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Offline Andrey Ivashov  
#1 Posted : 13 May 2021 02:23:58(UTC)
Andrey Ivashov


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SMath Studio - SMath
Created by SMath LLC in the scope of SMath project. Published by smath.

SMath Studio

  • SMath Studio box
  • Calculation of Gravitation Acceleration example
  • Example of animation on the Worksheet
  • Extensions Manager tool
  • Opened math Reference Book
  • SMath Viewer output to Autocad example
  • SMath Studio on iOS
  • SMath Studio on iPad

Tiny, but powerful mathematical program with WYSIWYG editor and complete units of measurements support.

It provides numerous computing features and rich user interface translated into about 40 different languages. Application also contains integrated mathematical reference book.

Free for personal usage! Plans for Organizations are available!

Application can be easily extended based on your needs. Built-in Extensions Manager tool allows to get access to hundreds official and third-party resources of the following types: usage examples, plug-ins, SMath Viewer based applications, snippets, interface translations, interactive books, handbooks and tutorials.

They trust us *

* Customers' names and logos are used with the written permission of the copyright holders.

They talk about us (all reviews...)

  • Thank you very much for your work and for you programm. I have just started to use it, but already see that it's a wonderful tool for engineers.

    by Ilya Shulika

  • Thank you Andrey Ivashov for developing this wonderful software, as well as all the people who contribute with solutions day after day. As a university professor, I must say that the use of SMath Studio has contributed greatly to improve the way of transmitting and sharing knowledge.

    by Eduardo Palma Zambrano

  • Great software. Excellent tool for engineering students to make study of complicated problems a breeze. Time need to familiarize is very less as there are good guides prepared for easy use.

    by Razook

  • Powerful tools to support dynamic calculation. Excellent!

    by Omar Panta Carranza

  • I really like it. It's one of the most usable free software applications I deal with.

    by Juanma Belda

  • This mathematical tool is very useful. I was a Mathcad user, now I use SMath in all courses I teach and ask my students to use it.

    by Waluyo Adi Siswanto

  • Alternativa gratuita fantastica a MathCAD ! This is a fantastic free alternative to Mathcad, strongly recommended to anyone dealing with engineering and calculus.

    by Marco

  • I have been wishing for a sensible alternative to the free version of MathCAD for a long time. I find such software a crucial tool for writing technical-paper-style documents with live formulas and units carried throughout. I am so happy to have found SMath Studio as it is not just a completely free, fully featured alternative, but I find it to be much better in that it is tiny, is easier to use, has nice community support and has nice expandability by others (through plugins). It has features I've always wanted like setting of number of significant digits (not just number of decimal places), easier typing of subscripts, better plotting (via the X-Y Plot plugin), ability to include other SMath files (like my own units definitions), the very innovative and helpful "dynamic assistant", the ability to assign values to variables *after* the writing of a formula, no watermark across each page, and many other improvements that I have yet to discover. Since I am so pleased, I just donated $100 which I feel is a more reasonable amount for software like this. Thank you, Andrey!

    by John David Heinzmann

  • Excellent program. Thanks to his author for freely sharing such an amazing piece of software. Thumbs up.

    by A Chang

  • This has been a great step up from Excel. Extensive (and extensible) support for engineering units opens a new world for well documented everyday analysis. Thank you!

    by Mike Graham

SMath Studio in publications

SMath Studio plug-ins (all plug-ins...)

The functionality of the program can be expanded through the installation of plug-ins created by third-party developers and companies, as well as those prepared by the SMath LLC team. Most plug-ins are open source and can be modified if necessary.

