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 sija #181 Posted : 07 June 2013 20:39:34(UTC) Rank: Advanced MemberGroups: Registered Joined: 19/04/2013(UTC)Posts: 46Location: Podkarpackie, PolandWas thanked: 7 time(s) in 7 post(s) Originally Posted by: uni When you are trying to calculate the last expression the maple() function takes the following expression (see mvr5\mvr5.txt): As you can see: solve({(0=, but you expected solve({(x=. That's the difference. The solve() function solves another equation.Hello,As far as well I understand, you want to say that this is not the Maple error but SMath Studio. Am I right? Please forgive my enquiries.Regards,Janusz
 uni #182 Posted : 08 June 2013 00:21:05(UTC) Rank: Advanced MemberGroups: Registered, Advanced MemberJoined: 10/11/2010(UTC)Posts: 1,504Was thanked: 1280 time(s) in 748 post(s) For now it's not so clear for me where is a problem. I doubt that there is an error. I'm thinking... Russia ☭ forever Viacheslav N. Mezentsev
 sija #183 Posted : 08 June 2013 12:50:56(UTC) Rank: Advanced MemberGroups: Registered Joined: 19/04/2013(UTC)Posts: 46Location: Podkarpackie, PolandWas thanked: 7 time(s) in 7 post(s) Uni,Thank you for the answer. I do not doubt that you will find proper solution.Best regards,Janusz 1 user thanked sija for this useful post. on 08/06/2013(UTC)
 omorr #184 Posted : 08 June 2013 13:28:55(UTC) Rank: AdministrationGroups: Registered, Advanced MemberJoined: 23/06/2009(UTC)Posts: 1,740Was thanked: 318 time(s) in 268 post(s) Hmm..., a peculiar thing hapened to me. Not sure what is it about. Things sometimes change in using maple() by recalculation worksheet.Here is a simple example I've mentioned beforeI do nothing but recalculate the worksheet subsequently. After few (do not know ho many) the results changed and get back. Sometimes "Empty stack..." happened (did not caught it here)As I am not a Maple user, I might do something wrong of course - but looks strange to me.Could someone try to reproduce this? Just open the file and press F9 until/if the results changed. Regards,RadovanEdited by user 08 June 2013 13:33:25(UTC)  | Reason: Not specifiedFile Attachment(s): odesystem.sm (10kb) downloaded 46 time(s). mvr5.txt (667kb) downloaded 30 time(s). When Sisyphus climbed to the top of a hill, they said: "Wrong boulder!"
 uni #185 Posted : 08 June 2013 13:49:29(UTC) Rank: Advanced MemberGroups: Registered, Advanced MemberJoined: 10/11/2010(UTC)Posts: 1,504Was thanked: 1280 time(s) in 748 post(s) Solutions in the vector may be reversed. I don't know why.uni attached the following image(s): Russia ☭ forever Viacheslav N. Mezentsev
 omorr #186 Posted : 08 June 2013 14:13:02(UTC) Rank: AdministrationGroups: Registered, Advanced MemberJoined: 23/06/2009(UTC)Posts: 1,740Was thanked: 318 time(s) in 268 post(s) You are right. The same is happening when you delete the first system and leave the second one. After after many subsequent F9, you will get the solutions for z(t), u(t) reversed and back.Regards,Radovan When Sisyphus climbed to the top of a hill, they said: "Wrong boulder!"
 sija #187 Posted : 12 June 2013 18:22:00(UTC) Rank: Advanced MemberGroups: Registered Joined: 19/04/2013(UTC)Posts: 46Location: Podkarpackie, PolandWas thanked: 7 time(s) in 7 post(s) Hello,Again I receive the same type of error. But this time the change the argument's separator from ";" on "," - in the application settings, does not liquidate the appearance of the error. Anybody know what's the reason of this error?Regards,Janusz
 omorr #188 Posted : 12 June 2013 21:24:00(UTC) Rank: AdministrationGroups: Registered, Advanced MemberJoined: 23/06/2009(UTC)Posts: 1,740Was thanked: 318 time(s) in 268 post(s) Edited by user 13 June 2013 10:30:53(UTC)  | Reason: Not specifiedFile Attachment(s): opet ode.sm (13kb) downloaded 55 time(s). opet ode1.sm (12kb) downloaded 51 time(s). When Sisyphus climbed to the top of a hill, they said: "Wrong boulder!"
