Implicit Plot

Implicit Plot - Mensajes

#1 Publicado: 19/2/2018 0:34:45
Alvaro

Alvaro

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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 (40,7 KiB) descargado 1820 vez(es).
#2 Publicado: 19/2/2018 4:35:55
Fridel Selitsky

Fridel Selitsky

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Try the method of Draghilev

DragilevMet.sm (24,09 KiB) descargado 1260 vez(es).
#3 Publicado: 19/2/2018 6:07:23
Alvaro

Alvaro

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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.
#4 Publicado: 19/2/2018 6:38:09
Fridel Selitsky

Fridel Selitsky

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Option without Maple

DragilevMet1.sm (21,62 KiB) descargado 1296 vez(es).
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frapuano 19/2/2018 7:15:00
#5 Publicado: 19/2/2018 7:13:37
Alvaro

Alvaro

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Perfect! Thanks.

Best regards.

Alvaro
#6 Publicado: 19/2/2018 19:22:41
CBG

CBG

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Not graphic
It does not show any error

Dragilev_not_plot.png


Best Regards

Carlos
#7 Publicado: 19/2/2018 21:28:12
Alvaro

Alvaro

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Hi Carlos
For see the error message type B1=


Best regards

Alvaro
#8 Publicado: 19/2/2018 23:44:57
CBG

CBG

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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
#9 Publicado: 22/2/2018 3:11:16
Alvaro

Alvaro

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Hola Carlos. Try the following, a short version, just for n=2.
Best regards.

Alvaro.

DragilevMet2.sm (12,74 KiB) descargado 1251 vez(es).
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Fridel Selitsky 22/2/2018 4:44:00
#10 Publicado: 22/2/2018 4:21:24
Fridel Selitsky

Fridel Selitsky

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Try also the old version of the Draghilev method
DragilevMet3.sm (23,18 KiB) descargado 1242 vez(es).
Razonar,thanks for the short code for n = 2
#11 Publicado: 22/2/2018 14:45:42
Jean Giraud

Jean Giraud

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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 (21,79 KiB) descargado 1049 vez(es).

Spline Esplina [Hermite].sm (35,44 KiB) descargado 1041 vez(es).
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Fridel Selitsky 22/2/2018 15:50:00
#12 Publicado: 22/2/2018 15:55:44
CBG

CBG

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By--> Razonar
Citar

Hola Carlos. Try the following, a short version, just for n=2



By--> Ber7
Citar

Try also the old version of the Dragilev method
DragilevMet3.sm (24kb) 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
#13 Publicado: 23/2/2018 3:19:44
Alvaro

Alvaro

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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.
#14 Publicado: 23/2/2018 15:56:57
CBG

CBG

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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
#15 Publicado: 23/2/2018 23:30:39
CBG

CBG

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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 ",")
resolves the problem of graphing


Best regards


Carlos
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Alvaro 24/2/2018 18:48:00
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