Absolutely free mathematical program with "paper"-like interface and numerous computing features (now with integrated mathematical reference book).

Quote

Controls:

With consecutive pushing of this button you can choose: "1", delimiter of the number ",", "square root - sqrt", "n-th root - nthroot", "integral - int", "function to find roots of equations - solve". To lock any variant just stop pushing this button 1 second.
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With consecutive pushing of this button you can choose: "number related to the button", "symbols related to this button". To lock any variant just stop pushing this button 1 second.

With consecutive pushing of this button you can choose: "plus operator", "minus operator", "multiplication operator", "division operator", "exponentiation operator", "plus/minus operator", "factorial", "vector multiplication operator". Also with this pushed button you can highlight the part of equation by using Left/Right buttons.

By "clicking" on this button program will numerically calculate equation (this means "="); by pushing button more than 0,4 sec. program will symbolically calculate equation (this means "->"). Also, if the cursor located on the right of the not defined variable or not defined function this button will create a definition operator (this means ":=" ).

Removing last character (Backspace). In the mathematical reference book this button means "Back".

• Added ability to zoom the worksheet using Ctrl+Mouse Wheel or via GUI (Menu on the Status Bar);
  
  
• Added ability to create plugins to extend SMath Studio worksheet with new types of Regions (Custom Regions);
  
• Translatable Units implemented;
  
  
• Graph animation implemented;
  
  
• Exponential threshold setting added;
  
  
• Performance of the el(..), rows(..), cols(..) and length(..) functions improved;
  
• Added ability to show/hide grid on the Plot Control;
  
• Added ability to show/hide axes on the Plot Control;
  
• Symbolic library simplification engine improved;
  
• Added support for *.txt files to drag'n'drop to the Worksheet;
  
• Added ability to display text as a result for the Math Regions with manually specified Units;
  
• Example of animation added: PlanetaryGear.sm;
  
• Added ability to show current language for the Translatable Regions;
  
• Worksheet's context menu improved to display languages supported for the Region;
  
• Plot Region and Math Region components extended to support hidden input data mode;
  
• Settings dialog reworked: some of the options require program restart now;
  
  
• Context menu of Math Region extended with options: Decimal Places, Exponential Threshold and Fraction type;
  
• Added ability to use value recommended by Dynamic Assistance by Enter pressing;
  
• In the Dynamic Assistance hint "TAB+Shift" replaced with "Shift+TAB";
  
• Pictures saves in XML using base64 format now instead of binhex (output files size decreased);
  
• Backspace behavior improved for Math Region (f.e. in expression "1+2" it takes 3 backspace' uses to remove all);
  
• Plot 2D and Plot 3D buttons removed from the math toolbar panel;
  
• Math Region improved;
  
• Worksheet's Context Menu improved;
  
• Translatable Regions interfaces improved;
  
• Units importing from XML file implemented;
  
• Beam example corrected;
  
• Home and Back buttons fixed for the Math Book;
  
• Fixed changing of the border for multiple selected Regions when Regions has different border value;
  
• Fixed error appears on moving Collapsed Area using Up/Down/Left/Right keyboard buttons;
  
• Fixed issues appears after pasting Regions (lost metadata etc);
  
• Fixed error of application opening on multi-monitor configuration (program will open on the connected display only);
  
• Fixed errors with Units for zero;
  
• Fixed error appears on file Save if only SMath Studio files plugin installed;
  
• Save file dialog will not be shown if no file plugins installed;
  
• Handling of the messages from plugins improved (fixed issue about invisible regions on Worksheet's load);
  
• Solve function limits issue fixed;
  
• Fixed issue appears when pasted image was shown outside of the visible Worksheet bounds;
  
• Fixed issue with All Units item shown twice into the Insert Units Dialog;
  
• New interface languages added: CAT, FAS, FIN, HEB, LAV, SLK, SWE;
  
• Language files updated;
  
• Refactoring.

