AlgLib 3.1x - SMath

#41 Posted: 12/24/2018 7:47:08 AM

Вячеслав Мезенцев

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Updated.

alglib.ode.kinetic1.sm (7.78 KiB) downloaded 1585 time(s).
alglib.ode.kinetic2.sm (10.35 KiB) downloaded 1684 time(s).
alglib.ode.kinetic3.sm (10.04 KiB) downloaded 1698 time(s).
alglib.ode.test1.sm (10.46 KiB) downloaded 1667 time(s).
alglib.ode.test2.sm (10.63 KiB) downloaded 1631 time(s).
alglib.ode.Amplitude detector.sm (19.77 KiB) downloaded 1678 time(s).

alglib.ode.kinetic1.pdf (75.29 KiB) downloaded 936 time(s).
alglib.ode.kinetic2.pdf (89.97 KiB) downloaded 887 time(s).
alglib.ode.kinetic3.pdf (83.16 KiB) downloaded 862 time(s).
alglib.ode.test1.pdf (85.24 KiB) downloaded 865 time(s).
alglib.ode.test2.pdf (89.96 KiB) downloaded 890 time(s).
alglib.ode.Amplitude detector.pdf (147.84 KiB) downloaded 915 time(s).

Russia ☭ forever, Viacheslav N. Mezentsev

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bdrunagle 12/24/2018 8:15:00 AM, NDTM Amarasekera 12/24/2018 9:44:00 AM, sergio 12/24/2018 11:04:00 AM, frapuano 12/24/2018 2:22:00 PM, Radovan Omorjan 12/24/2018 2:52:00 PM

#42 Posted: 12/28/2018 2:02:54 PM

Вячеслав Мезенцев

1,554 likes in 1,864 posts.

Group: Moderator

Updated. Refactored.

Russia ☭ forever, Viacheslav N. Mezentsev

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sergio 12/28/2018 4:14:00 PM, frapuano 12/28/2018 7:22:00 PM, NDTM Amarasekera 12/28/2018 10:53:00 PM

#43 Posted: 1/19/2019 4:31:14 PM

Вячеслав Мезенцев

1,554 likes in 1,864 posts.

Group: Moderator

Updated. al_nleqsolve(2), al_nleqsolve(3), al_nleqsolve(4) added.

File not found. File not found. File not found.

Russia ☭ forever, Viacheslav N. Mezentsev

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sergio 1/19/2019 5:38:00 PM, frapuano 1/19/2019 6:11:00 PM, NDTM Amarasekera 1/19/2019 11:45:00 PM

#44 Posted: 1/27/2019 5:23:49 AM

Вячеслав Мезенцев

1,554 likes in 1,864 posts.

Group: Moderator

With numeric optimization (for all functions) it works much faster.

Fourier series coefficients.sm (17.54 KiB) downloaded 1550 time(s).
Fourier series coefficients.pdf (138.41 KiB) downloaded 896 time(s).

Russia ☭ forever, Viacheslav N. Mezentsev

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Radovan Omorjan 1/27/2019 8:19:00 AM, Davide Carpi 1/27/2019 7:53:00 AM, frapuano 1/27/2019 8:21:00 AM, NDTM Amarasekera 1/27/2019 9:47:00 AM

#45 Posted: 1/27/2019 10:59:21 AM

Вячеслав Мезенцев

1,554 likes in 1,864 posts.

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Example 2.

Fourier series coefficients.sm (28.46 KiB) downloaded 1682 time(s).
Fourier series coefficients.pdf (170.26 KiB) downloaded 1030 time(s).

Russia ☭ forever, Viacheslav N. Mezentsev

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sergio 1/27/2019 1:29:00 PM

#46 Posted: 1/27/2019 12:48:06 PM

Jean Giraud

983 likes in 6,866 posts.

Group: User

Otherwise w/o Algib and more Engineering applications

Fourier Budapest39 Smoothing.sm (47.67 KiB) downloaded 1609 time(s).

#47 Posted: 1/27/2019 1:06:32 PM

Jean Giraud

983 likes in 6,866 posts.

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Fourier-Fejer-Lanczos interesting too.
IrfanView "ResizeResample" zoom up/down in two options
Fourier or Lanczos the best.