 sija #189 Posted : 13 June 2013 16:26:07(UTC) Rank: Advanced MemberGroups: Registered Joined: 19/04/2013(UTC)Posts: 46Location: Podkarpackie, PolandWas thanked: 7 time(s) in 7 post(s) Radovan,Once again thank you for your perfect help. Unfortunately I do not have the experience with the Maple application, by now I used Derive. However SMath Studio with the MapleWrapper plugin is a splendid programme. I think I must better recognize the Maple language.The best regards,JanuszP.S.It's a matter of the parenthesis:Edited by user 13 June 2013 17:02:18(UTC)  | Reason: Not specified 1 user thanked sija for this useful post. on 13/06/2013(UTC)
 omorr #190 Posted : 13 June 2013 17:44:47(UTC) Rank: AdministrationGroups: Registered, Advanced MemberJoined: 23/06/2009(UTC)Posts: 1,740Was thanked: 318 time(s) in 268 post(s) You are welcome,By the way, I did not use Maple at all , just occasionally used Maxima.Regards,RadovanEdited by user 13 June 2013 19:39:24(UTC)  | Reason: Not specified When Sisyphus climbed to the top of a hill, they said: "Wrong boulder!"
 sija #191 Posted : 01 July 2013 20:31:58(UTC) Rank: Advanced MemberGroups: Registered Joined: 19/04/2013(UTC)Posts: 46Location: Podkarpackie, PolandWas thanked: 7 time(s) in 7 post(s) Hello,I try calculate the LambertW function as in the after-mentioned example. During calculations I receive the answer: "function is not defined". I found the name of LambertW function in the cmds file of MapleWrapper plug-in, but I'm not sure that the function is implemented in that plug-in. From the prompt of the plug-in or SMath Studio - I'm not sure, results that the function is not implemented in MapleWrapper. Please for the confirmation is that function implemented or not. Maybe I do something improperly?Regards,Janusz
 uni #192 Posted : 02 July 2013 03:54:07(UTC) Rank: Advanced MemberGroups: Registered, Advanced MemberJoined: 10/11/2010(UTC)Posts: 1,504Was thanked: 1280 time(s) in 748 post(s) The problem in the fractional representation of the numbers. Russia ☭ forever Viacheslav N. Mezentsev 1 user thanked uni for this useful post. on 02/07/2013(UTC)
 omorr #193 Posted : 02 July 2013 08:26:07(UTC) Rank: AdministrationGroups: Registered, Advanced MemberJoined: 23/06/2009(UTC)Posts: 1,740Was thanked: 318 time(s) in 268 post(s) I used the recent unofficial build by Martin Kraska. As we know, there is no Maple plugin there. I installed it of course. It did not work initially. Whatever I tried it returned "empty". Just by chance I moved the entire directory where the SMath portable resides one folder up, then everything was Ok. It seems that maple will not work for me if the directory containing the portable version is to low in hierarchy. Not quite sure about it and what was the reason. Maybe to many spaces in the directory names, maybe to long directory absolute name - do not know. Regards,Radovan When Sisyphus climbed to the top of a hill, they said: "Wrong boulder!"