  • Extends SMath Studio with a 3D Plot Region.
    Extends SMath Studio with a 3D Plot Region.
    Jack Xu, Viacheslav N. Mezentsev (viacheslavmezentsev@ya.ru)
  • Extends SMath Studio with more save/import/export features.
    Extends SMath Studio with more save/import/export features.
    Davide Carpi (davide.carpi@gmail.com)
  • Access to a set of programs for calculating properties of water, steam, gases and gases mixtures. Requires separate installation of the Water Steam Pro libraries and appropriate license for it (see http://www.wsp.ru/).
    Access to a set of programs for calculating properties of water, steam, gases and gases mixtures. Requires separate installation of the Water Steam Pro libraries and appropriate license for it (see http://www.wsp.ru/).
    ООО "ЭсМат"
  • Provides access to the free and open source computer algebra system Maxima.
    Provides access to the free and open source computer algebra system Maxima.
    Kay Graubmann & Martin Kraska (THB www.th-brandenburg.de)
  • Extends SMath Studio with a X-Y Plot Region.
    Extends SMath Studio with a X-Y Plot Region.
    Jack Xu, Viacheslav N. Mezentsev (viacheslavmezentsev@ya.ru)
  • A SMath Studio native wrapper of the CoolProp library (www.coolprop.org) - thermophysical property database and wrappers for a selection of programming environments.
    A SMath Studio native wrapper of the CoolProp library (www.coolprop.org) - thermophysical property database and wrappers for a selection of programming environments.
    Mike Kaganski
  • Contains nonlinear solvers for equations and systems of equations: Bisected Direct Quadratic Regula Falsi (BDQRF), Bisection, Brent's, Broyden's, Homotopy, Newton-Raphson, Ridder's, Secant, etc.
    Contains nonlinear solvers for equations and systems of equations: Bisected Direct Quadratic Regula Falsi (BDQRF), Bisection, Brent's, Broyden's, Homotopy, Newton-Raphson, Ridder's, Secant, etc.
    Davide Carpi (davide.carpi@gmail.com)
  • Digital Signal Processing Library: spectral analysis, IIR and FIR filters, resampling algorithms, etc.
    Digital Signal Processing Library: spectral analysis, IIR and FIR filters, resampling algorithms, etc.
    Sergey Bakhurin (http://dsplib.org), Viacheslav N. Mezentsev (viacheslavmezentsev@ya.ru)
  • Extends SMath Studio with statistical tools: Sample Estimators, Probability Density, Cumulative Density, Quantile functions, Random Numbers, etc.
    Extends SMath Studio with statistical tools: Sample Estimators, Probability Density, Cumulative Density, Quantile functions, Random Numbers, etc.
    Davide Carpi (davide.carpi@gmail.com)
  • Provides an interface to the SQLite relational database engine.
    Provides an interface to the SQLite relational database engine.
    Chris Bietz, Viacheslav N. Mezentsev
thanks 2 users thanked Andrey Ivashov for this useful post.
on 13/05/2021(UTC),  on 13/05/2021(UTC)
Offline Andrey Ivashov  
#2 Posted : 13 May 2021 02:39:37(UTC)
Andrey Ivashov


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Improved Search panel:
ss_search_1.png

Copy from Worksheet to Document:
ss_copy_to_text_1.gif

Automated plug-ins update after new SMath Studio installation:
ss_auto_update_1.gif

Edited by user 13 May 2021 02:41:14(UTC)  | Reason: Not specified

thanks 4 users thanked Andrey Ivashov for this useful post.
on 13/05/2021(UTC),  on 13/05/2021(UTC),  on 13/05/2021(UTC),  on 13/05/2021(UTC)
Offline wb.c  
#3 Posted : 13 May 2021 17:18:27(UTC)
wb.c


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I'm getting a virus issue when I save an exe in the full version.

Capture111.PNG

The file seems to work fine on the computer I created it on, but when I send it to another PC, windows defender blocks it and detects the trojan Win32/AgentTesla!ml.
Not sure how to handle this. I can't distribute exe files like this.

*when I send it in a zipped folder via email.

Edited by user 13 May 2021 17:40:27(UTC)  | Reason: Not specified

Offline Jean Giraud  
#4 Posted : 13 May 2021 17:28:02(UTC)
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Originally Posted by: wb.c Go to Quoted Post
I can't distribute exe files like this.

Any *.exe is prone to virus, though many are reputed safe.
IrfanView, WinGrab, WASP, ColorPick, Calipers ...
The MathSoft Collaboratory did reject any *.exe attachment.
Offline Andrey Ivashov  
#5 Posted : 13 May 2021 17:32:45(UTC)
Andrey Ivashov


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Originally Posted by: wb.c Go to Quoted Post
The file seems to work fine on the computer I created it on, but when I send it to another PC, windows defender blocks it and detects the trojan Win32/AgentTesla!ml.
Not sure how to handle this. I can't distribute exe files like this.

