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.
-
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".

• SMath Studio now supports Mathcad files to open (files with .xmcd extension)!
  
• Desktop: Dynamic cursor changes implemented (on the bounds of the controls, on resizing, on moving etc...);
  
• Added ability to Undo/Redo for the hole page instead of the separate history for every control;
  
• Selecting page controls with Ctrl key pressed implemented;
  
• Desktop: Ctrl+M (Open Insert Matrix dialog), Ctrl+E (open Insert Function dialog) and Ctrl+T (insert picture control) shortcuts added;
  
• To start writing a text " (quotes) button can be pressed;
  
• Desktop: PI constant now can be inserted with a shortcut: Ctrl+Shift+P;
  
• Desktop: Added ability to Zoom graphs by mouse wheel;
  
• Desktop: added Drag & Drop ability to open files from the outside;
  
• Desktop: Window params now save on programe close (such as: size and location);
  
• Improved simplification of the functions ln(x) and lg(x) in case of the x-numbers are equal e (for ln) or 10^c (for lg);
  
• Trigonometric functions with standard values in deg. now can be simplified;
  
• Min required numbers changed from 10e-12 to 10e-99;
  
• Fixed error with Plot control: sometimes it can't be resized.
  
• sec() and cosec() [csc()] functions simplification ability added;
  
• Numeric library improved to exclude some calculating errors;
  
• identity(), matrix(), rows(), cols(), el(), length(), tr() functions implemented into symbolic library;
  
• Vector multiplication (cross product) operator added to symbolic library for native support;
  
• Loops (for, while) performance improved;
  
• All symbolic calculations results now displays all fractional powers as radicals;
  
• German interface translation updated;
  
• Fixed error: calculation results not updates after using Undo/Redo functionality;
  
• Handheld: Fixed error with various matrix Toolbar button modes on non-cyrillic devices;
  
• Corrected file names of opened pages on the main program Title;
  
• Fixed paths for the result html-file on Export to HTML action (especially for Linux version);
  
• Graphs improved (summ() function now work into the control);
  
• Border supporting added to SMath Studio controls;
  
• Handheld: Fixed error when user "Save as" file without filling extension in File Name input - this file can rewrite existent one without any confirmation dialog;
  
• Desktop: Fixed errors with Save-On-Close dialogs;
  
• Text Control now can be removed by removing all it's text;
  
• Fixed "Esc = Backspace" issue;
  
• Desktop: 3D plot accuracy increased;
  
• Fixed critical error, when Plot graphs with large z-coordinate;
  
• Update dialog now can be setted up to check for stable updates only;
  
• Couple of errors in symbolic library fixed;
  
• Speed and stability improved;
  
• Code optimizations.

• 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, full VGA support, all PPC's, Comunicators and smartphones.
  
• Desktop (Windows):
  Framework: .NET Framework 2.0
  
• Desktop (Linux):
  Framework: Mono 2.0

Desktop и Handheld (18 languages):

[ENG] English / English

[GER] German / Deutsch

[DUT] Dutch / Nederlands

[SPA] Spanish / Español

[FRE] French / Français

[POR] Portuguese / Português

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

[SCR] Croatian / Hrvatski

[SCC] Serbian / Srpski

[GRE] Greek / Ελληνικά

[CZE] Czech / Čeština

[HUN] Hungarian / Magyar

[ITA] Italian / Italiano

[POL] Polish / Polski

[RUS] Russian / Русский

[BUL] Bulgarian / Български

[LTH] Lithuanian / Lietuvių

[UKR] Ukrain / Українська

Free Download

• Handheld (PPC, Communicator, Smartphone):
  SMathStudioHandheld.0_78.Setup.cab (Date: 01.03.2009. File size: 1,2MB) - * To install from the device
  SMathStudioHandheld.0_78.Setup.cab.zip (Date: 01.03.2009. File size: 281,38KB) - * To install from the device (archive with CAB inside)
  SMathStudioHandheld.0_78.Setup.exe (Date: 01.03.2009. File size: 357,56KB) - To install from the PC
  
• Desktop Windows (desktop computer with Windows OS):
  SMathStudioDesktop.0_78.Setup.msi (Date: 01.03.2009. File size: 651KB)
  
• Desktop Linux (desktop computer with Linux OS):
  SMathStudioDesktop.0_78.Mono.tar.gz (Date: 01.03.2009. File size: 303,41KB) - 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.
** For installation of the program from PC it is necessary to install MS ActiveSync first.