Math Within Paragraphs

REVTeX uses the delimiter $ for any in-line math, e.g., the quantity, , is obtained from the input, $a^z$.

Another example of in-line math is

 output:¯ ... difference between  and
          

		 input:		 ... difference between $langle J_z rangle

		 		 (t)$ and $langle J_z rangle_{rm HF}(t) ...$

Standard mathematical style conventions are followed for in-line math, such as smaller point size for superscripts/subscripts, appropriate use of roman, italic, greek, and script fonts, and the use of special math symbols. See Appendix A for a list of available symbols.

TeX will take care of setting the point size appropriate for variables and numbers in the superscript/subscript position.

TeX makes latin letters within math italic by default. These are commonly used for variables. To get the roman font, commonly used for functions such as exp and erf, use the rm command.

 input:¯  $... {\rm exp}(t^2 - t) ...$ 

		 output: 		   

TeX will assume that you want the superscript or subscript to consist of the first token (generally a single character or command) following the ^{hat} or _{en dash} unless you use curly brackets to delimit the superscript/subscript. It is safest to use the curly brackets if unsure. The curly brackets here also serve to limit the scope of the rm command. Again, don't use any vertical or horizontal motion commands in math.