• Area Regions with protection ability implemented;
  
  
  
  
• Snippets feature implemented;
  
  
  
  
• ImageFileType plugin included (it adds an ability to save whole worksheet into *.png, *.gif, *.jpeg and *.bmp image formats);
  
  
• Support for Compressed SMath File type (*.smz) added;
  
  
• Added ability to use functions as programs (i.e. programming functions can be used into the right part of definition expression);
  
  
• Added ability to move up all Regions of the Worksheet below the cursor using Delete keyboard button;
  
• Added ability to exclude Area regions from print out;
  
• Added ability to replace all definitions and equalities with a "=" sign on print out;
  
  
• "Beam load calculation bearing with two supports" example included into the Examples Dialog of SMath Studio;
  
  
• GravitationAcceleration.sm example file translated to IND;
  
• Sorting improved in the Dynamic Assistance list when items with subscript in there names exists;
  
• Angles global option removed from the Options Dialog;
  
• Several physical constants added to the built-in list of Units: G.N, h, N.A, μ.0, e, m.e, m.p, m.n, m.u, R.gas, k;
  
• Units "erg", "grad" and "gon" added to the built-in list of Units;
  
• Dynamic Assistance hint tooltip implemented (it shows what keystrokes can be used to work with Dynamic Assistance);
  
  
• Added ability to draw text on the 2D Plot Control canvas;
  
  
• Added ability to draw special characters on the Plot Control canvas;
  
• IsDefined(..), roots(..) and Jacob(..) functions added to SpecialFunctions plugin;
  
• Ability to open/save *.sm file types are moved to plugin;
  
• Line function alignment corrected to top;
  
• Text and units inside math regions now keeps their colors even if the color of region's background is changed by user;
  
• Desktop: Fixed Area/Separator print issue when its width was wrong on print out;
  
• Dynamic Assistance now doesn't appear on Ctrl+G keystroke into the Text elements of the Math region;
  
• Last digits of the built-in constants corrected into the Dynamic Assistance hints;
  
• Fixed critical error appeared on Control Paint error ("Red Cross Death" exception);
  
• Limitation of the summation function arguments removed, now it is possible to set top limit less then bottom limit;
  
• Fixed Units power error when "Real" or "Imaginary" item chosen of the "Answer (set)" option in Options Dialog;
  
• HTMLFileType plugin improved: added support for the formatted text;
  
• Fixed issue appears within Math Region if one presses buttons 2*3' - Cursor have wrong position after last symbol is inserted;
  
• Fixed issue when definition operator did not appeared for some functions when user pressed "=" operator for undefined expression;
  
• Built-in functions usage improved;
  
• Evaluation and File Types plugins improved;
  
• Ability to work with different functions styles improved;
  
• Fixed numerical issue with fractional powers of matrices;
  
• Critical error fixed, appears when user presses ';' keyboard button using the program with options: '.' as a Decimal Symbol and ',' as a Arguments separator;
  
• Fixed error appeared when all format options of the Math region lost on spacebar enter to convert Math region to Text region;
  
• Fixed issue when installed copy of the program represents as a portable version;
  
• Fixed issue when if(..) function cannot be used to plot a graphs;
  
• Fixed numeric and symbolic issues of comparing strings;
  
• Symbolic engine trigonometric simplification error fixed: "-4*sin^2*α+5-4*cos^2*α";
  
• Fixed infinite loop problem when user defines recursive function: sin(x):=sin(2*x); sin(x):=sin(3*x);
  
• Fixed error with changing History steps for Plot Regions;
  
• Multi-threading evaluations improved when calculation in progress for more then one worksheet;
  
• Program now shows an error on symbolic evaluation of expression contains function with empty name;
  
• Teamwork Session: Fixed error with wrong delimiters sent to client on session join;
  
• Teamwork Session: Critical error fixed appears sometimes on worksheet recalculating;
  
• Teamwork Session: Fixed error when Optimization and Disable Evaluation properties cannot be sent to client;
  
• Language files updated;
  
• Refactoring.

• Handheld:
  Framework: .NET Compact Framework 2.0 cab (5,33МБ), zip (1,99МБ)
  Compatibility: Pocket PC 2002, WM 2003, WM 2003 SE, WM 5, WM 6, WM 6.1, WM 6.5, full VGA support, all PPC's, Comunicators and smartphones.
  
