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Offline sija  
#181 Posted : 07 June 2013 20:39:34(UTC)
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Originally Posted by: uni Go to Quoted Post
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
Offline uni  
#182 Posted : 08 June 2013 00:21:05(UTC)
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For now it's not so clear for me where is a problem. I doubt that there is an error. I'm thinking...
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Offline sija  
#183 Posted : 08 June 2013 12:50:56(UTC)
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Uni,

Thank you for the answer. I do not doubt that you will find proper solution.

Best regards,
Janusz
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Offline omorr  
#184 Posted : 08 June 2013 13:28:55(UTC)
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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 before



I 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,
Radovan

Edited by user 08 June 2013 13:33:25(UTC)  | Reason: Not specified

File Attachment(s):
odesystem.sm (10kb) downloaded 43 time(s).
mvr5.txt (667kb) downloaded 29 time(s).
When Sisyphus climbed to the top of a hill, they said: "Wrong boulder!"
Offline uni  
#185 Posted : 08 June 2013 13:49:29(UTC)
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Solutions in the vector may be reversed. I don't know why.



uni attached the following image(s):
MapleWrapper_screen20.png
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Offline omorr  
#186 Posted : 08 June 2013 14:13:02(UTC)
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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!"
Offline sija  
#187 Posted : 12 June 2013 18:22:00(UTC)
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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



Offline omorr  
#188 Posted : 12 June 2013 21:24:00(UTC)
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Edited by user 13 June 2013 10:30:53(UTC)  | Reason: Not specified

File Attachment(s):
opet ode.sm (13kb) downloaded 50 time(s).
opet ode1.sm (12kb) downloaded 47 time(s).
When Sisyphus climbed to the top of a hill, they said: "Wrong boulder!"
Offline sija  
#189 Posted : 13 June 2013 16:26:07(UTC)
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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,
Janusz

P.S.

It's a matter of the parenthesis:

Edited by user 13 June 2013 17:02:18(UTC)  | Reason: Not specified

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Offline omorr  
#190 Posted : 13 June 2013 17:44:47(UTC)
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You are welcome,

By the way, I did not use Maple at all Good , just occasionally used Maxima.

Regards,
Radovan

Edited 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!"
Offline sija  
#191 Posted : 01 July 2013 20:31:58(UTC)
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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
Offline uni  
#192 Posted : 02 July 2013 03:54:07(UTC)
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The problem in the fractional representation of the numbers.

Russia ☭ forever
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Offline omorr  
#193 Posted : 02 July 2013 08:26:07(UTC)
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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!"
Offline sija  
#194 Posted : 02 July 2013 16:27:49(UTC)
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Originally Posted by: uni Go to Quoted Post
The problem in the fractional representation of the numbers.


Uni,

Thank you for the bright and complete answer.Thank you

The best regards
,

Janusz
Offline mkraska  
#195 Posted : 01 August 2013 14:01:35(UTC)
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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 28 time(s).
Martin Kraska

Pre-configured portable distribution of SMath Studio: https://en.smath.info/wi...th%20with%20Plugins.ashx
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Offline mkraska  
#196 Posted : 01 August 2013 14:12:51(UTC)
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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 28 time(s).
Martin Kraska

Pre-configured portable distribution of SMath Studio: https://en.smath.info/wi...th%20with%20Plugins.ashx
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Offline uni  
#197 Posted : 08 August 2013 20:47:37(UTC)
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Originally Posted by: mkraska Go to Quoted Post
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
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Offline mkraska  
#198 Posted : 10 August 2013 02:48:00(UTC)
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Thanks a lot, plot works now (still cannot save the script).
Martin Kraska

Pre-configured portable distribution of SMath Studio: https://en.smath.info/wi...th%20with%20Plugins.ashx
Offline mkraska  
#199 Posted : 19 September 2013 13:02:29(UTC)
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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 specified

File Attachment(s):
dsolve.sm (3kb) downloaded 41 time(s).
mkraska attached the following image(s):
dsolve1.PNG
dsolve2.PNG
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Offline omorr  
#200 Posted : 19 September 2013 15:45:59(UTC)
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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}/50

Regards,
Radovan

Edited 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!"
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