Mass center n points

#1 Pubblicato: 11/05/2024 11:17:48

Valery Ochkov

67 apprezzamenti in 713 post.

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Help me please - see attach
Gravity-Center-n-points.sm (331,61 KiB) scaricato 1545 volta(e).

#2 Pubblicato: 11/05/2024 15:04:22

Valery Ochkov

67 apprezzamenti in 713 post.

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Solutions for same mass of points. OK?
Gravity-Center.sm (14 KiB) scaricato 1606 volta(e).
One test

#3 Pubblicato: 11/05/2024 21:10:39

StvMath

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For comparison, the true value for your semi-annulus is given by 4*Reff/(3pi),
where Reff = ( (R-r)^2 + 3R*r )/(R+r).

With R=1 and r = 0.9 this is 0.60534722.

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Valery Ochkov 13/05/2024 01:50:00

#4 Pubblicato: 12/05/2024 08:17:01

Alvaro

1.139 apprezzamenti in 1.805 post.

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Hi. Using Martin's Momentums functions for polygons.

mass-center.sm (38,17 KiB) scaricato 1787 volta(e).

or (adenda)

mass-center more.sm (21,61 KiB) scaricato 1675 volta(e).

Best regards.
Alvaro.

2 utenti hanno apprezzato questo post

sergio 12/05/2024 23:55:00, Valery Ochkov 13/05/2024 01:50:00

#5 Pubblicato: 13/05/2024 01:52:16

Valery Ochkov

67 apprezzamenti in 713 post.

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Thanks to all!
See please pictures in my old article
Physics and computer science: the center of gravity of a black box
http://twt.mpei.ac.ru/ochkov/Center-Gravity.pdf

#6 Pubblicato: 13/05/2024 10:39:58

Alvaro

1.139 apprezzamenti in 1.805 post.

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Wrote
Thanks to all!
See please pictures in my old article
Physics and computer science: the center of gravity of a black box
http://twt.mpei.ac.ru/ochkov/Center-Gravity.pdf

Oh, I see. The intention is to use statistical functions. This vectorized version can replicate more or less the results, but SMath is very slow for large vectors.

mass-center-statics.sm (52,11 KiB) scaricato 1581 volta(e).

mass-center-statics.pdf (307,24 KiB) scaricato 906 volta(e).

Best regards.
Alvaro.

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Valery Ochkov 13/05/2024 14:32:00

#7 Pubblicato: 13/05/2024 14:33:27

Valery Ochkov

67 apprezzamenti in 713 post.

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Thank Alvaro.
But check please the Spain translation of my book.
I have sent you chapters!

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Alvaro 15/05/2024 01:33:00

#8 Pubblicato: 15/05/2024 01:33:11

Alvaro

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Hi Valery. Next week I can start with that.

Best regards.
Alvaro.

#9 Pubblicato: 27/05/2024 17:51:43

Valery Ochkov

67 apprezzamenti in 713 post.

Gruppo: User

Wrote
Hi Valery. Next week I can start with that.

Best regards.
Alvaro.

Hi Alvaro
Espero su revicion

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