Welcome Guest! To enable all features please Login or Register.

Notification

Icon
Error

Options
Go to last post Go to first unread
Offline Razonar  
#1 Posted : 19 February 2018 06:34:45(UTC)
Razonar


Rank: Advanced Member

Groups: Registered
Joined: 28/08/2014(UTC)
Posts: 357
Uruguay

Was thanked: 162 time(s) in 101 post(s)
Hi. I'm trying to implement this implicit plot. But can't "cut" the lines in the xy plot. Also, any help about speeding the function is welcome.

Best regards.

Alvaro.

iplot.jpg

iplotq.sm (41kb) downloaded 39 time(s).
Offline Ber7  
#2 Posted : 19 February 2018 10:35:55(UTC)
Ber7


Rank: Advanced Member

Groups: Registered
Joined: 15/07/2010(UTC)
Posts: 326
Man
Israel
Location: Beer-Sheva

Was thanked: 425 time(s) in 230 post(s)
Try the method of Draghilev

DragilevMet.sm (25kb) downloaded 30 time(s).

Edited by user 21 October 2018 20:28:06(UTC)  | Reason: Not specified

Offline Razonar  
#3 Posted : 19 February 2018 12:07:23(UTC)
Razonar


Rank: Advanced Member

Groups: Registered
Joined: 28/08/2014(UTC)
Posts: 357
Uruguay

Was thanked: 162 time(s) in 101 post(s)
Hi Ber. Thanks for the implementation. But it use maple and is semisymbolic, I want just some that can works in the cloud, like: https://en.smath.info/cloud/sheet/s23Pa6bZUn

Best regards.

Alvaro.
Offline Ber7  
#4 Posted : 19 February 2018 12:38:09(UTC)
Ber7


Rank: Advanced Member

Groups: Registered
Joined: 15/07/2010(UTC)
Posts: 326
Man
Israel
Location: Beer-Sheva

Was thanked: 425 time(s) in 230 post(s)
Option without Maple

DragilevMet1.sm (22kb) downloaded 32 time(s).
thanks 1 user thanked Ber7 for this useful post.
on 19/02/2018(UTC)
Offline Razonar  
#5 Posted : 19 February 2018 13:13:37(UTC)
Razonar


Rank: Advanced Member

Groups: Registered
Joined: 28/08/2014(UTC)
Posts: 357
Uruguay

Was thanked: 162 time(s) in 101 post(s)
Perfect! Thanks.

Best regards.

Alvaro
Offline CBG  
#6 Posted : 20 February 2018 01:22:41(UTC)
CBG


Rank: Advanced Member

Groups: Registered
Joined: 14/10/2015(UTC)
Posts: 206

Was thanked: 42 time(s) in 30 post(s)
Not graphic
It does not show any error

Dragilev_not_plot.png


Best Regards

Carlos
Offline Razonar  
#7 Posted : 20 February 2018 03:28:12(UTC)
Razonar


Rank: Advanced Member

Groups: Registered
Joined: 28/08/2014(UTC)
Posts: 357
Uruguay

Was thanked: 162 time(s) in 101 post(s)
Hi Carlos
For see the error message type B1=


Best regards

Alvaro
Offline CBG  
#8 Posted : 20 February 2018 05:44:57(UTC)
CBG


Rank: Advanced Member

Groups: Registered
Joined: 14/10/2015(UTC)
Posts: 206

Was thanked: 42 time(s) in 30 post(s)
Hello Alvaro:
Thank you very much.
The error in the graph is that x is not defined.

What causes this error?
In the graphs published by you it is seen that graphs correctly.

Dragilev_Not_Plot_r1.png


Best Regards

Carlos
Offline Razonar  
#9 Posted : 22 February 2018 09:11:16(UTC)
Razonar


Rank: Advanced Member

Groups: Registered
Joined: 28/08/2014(UTC)
Posts: 357
Uruguay

Was thanked: 162 time(s) in 101 post(s)
Hola Carlos. Try the following, a short version, just for n=2.
Best regards.

Alvaro.

