MathType 6.9 for Windows
MathType is a powerful interactive equation editor for Windows and Macintosh that lets you create mathematical notation for word processing, web pages, desktop publishing, presentations, elearning, and for TeX, LaTeX, and MathML documents.
Works with 700+ Applications & Websites:
Click the Works With ... tab above to browse the full list of applications and websites that now work with MathType. Here are a few of the most popular:

Microsoft Office

Apple iWork '09

Adobe InDesign

iBooks Author

WordPress


Maple

GMail

Blackboard

Evernote

Moodle

More Ways to Create Equations:

Entering Math by Hand: Enter equations as easily as you would write math with paper and pencil! This feature uses the builtin handwriting recognition in Windows 7 and later.

PointandClick Editing with Automatic Formatting: Create equations quickly by choosing templates from MathType's palettes and typing into their empty slots. MathType applies mathematical spacing rules automatically as you type.

Keyboard Shortcuts: Save time using keyboard shortcuts. MathType has customizable keyboard shortcuts for virtually every symbol, template, and command.

Type TeX or LaTeX: If you already know the TeX typesetting language, you can enter equations directly into MathType or Microsoft Word documents. TeX editing can be mixed with pointandclick editing so you get the best of both worlds. You can even paste in equations from existing TeX documents.

CopyandPaste: If you created your equation in another application or found one on a website, why take the time to create it by hand again? Simply copyandpaste it directly into MathType, and it is ready to edit or use in your work.

Save Expressions in the Toolbar: Drag frequently used equations and expressions to the MathType toolbar so they can be inserted later with just a click or a keystroke.

Supports Microsoft Office:

Office 2013 and Office 365: MathType 6.9 is fully compatible with Office 2013 and Office 365 installed on Windows 7 and 8 computers.

Office 2010, 2007, 2003, and XP: MathType 6.9 is fully compatible.

Office Web Apps, Office Mobile, and Office RT: MathType equations cannot be edited in these Office versions but equations created in other versions of Office will display and print.

Microsoft Office 2013, 2010, & 2007 — MathType Ribbon Tab in Word and PowerPoint: MathType takes full advantage of Office's Ribbon User Interface making it easier than ever to do equation operations in documents and presentations. New equation numbering and browse features work with all Word equation types.

Microsoft Office 2003 and XP (2002) — MathType Toolbar and Menu in Word and PowerPoint: MathType adds a toolbar and menu to Microsoft Word and PowerPoint, allowing quick access to its features and powerful commands to do equation numbering, produce greatlooking math web pages, presentations, and much more.

Find Symbols: MathType's Insert Symbol dialog allows you to explore the available symbols and insert them with a click or keystroke.
What's New
Here are some of the major new features in MathType 6.9. To learn more about them, visit our Full Feature List.

Now supports Microsoft Office 2013 and Office 365:

Office 2013 and Office 365: MathType 6.9 is fully compatible with Office 2013 and Office 365 installed on Windows 7 and 8 computers.

Office 2010, 2007, 2003, and XP: MathType 6.9 is fully compatible.

Office Web Apps, Office Mobile, and Office RT: MathType equations cannot be edited in these Office versions but equations created in other versions of Office will display and print

Office 32 and 64bit: MathType 6.9 is compatible with both 32 and 64bit versions of Office.

Compatibility with 700+ applications and websites: Connexions, Desire2Learn, Stack Exchange, and 73+ other applications and websites join Microsoft Office, Apple iWork, Adobe InDesign, and hundreds of others that work with MathType! Check out Works With... to see if your applications are compatible.

MathPage now supports MathJax: Our MathPage™ technology now has the option to publish your Word documents as web pages with MathML equations displayed using MathJax technology.

Windows 8 compatibility: MathType 6.9 works on Windows 8, Windows 7, Vista, and XP operating systems. MathType is not compatible with Windows RT.
MathType 6.9 equations are compatible with MathType 6.x and 5.x equations so you can continue to work with other MathType users even if they haven't upgraded yet. When you upgrade to MathType 6.9 any changes you've made in your installed version of MathType, including keyboard shortcuts, toolbars, preferences, etc. will be retained.