Italicized phrases are presented by surrounding the text with
_underscores_.
In the mathematical formulas, superscripts and subscripts are
represented by surrounding with curly brackets; in the case of
subscripts, the leading bracket is preceded by an underscore, and in the
case of superscripts, it is preceded by a caret. In the simple case of a
single superscripted character, a caret may precede the character
without any brackets. An example is: L_{T}=L_{O}e-^{T/2N}