Specifies the logical boxing packaging of mathematical element. For example a boxed object can serve as an operator emulator with or without an alignment point serve as a line break point or be grouped such as not to allow line breaks within. For example the operator should be boxed to prevent line breaks....Creates subscript SetSubscript (string) Creates subscript SetSubSuperscriptOnT...(IMathElement, IMathElement) Creates subscript and superscript on the left...