Other ways to place symbols over Relation symbols are shown In the next example, \# and \top (both Ord by default) are changed into a Rel and an Op.ġ \usepackage b \ ] The symbol’s class can be explicitly changed by using the commands \mathord, \mathop, \mathbin, \mathrel, \mathopen, \mathopen, and \mathpunct. The set-up for mathematics puts each symbol into one of these clases: Ordinary (Ord), Operator (Op), Binary (Bin), Relation (Rel), Opening (Open), Closing (Close), or Punctuation (Punct). This classification also makes some finer distinctions, for example, between accents and simple symbols and in breaking the enormous list of Relation symbols into several tables.
In particular, TeX’s math formatter adjusts the horizontal space on either side of each symbol according to its mathematical class. In math typography, this classification defines the formula layout. The primary classification of math symbols is related to their meaning in technical usage. If nesessary, further classification is given by markings: ( StM) means a symbol from stmaryrd when the table also contains symbols from other packages ( kernel) marks symbols that are available in standard LaTeX but only by combining two or more glyphs, whereas a single glyph exists in the indicated package and ( var) marks “Alphabetic symbols” (of type \mathalpha) that change appearance when used within the scope of a Symbols with command names in blue require loading either amsmath, amssymb, or stmaryrd. Symbols with command names in black are available in standard LaTeX. The tables indicate which extra packages need to be loaded to use each symbol command. It provides extra symbols for fields such as functional programming, process algebra, domain theory, linear logic and many more. This package extends Computer Modern and AMS symbol font collections and should normally be loaded in addition to amssymb, but always after it. They also include the supplementary symbols from the St Mary Road font designed by Allan Jeffrey and Jeremy Gibbons. The tables in this article list the large range of math symbols provided by the AMS-LATEX packages, including commands to access each symbol. Letters, numerals, and other Ordinary symbols
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