Fourier Fejer Lanczos.sm (9.11 KiB) downloaded 1515 time(s).

#48 Posted: 2/18/2019 5:42:17 AM

Fridel Selitsky

520 likes in 451 posts.

Group: User

Parameterization of implicit functions with al_nleqsolve

Parametrisation.sm (29.88 KiB) downloaded 1593 time(s).

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NDTM Amarasekera 2/18/2019 11:46:00 AM, frapuano 2/18/2019 9:08:00 AM, Alvaro 2/18/2019 2:00:00 PM, Вячеслав Мезенцев 2/18/2019 5:50:00 PM

#49 Posted: 2/18/2019 1:59:33 PM

Alvaro

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Hi Ber. Nice technique, easy to implement. You can also make that as a function, and monocolor too.

Parametrisation.sm (25.37 KiB) downloaded 1531 time(s).

Another option could be use y0 as vector, and solve for each element in y0, obtaining res, res1, ..., resn

Best regards.
Alvaro.

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Fridel Selitsky 2/18/2019 2:44:00 PM

#50 Posted: 2/18/2019 11:53:03 PM

Jean Giraud

983 likes in 6,866 posts.

Group: User

1. SS 6179 does not complain
2. Takes ~ 1 hr to terminate the first function
3. NO plot result [NO complain but NO plot ?]
4. Would be interesting checking if the attached SS 6179
runs in your actual AlgLib 3.1x. If NOT => would be a dramatic bug.
It would indicate that all maths based al_nleqsolve would be scrap.

Contour SOLVE [Electron Solve algo Express].sm (20.66 KiB) downloaded 1335 time(s).

#51 Posted: 11/22/2020 4:47:54 AM

Вячеслав Мезенцев

1,554 likes in 1,864 posts.

Group: Moderator

Updated.

Changes:

- source code updated to ALGLIB 3.16.0;
- refactored.

Russia ☭ forever, Viacheslav N. Mezentsev

#52 Posted: 2/22/2021 4:06:56 PM

Вячеслав Мезенцев

1,554 likes in 1,864 posts.

Group: Moderator

Updated.

Changes:

- source code updated to ALGLIB 3.17.0;

Russia ☭ forever, Viacheslav N. Mezentsev

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sergio 11/17/2021 12:20:00 PM

#53 Posted: 11/17/2021 11:42:24 AM

Вячеслав Мезенцев

1,554 likes in 1,864 posts.

Group: Moderator

Plugin updated.

Changes:

- source code updated to ALGLIB 3.18.0;
- al_polyroots() function added.

Russia ☭ forever, Viacheslav N. Mezentsev

4 users liked this post

Fridel Selitsky 11/17/2021 12:18:00 PM, sergio 11/17/2021 12:20:00 PM, Alvaro 11/17/2021 1:00:00 PM, NDTM Amarasekera 11/17/2021 4:44:00 PM

#54 Posted: 12/8/2021 2:43:14 AM

Вячеслав Мезенцев

1,554 likes in 1,864 posts.

Group: Moderator

Plugin updated.

Changes:

- al_lspline(), al_pspline() fucntions added;
- some functions now have a reduced number of parameters (input vector lengths are no longer required);
- refactored.

Russia ☭ forever, Viacheslav N. Mezentsev

#55 Posted: 12/10/2021 1:36:46 AM

Вячеслав Мезенцев

1,554 likes in 1,864 posts.

Group: Moderator

Plugin updated.

Changes:

- added support for ODE systems in mathematical form;
- refactored.

Russia ☭ forever, Viacheslav N. Mezentsev

1 users liked this post

sergio 12/10/2021 5:27:00 AM

#56 Posted: 12/20/2021 4:18:35 PM

Вячеслав Мезенцев

1,554 likes in 1,864 posts.

Group: Moderator

Plugin updated.

Changes:

- solution restructured;
- converting the task for the ODE solver to the numerical form is now performed through the Mathcad Toolbox plugin (to avoid code duplication), so it must be installed;
- refactored.

Solvers that support mathematical notation now reuse code from the Mathcad Toolbox plugin. Now there is no need to recompile every such plugin.

Russia ☭ forever, Viacheslav N. Mezentsev

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