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Offline uni  
#41 Posted : 29 November 2020 09:50:04(UTC)
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Originally Posted by: overlord Go to Quoted Post
It is scalable and vectorial, you can easily add new items or remove existing without print quality loss.
You can also create it with Inkscape, Adobe Illustrator, etc. But please explain, why shouldn't we also do this inside SMath?
We are just dreaming here (only dreaming at this moment) to create or manipulate this kind of things in SMath Studio.

This is more complicated than a simple shape plugin. If the shapes need to be connected or combined into diagrams, then this is already more difficult. You should know that in ms office not svg pictures are used, but special classes, since you can't have interactive schemes based on pictures alone. It will look like a small cad system. I mentioned this earlier here. The OpenS-CAD source code is more suitable for your requirements.
But as you probably know, you need to find human resources to do this job. Unfortunately, it is not yet clear how to do this. Most of the users are happy with the current functionality.
This topic is used only for collect ideas, not for discussing them. I created a separate one where you can continue, but there is a bug in the forum engine that prevents me from moving the discussion there.

Edited by user 29 November 2020 09:51:38(UTC)  | Reason: Not specified

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Offline overlord  
#42 Posted : 29 November 2020 11:11:07(UTC)
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Shapes don't need to be connected, they are not in this example too.
Only need is them to be simple resize function.
Some polygons, triangle, square, circle, lines and arrows should be enough.
This is just an idea by the way.

Regards
Offline Jean Giraud  
#43 Posted : 29 November 2020 22:29:33(UTC)
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Originally Posted by: overlord Go to Quoted Post
Some polygons, triangle, square, circle, lines and arrows should be enough.

1. Polygons we have all sorts published [Area, Perimeter, Center of gravity]
2. Square, Triangle ... pretty easy
3. Circles ... we have all sorts in the Forum
4. Plenty of arrows.
Enjoy the clock ... Jean

Circle_rkfixed Clock.sm (27kb) downloaded 23 time(s).
Circle_rkfixed AnalogClock (1).sm (23kb) downloaded 19 time(s).
2D Plot Setup Glyphes-Quadrant-Arrow.sm (37kb) downloaded 22 time(s).
Offline Jean Giraud  
#44 Posted : 01 December 2020 04:08:02(UTC)
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Originally Posted by: uni Go to Quoted Post
This is more complicated than a simple shape plugin. If the shapes need to be connected or combined into diagrams, then this is already more difficult.

That's the answer.
Once you will have digested the under the hood of gyzmas shapes from Samples SVG Primer,
it is clear that all your creations are in vector. Then you need a core structure to
join all those vectors [of your creation] into again a resulting stand alone creation
That's what CAD systems do and there are plenty freeware ... LibreCAD, FreeCAD ...
Unfortunately, none come with infinite library of gyzmas shapes.
In 1990, I was consulting to revamp a bunker 2 Power Plant.
No choice: AutoCAD 11 ... why ?
Quebec-Hydro spent ~ 2 millions $ US for AutoDesk to design AutoCAD 11
wrt Process Control & Instrumentation, we had to design all our symbols +++
Who has need of that kind of re-invention in Smath ? ...
To me, SVG Plugin is a dead stone that won't grow wings until it turns into fertilizer.


Offline overlord  
#45 Posted : 01 December 2020 15:21:33(UTC)
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Yes uni, you are right. It is not easy task and require manpower but I think it is not impossible or very hard.
It is not a CAD system I am talking. You misunderstood the concept. There are already web sites which are SVG creators and editors.

https://editor.method.ac

There are also several vbnet codes I have found but not tested.

ShapeEditorTest_VS2010.zip (35kb) downloaded 13 time(s).

If I hadn't leave coding for 10+ years and have spare time nowadays, I assure you I could implement it. If html code can svg editing, .Net code sure can do.

And it was not me who made this is a discussion.
It was Jean who made it which one will piss further contest, as always he do.
I have just wrote my idea about a plugin to draw svg internally, he still try to debunk it.
He even tries to debunk bug reports which are truly there waiting for to be corrected. I just don't like his attitude about these issues. If he continue this I will reply to it.

Regards
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on 01/12/2020(UTC)
Offline Jean Giraud  
#46 Posted : 01 December 2020 19:34:54(UTC)
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Originally Posted by: overlord Go to Quoted Post
Yes uni, you are right. It is not easy task and require manpower but I think it is not impossible or very hard.
It is not a CAD system I am talking. You misunderstood the concept. There are already web sites which are SVG creators and editors.

