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# Math Mode

LATEX has a special mode which produces pretty mathematical expressions. The simplest manifestation of this is for a single letter; If you have a graph G it is pleasing to refer to it as G as opposed to G. You may accomplish this by typing $G$. The pair of $'s are what delimit math mode. Expressions inside are interpreted as math expressions, and text is italicized. Most greek letters and ugly math symbols have special LATEXsymbols that consist of a backslash followed by some word. I.e. the symbol for alpha () is \alpha  Some other examples are $ \forall \ \cap \ \heartsuit \ \oplus $ which produces: Note that the string of math symbols is surrounded by two$'s. Anything between the $s are interpreted as math notation. Note the backslash- space's inserted to cause space between the symbols. A list of all of these and many more appears on pp. 40-46 of the LATEX manual. These are very important pages. Other expressions that you will want are subscripts and superscripts. To produce xi and xi you type: $x_{i}$and$x^{i}$.  Things can get more complicated: $x^{x^{2} + y_{y^{3}}}$ yields xx2 + yy3 Here are some more examples: is a matching if . They were produced by: $x^{2} + y_{i} \geq z_{i} \forall \ x^{2}M \oplus M^{*}$is a matching if$u \in S\$.
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Finally, there are macros for writing programs, please use them. An example is given in the template file.

Next: Running LATEX Up: No Title Previous: Figures
Yishay Mansour
1999-10-24