DragilevMet2.sm (13kb) downloaded 27 time(s).
thanks 1 user thanked Razonar for this useful post.
on 22/02/2018(UTC)
Offline Ber7  
#10 Posted : 22 February 2018 10:21:24(UTC)
Ber7


Rank: Advanced Member

Groups: Registered
Joined: 15/07/2010(UTC)
Posts: 326
Man
Israel
Location: Beer-Sheva

Was thanked: 425 time(s) in 230 post(s)
Try also the old version of the Draghilev method
DragilevMet3.sm (24kb) downloaded 24 time(s).
Razonar,thanks for the short code for n = 2

Edited by user 21 October 2018 20:29:28(UTC)  | Reason: Not specified

Offline Jean Giraud  
#11 Posted : 22 February 2018 20:45:42(UTC)
Jean Giraud


Rank: Advanced Member

Groups: Registered
Joined: 04/07/2015(UTC)
Posts: 3,657
Canada

Was thanked: 682 time(s) in 532 post(s)
Carlos, Alvaro,

From previous use of Dragilev method, I observed great difficulties
to appropriately start/stop rkfixed. Your example above works fine as is.
For more points with less tentatives in specific cases, the easiest way
is to pass it to the closed shape Hermite suite.
I should revisit some of those examples.

The Esplina AI2000 interpolates as well for closed shapes.

Spline Esplina [AI2000].sm (22kb) downloaded 16 time(s).

Spline Esplina [Hermite].sm (36kb) downloaded 19 time(s).
thanks 1 user thanked Jean Giraud for this useful post.
on 22/02/2018(UTC)
Offline CBG  
#12 Posted : 22 February 2018 21:55:44(UTC)
CBG


Rank: Advanced Member

Groups: Registered
Joined: 14/10/2015(UTC)
Posts: 206

Was thanked: 42 time(s) in 30 post(s)
By--> Razonar
Quote:
Hola Carlos. Try the following, a short version, just for n=2


By--> Ber7
Quote:
Try also the old version of the Dragilev method
DragilevMet3.sm (24kCool downloaded 10 time(s)


Hola Alvaro, Hello Ber7,

Thanks for your reply, but the DragilevMet2 and 3 files do not work.

The file of Ber 7 does not show any error, but by requiring the value
of B1 and B2, it says that "x" is not defined.


Attached drawing of the errors.


Hello Jean, your files worked perfectly.


DragilevMet2_3_Not_Work.png


Best Regards

Carlos
Offline Razonar  
#13 Posted : 23 February 2018 09:19:44(UTC)
Razonar


Rank: Advanced Member

Groups: Registered
Joined: 28/08/2014(UTC)
Posts: 357
Uruguay

Was thanked: 162 time(s) in 101 post(s)
Hola Carlos.

It's because a problem with rkfixed routine in your environment. Try to download this, or use it in the cloud: DM_RK

Best regards.

Alvaro.

Edited by user 25 February 2018 00:49:18(UTC)  | Reason: Not specified

Offline CBG  
#14 Posted : 23 February 2018 21:56:57(UTC)
CBG


Rank: Advanced Member

Groups: Registered
Joined: 14/10/2015(UTC)
Posts: 206

Was thanked: 42 time(s) in 30 post(s)
Hola Alvaro:
Gracias por tu respuesta.

Thanks for your answer, but I found the fault.
The interference is caused by the Maxima Plugin,
by disabling it, the file works correctly.


DragilevMet2_3_Works_wt_Maxima.png



Best regards


Carlos
Offline CBG  
#15 Posted : 24 February 2018 05:30:39(UTC)
CBG


Rank: Advanced Member

Groups: Registered
Joined: 14/10/2015(UTC)
Posts: 206

Was thanked: 42 time(s) in 30 post(s)
Hola Alvaro

Here too, the problem is caused by the decimal separator "Point",

Changing in options, the decimal separator from "Point" to "Comma", (from "." To ","Wink
resolves the problem of graphing


Best regards


Carlos
thanks 1 user thanked CBG for this useful post.
on 25/02/2018(UTC)
Users browsing this topic
Similar Topics
2d Implicit Plot (Samples)
by Jean Giraud 19/05/2016 04:24:59(UTC)
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.