solution, will try out it.Regards,Janusz
 uni #138 Posted : 27 May 2013 08:10:51(UTC) Rank: Advanced MemberGroups: Registered, Advanced MemberJoined: 10/11/2010(UTC)Posts: 1,485Was thanked: 1269 time(s) in 740 post(s) Updated. Still can't save region. File Attachment(s): MaplePlot. Example 8.sm (5kb) downloaded 75 time(s). Russia ☭ forever Viacheslav N. Mezentsev 1 user thanked uni for this useful post. on 27/05/2013(UTC)
 mkraska #139 Posted : 27 May 2013 09:22:01(UTC) Rank: Advanced MemberGroups: Registered Joined: 15/04/2012(UTC)Posts: 1,973Was thanked: 1117 time(s) in 715 post(s) Thanks for the update.I have still trouble with the basics. Example 2 does not work.Here is what the log file says: There are empty tmp files in the tmp dir:tmp59BF.tmptmp5A0F.tmp Martin Kraska Pre-configured portable distribution of SMath Studio: https://smath.com/wiki/SMath_with_Plugins.ashx
 uni #140 Posted : 27 May 2013 10:07:10(UTC) Rank: Advanced MemberGroups: Registered, Advanced MemberJoined: 10/11/2010(UTC)Posts: 1,485Was thanked: 1269 time(s) in 740 post(s) In your example: `in`x^2+y^2+z^2)-1but expected:sys(el(`in`;1);el(`in`;2);2;1):sys((x^2+y^2+z^2)-1;0;2;1)we get: `in`[1]="" , `in`[2]="" - empty values (because it is not a system) and `in`=(x^2+y^2+z^2)-1 (but is missing in script)Must be: Quote:There are empty tmp files in the tmp dir:tmp59BF.tmptmp5A0F.tmpThis is normal.Edited by user 27 May 2013 10:11:12(UTC)  | Reason: Not specified Russia ☭ forever Viacheslav N. Mezentsev 1 user thanked uni for this useful post. on 27/05/2013(UTC)
 Users browsing this topic
 23 Pages«<56789>»
Forum Jump
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.