 sija #194 Posted : 02 July 2013 16:27:49(UTC) Rank: Advanced MemberGroups: Registered Joined: 19/04/2013(UTC)Posts: 46Location: Podkarpackie, PolandWas thanked: 7 time(s) in 7 post(s) Originally Posted by: uni The problem in the fractional representation of the numbers.Uni,Thank you for the bright and complete answer. The best regards,Janusz
 mkraska #195 Posted : 01 August 2013 14:01:35(UTC) Rank: Advanced MemberGroups: Registered Joined: 15/04/2012(UTC)Posts: 2,008Was thanked: 1140 time(s) in 733 post(s) I am not able to reproduce the maple plot examples in 4909 any more. maple() runs as usual, just the maple plot region seems to have problems to produce the image files. The temporary files mentioned in the log file are created but empty.File Attachment(s): mvr5 (2).txt (3kb) downloaded 29 time(s). Martin Kraska Pre-configured portable distribution of SMath Studio: https://smath.com/wiki/SMath_with_Plugins.ashx 1 user thanked mkraska for this useful post. on 08/08/2013(UTC)
 mkraska #196 Posted : 01 August 2013 14:12:51(UTC) Rank: Advanced MemberGroups: Registered Joined: 15/04/2012(UTC)Posts: 2,008Was thanked: 1140 time(s) in 733 post(s) SMath crashes when I try to access the context menu of a maple region. The contents of the error message is attached. Using SMath 4909.File Attachment(s): error maplescript.txt (16kb) downloaded 29 time(s). Martin Kraska Pre-configured portable distribution of SMath Studio: https://smath.com/wiki/SMath_with_Plugins.ashx 1 user thanked mkraska for this useful post. on 08/08/2013(UTC)
 uni #197 Posted : 08 August 2013 20:47:37(UTC) Rank: Advanced MemberGroups: Registered, Advanced MemberJoined: 10/11/2010(UTC)Posts: 1,504Was thanked: 1280 time(s) in 748 post(s) Originally Posted by: mkraska I am not able to reproduce the maple plot examples in 4909 any more. maple() runs as usual, just the maple plot region seems to have problems to produce the image files. The temporary files mentioned in the log file are created but empty.Fixed.Quote:SMath crashes when I try to access the context menu of a maple region. The contents of the error message is attached. Using SMath 4909.Do not use this region for now. Russia ☭ forever Viacheslav N. Mezentsev 1 user thanked uni for this useful post. on 10/08/2013(UTC)
 mkraska #198 Posted : 10 August 2013 02:48:00(UTC) Rank: Advanced MemberGroups: Registered Joined: 15/04/2012(UTC)Posts: 2,008Was thanked: 1140 time(s) in 733 post(s) Thanks a lot, plot works now (still cannot save the script). Martin Kraska Pre-configured portable distribution of SMath Studio: https://smath.com/wiki/SMath_with_Plugins.ashx
 mkraska #199 Posted : 19 September 2013 13:02:29(UTC) Rank: Advanced MemberGroups: Registered Joined: 15/04/2012(UTC)Posts: 2,008Was thanked: 1140 time(s) in 733 post(s) There is a problem in SMath with the return format of dsolve solutions from Maple. After writing the command, you can evaluate just once. Upon recalculation (button in toolbar) control gets lost.You could either translate the = to boolean equal (this is how we plan to handle that in Maxima)or translate it into : and thereby immediately defining the solution function. This, however, would provide problems upon recalculation of the sheet. You also might just cut off the left hand side, but that perhaps won't work for systems of equations.Edited by user 19 September 2013 13:12:52(UTC)  | Reason: Not specifiedFile Attachment(s): dsolve.sm (3kb) downloaded 43 time(s).mkraska attached the following image(s): Martin Kraska Pre-configured portable distribution of SMath Studio: https://smath.com/wiki/SMath_with_Plugins.ashx
 omorr #200 Posted : 19 September 2013 15:45:59(UTC) Rank: AdministrationGroups: Registered, Advanced MemberJoined: 23/06/2009(UTC)Posts: 1,740Was thanked: 318 time(s) in 268 post(s) Just see few posts above please, for instance starting from this one . As I understood uni, there is op() function in Maple for extracting expressions f(x):maple(op(2,dsolve(diff(f(x),x)+5*x*f(x)≡x^2,f(x))))f(x)={sqrt(10)*(x*sqrt(10)+i*sqrt(π)*exp(-{5*x^2}/2)*Erf({i*x*sqrt(10)}/2))+50*exp(-{5*x^2}/2)*_C1}/50Regards,RadovanEdited by user 19 September 2013 15:47:42(UTC)  | Reason: Not specified When Sisyphus climbed to the top of a hill, they said: "Wrong boulder!" 2 users thanked omorr for this useful post. on 19/09/2013(UTC),  on 19/09/2013(UTC)
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