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Indexing A Value
Syntax $th index$$

Description
This command is used for displaying an index in math mode and in front of the letters th. The text index does not contain any $ characters and is displayed in math mode (without delimiters). In addition, leading and trailing white space in index is ignored. For example,
 
	The $th i$$ element of $math%x%$$
results in the following output
     
The i-th element of x
Input File: math.omh