False positive. Anti-virus software sometimes do not like when programs creates other programs. You have to contact to your anti-virus vendor or exclude such programs from scanning.

Unfortunately I can do nothing with it.
Offline wb.c  
#6 Posted : 13 May 2021 17:43:34(UTC)
wb.c


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Just an update. I transferred the file with a flash drive instead of email and there is no issue at all. No virus detected, no unknown program warning, as it had worked in the past.
I was using the native windows zip feature, maybe that had something to do with it?

Thanks for the quick feedback Andrey.
Offline wb.c  
#7 Posted : 13 May 2021 19:56:47(UTC)
wb.c


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Alright, did some more testing and no matter how I send the file (removed extension, fake extension, zipped, file share download) windows is still detecting a virus.

How are we supposed to share our exe files if they get blocked as viruses? I don't remember this being an issue before as I've sent several of my exe files before without issues.

Capture33.PNG
Offline Andrey Ivashov  
#8 Posted : 13 May 2021 20:22:57(UTC)
Andrey Ivashov


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Originally Posted by: wb.c Go to Quoted Post
Alright, did some more testing and no matter how I send the file (removed extension, fake extension, zipped, file share download) windows is still detecting a virus.

How are we supposed to share our exe files if they get blocked as viruses? I don't remember this being an issue before as I've sent several of my exe files before without issues.

I'm using Windows 10 and cannot reproduce this issue. Are you sure your PC has no viruses which could break exe files generated by SMath Studio?
Offline wb.c  
#9 Posted : 13 May 2021 20:27:40(UTC)
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I'm running win10 as well. No viruses. Try to zip an exe and sent it to another computer running windows. Remember, this is not a problem for the computer where I made the exe, only when I share it.

By the way, the exact same exe file copied to to the other computer using a USB drive has no issues at all. Only having issues when the exe comes off of email or is downloaded.

Edited by user 13 May 2021 20:29:18(UTC)  | Reason: Not specified

Offline overlord  
#10 Posted : 13 May 2021 20:28:32(UTC)
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Originally Posted by: Andrey Ivashov Go to Quoted Post
I'm using Windows 10 and cannot reproduce this issue. Are you sure your PC has no viruses which could break exe files generated by SMath Studio?

Probably he has one that machine doesn't aware of.
In my old job my pc has one too and all SMath Viewer files I produced with them had trojans.
At the same time that was not an issue with my home pc wtih same SMath version and files.
This issue has been corrected after a format.

Regards
Offline Davide Carpi  
#11 Posted : 13 May 2021 20:40:03(UTC)
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AgentTesla is a quite specific Trojan, usually in the cases of false positive triggered by suspicious behavior the issue is labeled with something like "generic.win32". The detection is based on euristic algorithms thus not so straightforward and just speculation, but the fact that is prompted by a popular antivurus but not noticed by anyone (AFAIK) might indicate a system infection rather than a program issue.
If you like my plugins consider to support SMath Studio buying a plan; to offer me a coffee: paypal.me/dcprojects
Offline Razonar  
#12 Posted : 13 May 2021 20:42:53(UTC)
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Hi. First, do you scan the file with others AV? You can do that online without installing anything at several sites. For instance you can try at

https://online.drweb.com/

https://opentip.kaspersky.com/

Windows defender isn't a robust AV.

On the other hand, the SMath viewer files store the plugins necessary for their execution within the exe file. That is, if any of the extension files used by the .sm file that you "compile" has a virus, or a false positive report, it will only give that positive with the plugins you use in that particular file, which may be very difficult to reproduce that positive.

Best regards.
Alvaro.
Offline wb.c  
#13 Posted : 13 May 2021 20:54:32(UTC)
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Did a scan on the kaspersky site and the exe file is clean.
Offline Andrey Ivashov  
#14 Posted : 13 May 2021 21:57:39(UTC)
Andrey Ivashov


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Originally Posted by: Razonar Go to Quoted Post
On the other hand, the SMath viewer files store the plugins necessary for their execution within the exe file. That is, if any of the extension files used by the .sm file that you "compile" has a virus, or a false positive report, it will only give that positive with the plugins you use in that particular file, which may be very difficult to reproduce that positive.

