AlgLib 3.1x - SMath

#41 Posted: 2018/12/24 07:47:08

Вячеслав Мезенцев

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Updated.

alglib.ode.kinetic1.sm (7.78 KiB) downloaded 1015 time(s).
alglib.ode.kinetic2.sm (10.35 KiB) downloaded 1103 time(s).
alglib.ode.kinetic3.sm (10.04 KiB) downloaded 1037 time(s).
alglib.ode.test1.sm (10.46 KiB) downloaded 1049 time(s).
alglib.ode.test2.sm (10.63 KiB) downloaded 1038 time(s).
alglib.ode.Amplitude detector.sm (19.77 KiB) downloaded 1068 time(s).

alglib.ode.kinetic1.pdf (75.29 KiB) downloaded 578 time(s).
alglib.ode.kinetic2.pdf (89.97 KiB) downloaded 556 time(s).
alglib.ode.kinetic3.pdf (83.16 KiB) downloaded 537 time(s).
alglib.ode.test1.pdf (85.24 KiB) downloaded 548 time(s).
alglib.ode.test2.pdf (89.96 KiB) downloaded 573 time(s).
alglib.ode.Amplitude detector.pdf (147.84 KiB) downloaded 586 time(s).

Russia ☭ forever, Viacheslav N. Mezentsev

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bdrunagle 2018/12/24 08:15:00, NDTM Amarasekera 2018/12/24 09:44:00, sergio 2018/12/24 11:04:00, frapuano 2018/12/24 14:22:00, Radovan Omorjan 2018/12/24 14:52:00

#42 Posted: 2018/12/28 14:02:54

Вячеслав Мезенцев

1,532 likes in 1,838 posts.

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Updated. Refactored.

Russia ☭ forever, Viacheslav N. Mezentsev

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sergio 2018/12/28 16:14:00, frapuano 2018/12/28 19:22:00, NDTM Amarasekera 2018/12/28 22:53:00

#43 Posted: 2019/1/19 16:31:14

Вячеслав Мезенцев

1,532 likes in 1,838 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 2019/1/19 17:38:00, frapuano 2019/1/19 18:11:00, NDTM Amarasekera 2019/1/19 23:45:00

#44 Posted: 2019/1/27 05:23:49

Вячеслав Мезенцев

1,532 likes in 1,838 posts.

Group: Moderator

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

Fourier series coefficients.sm (17.54 KiB) downloaded 978 time(s).
Fourier series coefficients.pdf (138.41 KiB) downloaded 558 time(s).

Russia ☭ forever, Viacheslav N. Mezentsev

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Radovan Omorjan 2019/1/27 08:19:00, Davide Carpi 2019/1/27 07:53:00, frapuano 2019/1/27 08:21:00, NDTM Amarasekera 2019/1/27 09:47:00

#45 Posted: 2019/1/27 10:59:21

Вячеслав Мезенцев

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Example 2.

Fourier series coefficients.sm (28.46 KiB) downloaded 1079 time(s).
Fourier series coefficients.pdf (170.26 KiB) downloaded 625 time(s).

Russia ☭ forever, Viacheslav N. Mezentsev

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sergio 2019/1/27 13:29:00

#46 Posted: 2019/1/27 12:48:06

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 1033 time(s).

#47 Posted: 2019/1/27 13:06:32

Jean Giraud

983 likes in 6,866 posts.

Group: User

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 995 time(s).

#48 Posted: 2019/2/18 05:42:17

Fridel Selitsky

520 likes in 451 posts.

Group: User

Parameterization of implicit functions with al_nleqsolve

Parametrisation.sm (29.88 KiB) downloaded 1023 time(s).

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NDTM Amarasekera 2019/2/18 11:46:00, frapuano 2019/2/18 09:08:00, Alvaro 2019/2/18 14:00:00, Вячеслав Мезенцев 2019/2/18 17:50:00

#49 Posted: 2019/2/18 13:59:33

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 988 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 2019/2/18 14:44:00

#50 Posted: 2019/2/18 23:53:03

Jean Giraud

983 likes in 6,866 posts.

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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 871 time(s).

#51 Posted: 2020/11/22 04:47:54

Вячеслав Мезенцев

1,532 likes in 1,838 posts.

Group: Moderator

Updated.

Changes:

- source code updated to ALGLIB 3.16.0;
- refactored.

Russia ☭ forever, Viacheslav N. Mezentsev

#52 Posted: 2021/2/22 16:06:56

Вячеслав Мезенцев

1,532 likes in 1,838 posts.

Group: Moderator

Updated.

Changes:

- source code updated to ALGLIB 3.17.0;

Russia ☭ forever, Viacheslav N. Mezentsev

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sergio 2021/11/17 12:20:00

#53 Posted: 2021/11/17 11:42:24

Вячеслав Мезенцев

1,532 likes in 1,838 posts.

Group: Moderator

Plugin updated.

Changes:

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

Russia ☭ forever, Viacheslav N. Mezentsev

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Fridel Selitsky 2021/11/17 12:18:00, sergio 2021/11/17 12:20:00, Alvaro 2021/11/17 13:00:00, NDTM Amarasekera 2021/11/17 16:44:00

#54 Posted: 2021/12/8 02:43:14

Вячеслав Мезенцев

1,532 likes in 1,838 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: 2021/12/10 01:36:46

Вячеслав Мезенцев

1,532 likes in 1,838 posts.

Group: Moderator

Plugin updated.

Changes:

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

Russia ☭ forever, Viacheslav N. Mezentsev

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sergio 2021/12/10 05:27:00

#56 Posted: 2021/12/20 16:18:35

Вячеслав Мезенцев

1,532 likes in 1,838 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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