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

• Picture Region improved to support scaling and read-only mode;
  
• Picture Region improved to be automatically fitted to the page width on Picture insert if page layout specified;
  
• Added support for colors specifying for the special objects and strings into the Plot Region using web format (like #6699CC);
  
• Function sum(1) now built-in to the program;
  
• Continue and Break statements implemented.
  
• Area Region improved to support multi-language feature for the Area titles;
  
• Added ability to set title for the Separator Region;
  
• Descriptions can be now used not only for Math Regions but for any evaluable regions like Plot Region;
  
• Pound-mole (lbmol) built-in Unit added;
  
• Added ability to start SMath Studio in silent mode using '-silent' argument next to the list of worksheet files to process files without starting SMath Studio GUI;
  
• Handling of arguments separator keying improved in Math Region;
  
• Added ability to add a new cell to the vector/system/line by keying arguments separator;
  
• Error handling corrected to indicate whether it is not possible to define element of the nested arrays using el(..) function;
  
• Unit conversion corrected when working with operations like (1/a)^b -> 1/a^b;
  
• Default Text Region font name now don't exported to .sm/.smz file saving;
  
• Several critical/calculation issues fixed usually appeared on complex units evaluation;
  
• Fixed issues when Description of the evaluable region become empty after file save/load cycle.
  
• Fixed issue when undesirable brackets appeared sometimes around the pasted math expressions;
  
• Fixed critical error of Text Region appeared sometime on Cut/Backspace operations;
  
• Fixed error tooltip location issue when Region for the tooltip located between two Collapsed Areas;
  
• Fixed issue when Separator cannot be moved by the mouse;
  
• Fixed error appeared in some cases when big numbers processed with symbolic engine ("xE" error);
  
• Fixed error appears for min/max functions when working with zeros and other values that includes units;
  
• Fixed issue when it was impossible to use trailing zeros option for zero results;
  
• Fixed issue when some functions are shown twice in the Insert Function dialog;
  
• Fixed critical error appeared on removing of empty cell from the vector/system/line functions if nested matrix/system/line exists there;
  
• Critical error appears on Region remove if the Region focused and located after the collapsed Area fixed;
  
• Fixed Region's selection error appeared sometime on fast mouse clicks;
  
• Fixed new Region painting issue if a Region added to the top left corner of the Worksheet;
  
• Fixed error of defining matrix elements using symbolic optimization;
  
• Fixed critical error appears on evaluation if manually assigned result Units contains any math error;
  
• Fixed simplification errors of the boolean operators related to wrong sign of the result expression;
  
• Fixed errors of the operations with matrices and scalars in symbolic library;
  
• Examples improved;
  
• Refactoring.

• Critical error fixed appeared on changing Description language of the set of evaluable Regions when one or more Regions in the set has no Description at all;
  
• Calculation errors fixed in symbolic library for the following expressions: sin(atan(x)), cos(acot(x)), tan(asin(x)), tan(acos(x)), cot(asin(x)) and cot(acos(x));
  
• Working with multi-language enabled Text Regions improved;
  
• Resizing of the Picture fixed;
  
• Critical error appears on operator keying fixed;
  
• Product function button on the right panel fixed;
  
• Sum function button on the right panel repaired to insert sum(4).

• Desktop (Windows):
  Framework: .NET Framework 2.0
  
• Desktop (Linux):
  Framework: Mono 2.0 (libmono-winforms-2.0-cil package) or higher

Desktop and 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

• Desktop Windows (desktop computer with Windows OS):
  SMathStudioDesktop.0_94_4523.Setup.msi (Date: 20.05.2012. File size: 1.75MB)
  SMathStudioDesktop.0_94_4523.Portable.exe (Date: 20.05.2012. File size: 17.98MB) - .Net Framework 2.0 doesn't required
  
• Desktop Linux (desktop computer with Linux OS):
  SMathStudioDesktop.0_94_4523.Mono.tar.gz (Date: 20.05.2012. File size: 839.27KB) - last version of Mono distributive required!

Note: No current version of SMath Studio Handheld release will be introduced. Please use the latest stable handheld version (0.90).

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)

Thanks for fixing the pi product function and for using sum(4) instead of sum(1) in the right-hand side palette.

- unfortunately not possible to delete an imported picture

+ picture scale works fine

Wrote

- unfortunately not possible to delete an imported picture

+ picture scale works fine

i've not seen your issue... i can delete imported images without problems...