All plug-ins are compiled on the dedicated build machine (setup for SMath project exclusively) which has no Internet access and has installed Kasperski Anti-virus. In addition all files downloaded using HTTPS which guarantees compiled files are identical to what you received on your machine.
So what you've described is almost impossible situation.
Offline Razonar  
#15 Posted : 13 May 2021 23:12:52(UTC)
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Originally Posted by: Andrey Ivashov Go to Quoted Post
Originally Posted by: Razonar Go to Quoted Post
On the other hand, the SMath viewer files store the plugins necessary for their execution within the exe file. That is, if any of the extension files used by the .sm file that you "compile" has a virus, or a false positive report, it will only give that positive with the plugins you use in that particular file, which may be very difficult to reproduce that positive.

All plug-ins are compiled on the dedicated build machine (setup for SMath project exclusively) which has no Internet access and has installed Kasperski Anti-virus. In addition all files downloaded using HTTPS which guarantees compiled files are identical to what you received on your machine.
So what you've described is almost impossible situation.


Hi Andrey. I'm explain very bad. Let me try to say the same with an example.

This file calculate a numerical value of an integral, but evaluated symbolically, only with SMath int(x^2,x,0,a) function. It's size is 2 793 bytes

SMathViewerWithOutMaple.zip (603kb) downloaded 7 time(s).

Clipboard02.jpg

This other do the same, but with the maple plugin as maple(int(x^2,x,0,a)), and it's size is now 14 489 088 bytes.

SMathViewerWithMaple.zip (14,150kb) downloaded 8 time(s).

Clipboard01.jpg

What I mean with "compile" it's that for this second file all the files for maple are stored in the exe file, for example gif.dll, mkernel.dll, cmaple.exe. Those maple files are very old, and are good candidates for false positives. It could be hard to determine for which plugin an AV like windows defender goes to return false positives if you don't know which plugin is stored in the exe SMath Viewer.

Hope now I explain better.

Best regards.
Alvaro.

Edited by user 13 May 2021 23:16:31(UTC)  | Reason: Not specified

thanks 1 user thanked Razonar for this useful post.
on 14/05/2021(UTC)
Offline Denis.N  
#16 Posted : 14 May 2021 15:52:47(UTC)
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Problems with copy and paste in document mode
oW06TlTbBP.gif
Offline PompelmoTell  
#17 Posted : 14 May 2021 16:03:19(UTC)
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I confirm what is indicated by Denis, even in my installation

sergio
Offline Andrey Ivashov  
#18 Posted : 14 May 2021 16:40:27(UTC)
Andrey Ivashov


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Originally Posted by: Denis.N Go to Quoted Post
Problems with copy and paste in document mode

Yeah, it is a known issue - copy/paste of content inside Text Region is not implemented yet (except simple text). I plan to handle it soon.
Thank you!
thanks 2 users thanked Andrey Ivashov for this useful post.
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Offline Andrey Ivashov  
#19 Posted : 14 May 2021 16:52:48(UTC)
Andrey Ivashov


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Originally Posted by: wb.c Go to Quoted Post
Did a scan on the kaspersky site and the exe file is clean.

I have some good news regarding false positive detection! After a long night and morning I've found binary pattern which triggers some AVs to mark executables created by Viewer as malicious...
Knowing it I've added possibility to give AVs a fight! Unfortunately I have to disable compression of internal resources to do it, but I do not think it is so bad.
Please try a new SMath Studio version - it has the following checkbox (uncheck -> file size increased -> AVs are happy -> profit):
viewer_options_compression_1.jpg

Here are results of testing the output result in VirusTotal:

Before
virustotal_viewer_1_before.jpg
https://www.virustotal.c...a71f82f384cb44/detection

After
virustotal_viewer_1_after.jpg
https://www.virustotal.c...3953893f835389/detection

Best regards.

Edited by user 14 May 2021 17:04:31(UTC)  | Reason: Not specified

Offline Andrey Ivashov  
#20 Posted : 14 May 2021 18:29:40(UTC)
Andrey Ivashov


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Just to mention: in my case file size without compression is 1.35MB (against to 0.6MB with compression). But using 7-Zip afterwards allows to make a size less than 0.5MB, which is good enough for delivering to other people.

Please confirm issue with copy/paste of exe files fixed now.
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