User, developer, and accessibility info on math editing/display in Microsoft Office and Windows. New features and specifications of the RichEdit editor. Getting OfficeMath onto web apps
In Word, PowerPoint, OneNote and RichEdit, you can enclose text in a rectangle by putting the text into a math “boxed formula” object. To try this out, type alt+= to enter a math zone and then \rect(a+b)<space>. This displays as as
The “\rect(a+b)” is the UnicodeMath representation of this boxed formula. In MathML, the boxed ...