Slight consolation that two of us misunderstood the concept.
Consequently to the failure of my XP Home PC, I have lost the personal e-mail
of Steen Groode the creator of GeoGebra https://www.geogebra.org/m/WWYy5394
Plenty of advanced Classrooms

Offline Razonar  
#47 Posted : 01 December 2020 20:11:28(UTC)
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Hi. Ok, now we have Document mode, in a first stage of implementation. Very good! So, time for ask for the next feature Good

Presentation mode!. SMath now can also store the zoom of the document, which can help in this feature. Presentation mode could mean different thinks, depending of the point of view of the developer. For example, this is what mean in Wolfram mathematica: https://reference.wolfra...to/CreateASlideShow.html

In Microsoft Power Point there are also an option (in a button at right bottom) for use the slides in presentation mode but into a window, not in fullscreen.

Maybe for SMath Presentation mode could be a fixed window with controls for move between slides, from some given templates for the screen proportions, in this case, the paper size and the default zoom. I guess that maybe that don't require a big effort for recoding everything. I don't know also if it necessary a new extension (like smp and smpz) or not.

Best regards.
Alvaro.

Offline uni  
#48 Posted : 04 December 2020 09:40:09(UTC)
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PETSc/TS: A Modern Scalable ODE/DAE Solver Library (arxiv.org:1806.01437)

PETSc Users Manual Revision 3.14 (03.12.2020).pdf (1,309kb) downloaded 15 time(s).

SOSlib - The SBML ODE SOLVER LIBRARY (arxiv.org:1503.01095)

github: https://github.com/raim/SBML_odeSolver

SBML ODE solver library. Extensions for inverse analysis.pdf (227kb) downloaded 17 time(s).
SBML ODE Solver Library. A native API for symbolic and fast numerical analysis of reaction networks.pdf (57kb) downloaded 12 time(s).

ODEN: A Framework to Solve Ordinary Differential Equations using Artificial Neural Networks (arxiv.org:2005.14090)

github: https://github.com/deniswerth/ODEN

Neural Ordinary Differential Equations (arxiv.org:1806.07366)
Solving Differential Equations Using Neural Network Solution Bundles (arxiv.org:2006.14372)
When are Neural ODE Solutions Proper ODEs? (arxiv.org:2007.15386)

Edited by user 04 December 2020 12:24:49(UTC)  | Reason: Not specified

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Offline uni  
#49 Posted : 22 February 2021 18:24:31(UTC)
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freesteam

Open source steam property routines in C. Implements the IAPWS-IF97 steam tables from the International Association for the Properties of Water and Steam. Includes two-way property solvers and test suite. Can be used from C/C++, Fortran, Python, LabVIEW, Octave and ASCEND.

1.png

Links:

1. https://sourceforge.net/projects/freesteam/
2. https://github.com/kevinfu2/freesteam
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Offline uni  
#50 Posted : 25 March 2021 17:38:33(UTC)
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libode: https://github.com/wordsworthgroup/libode

Easy to compile, fast ODE integrators as C++ classes

This repo contains a collection of C++ classes for solving systems of ordinary differential equations (ODEs) in autonomous form.
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Offline JenniferCastillo  
#51 Posted : 25 March 2021 18:33:05(UTC)
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Originally Posted by: uni Go to Quoted Post
It would be great to get these books and sources:

  • Practical Cross-Platform Charts and Graphics with ASP.NET Core MVC: Code Examples
  • Practical C# and WPF for Financial Markets: Code Examples
  • Practical Quantitative Finance with R: Code Examples
  • Practical .NET Chart Development and Applications: Code Examples
  • Practical WPF Charts and Graphics: Code Examples
  • Practical Numerical Methods with C#: Code Examples
  • Practical Silverlight Programming: Code Examples
  • Practical WPF Graphics Programming: Code Examples
  • Practical C# Charts and Graphics: Code Examples

I have only the last one.


Thanks for this I will definitely read this.
Offline Razonar  
#52 Posted : 26 March 2021 04:34:33(UTC)
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Originally Posted by: uni Go to Quoted Post
libode: https://github.com/wordsworthgroup/libode

Easy to compile, fast ODE integrators as C++ classes

This repo contains a collection of C++ classes for solving systems of ordinary differential equations (ODEs) in autonomous form.


Hi Viacheslav. I don't understand what mean autonomous for the library authors: are the library only for system of equations without an explicit independent variable? For example: x''+3*x'+2*x=0 is lineal and autonomous but x''+3*t+x+2*x=0 it's lineal but depends on t in an explicit way. Also, x''+3*x'+2*x=sin(t) is lineal with constant coefficients, but is not autonomous.

Best regards.
Alvaro.

Edited by user 26 March 2021 04:36:54(UTC)  | Reason: Not specified

Offline uni  
#53 Posted : 26 March 2021 10:20:39(UTC)
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Not sure about this, but:
Quote:
A non-autonomous system x'=f(t,x) can be reduced to an autonomous one by introducing a new unknown function x[n+1]=t.