• Desktop (Windows):
  Framework: .NET Framework 2.0
  
• Desktop (Linux):
  Framework: Mono 2.0 (libmono-winforms-2.0-cil package) or higher

Desktop и Handheld (34 languages):

[BEL] Belarusian / Беларуская

[BUL] Bulgarian / Български

[CAT] Catalan / Català

[CHS] Chinese (Simplified) / 简体中文

[CHT] Chinese (Traditional) / 簡體中文

[CPP] Portuguese (Brazil) / Brazil (Português)

[CZE] Czech / Čeština

[DAN] Danish / Dansk

[DUT] Dutch / Nederlands

[ENG] English / English

[FAS] Persian / فارسی

[FIN] Finnish / Suomi

[FRE] French / Français

[GER] German / Deutsch

[GRE] Greek / Ελληνικά

[HEB] Hebrew / עברית

[HUN] Hungarian / Magyar

[IND] Indonesian / Bahasa Indonesia

[ITA] Italian / Italiano

[LAV] Latvian / Latviešu

[LTH] Lithuanian / Lietuvių

[NOR] Norwegian / Norsk

[POL] Polish / Polski

[POR] Portuguese / Português

[RON] Romanian / Română

[RUS] Russian / Русский

[SCC] Serbian (Latin) / Srpski

[SCR] Croatian / Hrvatski

[SLK] Slovak / Slovenčina

[SPA] Spanish / Español

[SRP] Serbian (Cyrillic) / Српски

[SWE] Swedish / Svenska

[TUR] Turkish / Türkçe

[UKR] Ukrain / Українська

Free Download

• Handheld (PPC, Communicator, Smartphone):
  SMathStudioHandheld.0_90.Setup.cab (Date: 09.01.2012. File size: 2.85MB) - * To install from the device
  SMathStudioHandheld.0_90.Setup.cab.zip (Date: 09.01.2012. File size: 707KB) - * To install from the device (archive with CAB inside)
  
• Desktop Windows (desktop computer with Windows OS):
  SMathStudioDesktop.0_90.Setup.msi (Date: 09.01.2012. File size: 1.61MB)
  SMathStudioDesktop.0_90.Portable.exe (Date: 09.01.2012. File size: 17.48MB) - .Net Framework 2.0 doesn't required
  
• Desktop Linux (desktop computer with Linux OS):
  SMathStudioDesktop.0_90.Mono.tar.gz (Date: 09.01.2012. File size: 807.39KB) - last version of Mono distributive required!

* For installation of the program from PPC it is necessary to transfer a file on Your handheld computer (for example, with MS ActiveSync) and start it there with Your file manager.

Tutorial

SMath Studio tutorial by Bernard Liengme.

• SMathPrimer.pdf (Date: 11.11.2011. File size: 2.06MB) - to open in Adobe Acrobat Reader

Introduction of the use of SMath Studio by Gilberto E. Urroz, Ph.D., P.E.

• SMathStudio.0_85.Article.Eng.pdf (Date: 23.09.2009. File size: 828.96KB) - to open in Adobe Acrobat Reader
  
• SMathStudio.0_85.IOFiles.Article.Eng.pdf (Date: 27.09.2009. File size: 453.24KB) - to open in Adobe Acrobat Reader
  
• SMathStudio.0_85.NumericFunctions.Article.Eng.pdf (Date: 18.10.2009. File size: 622.45KB) - to open in Adobe Acrobat Reader
  
• SMathStudio.0_85.Programming.Article.Eng.pdf (Date: 18.10.2009. File size: 411.74KB) - to open in Adobe Acrobat Reader

Other files

SMath Studio icons () of all available sizes (16x16, 24x24, 32x32, 48x48, 64x64, 96x96, 128x128, 256x256) in PNG format.

• SMathStudio.Icons.zip (Date: 12.04.2010. Size: 63.74KB)

Excellent work and very impressive improvements. Thank you!