Autonomous system
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Offline Razonar  
#54 Posted : 26 March 2021 19:44:35(UTC)
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Originally Posted by: uni Go to Quoted Post
Not sure about this, but:
Quote:
A non-autonomous system x'=f(t,x) can be reduced to an autonomous one by introducing a new unknown function x[n+1]=t.


Autonomous system


Hi. So, if you implement this library as plugin, and given that always you can get an autonomous system from a non-autonomous one, you can internally do the transformation taking the initials values as xo=stack(xo,t.ini) and the derivatives vector D(t,x)=stack(D(x[n+1],x),1), and finally suppressing the last column from the answer, like in the attached.

autonomous.sm (14kb) downloaded 17 time(s).

Best regards.
Alvaro.

Edited by user 26 March 2021 19:50:45(UTC)  | Reason: Not specified

Offline uni  
#55 Posted : 27 March 2021 07:41:37(UTC)
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Yes, I used a similar technique here.

I am collecting source code for interesting solver examples. Sooner or later, I hope there will be a possibility to add them. These examples can be converted to C# code. Then they will be available everywhere (Windows, Linux, ...).

Edited by user 27 March 2021 17:29:36(UTC)  | Reason: Not specified

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Offline xSaSB  
#56 Posted : 30 March 2021 04:51:57(UTC)
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Originally Posted by: uni Go to Quoted Post
Yes, I used a similar technique here.

I am collecting source code for interesting solver examples. Sooner or later, I hope there will be a possibility to add them. These examples can be converted to C# code. Then they will be available everywhere (Windows, Linux, ...).


https://github.com/wordsworthgroup/libode/commit/a8772e1fc3236acd25f18eef02049ca8d9594250
thanks 1 user thanked xSaSB for this useful post.
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Offline uni  
#57 Posted : 20 November 2021 11:18:41(UTC)
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libdspl-2.0 free digital signal processing algorithm library

https://github.com/Dsplib/libdspl-2.0

libdspl-2.0 — opensource cross-platform digital signal processing algorithm library, written in C language. Distributed under LGPL v3 license. This allows to use this library in all applications with dynamic linking.

libdspl-2.0 includes follow algorithms sets:

  • Digital spectral analysis, discrete and fast Fourier transform algorithms.
  • Analog and digital IIR filters design and analysis.
  • Digital FIR filters design and analysis.
  • Windows function collection includes 15 different parametric and nonparametric window functions.
  • Digital Hilbert transform algorithms.
  • Mathematical sections includes trigonometric, hyperbolic, elliptic functions of real and complex variables.
  • Pseudorandom numbers generation algorithms.
  • Statistic functions.
  • Linear algebra BLAS and LAPACK packages are used under the hood.
  • Digital resampling algorithms.
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Offline uni  
#58 Posted : 10 June 2022 15:16:13(UTC)
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John Burkardt: https://people.sc.fsu.edu/~jburkardt/

  • bash software;
  • bookmarks
  • c software;
  • c++ software;
  • classes;
  • data containing examples of various file formats;
  • datasets, sets of data associated with specific problems or subjects.
  • examples of the use of system or proprietary software;
  • fortran77 software;
  • fortran90 software;
  • fenics examples;
  • freefem examples;
  • fun;
  • keras examples;
  • matlab software;
  • octave software;
  • presentations;
  • publications;
  • python software;
  • r software;
  • workshop information;
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Offline marks2c  
#59 Posted : 21 May 2023 11:49:20(UTC)
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Originally Posted by: Razonar Go to Quoted Post
Originally Posted by: overlord Go to Quoted Post
Adding svg based interactively editable shapes as in ms office would be useful.


Great idea!
Best regards.
Alvaro.


Being able to import .svg drawings (better alternative than .png or .jpg) would be great. They are easy to edit in Inkscape etc.
Offline mkraska  
#60 Posted : 21 May 2023 19:59:46(UTC)
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Originally Posted by: marks2c Go to Quoted Post


Being able to import .svg drawings (better alternative than .png or .jpg) would be great. They are easy to edit in Inkscape etc.


The image region plugin can display svg images. You also can call inkscape from within an empty image region to create an image.
1. create an image region
2. in the context menu, set the filetype to svg
3. doubleclick the region, this opens the default program for the selected filetype.

This also works with png, e.g. with MS Paint, which opens much faster than inkscape.

Martin Kraska

Pre-configured portable distribution of SMath Studio: https://smath.com/wiki/SMath_with_Plugins.ashx
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Discussion of ideas for further plugins (Feature Requests)
by Jean Giraud 26/11/2020 18:08:27(UTC)
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