### Hypertext Help with LaTeX

# Math function symbols

Functions like "log" or "cos" are normally used in math mode. However, in
math mode strings of letters are treated as a product of variables, which
would normally be displayed in math italics rather than a text font which
would be appropriate for these functions. To
get proper display of such functions they are generated with LaTeX commands.
Some of these commands are

`\arccos`
`\arcsin`
`\arctan`
`\cos`
`\cosh`
`\cot`
`\coth`
`\csc`
`\deg`
`\det`
`\dim`
`\exp`
`\gcd`
`\hom`
`\inf`
`\ker`
`\lg`
`\lim`
`\liminf`
`\limsup`
`\ln`
`\log`
`\max`
`\min`
`\sec`
`\sin`
`\sinh`
`\sup`
`\tan`
`\tanh`

Two commands are provided for the "modulus" function
The former would be used to write "a mod b" as
a \bmod b

and the latter, which requires an argument that is displayed in parentheses,
would be used to write "n = i (mod j)" as
n = i \pmod{j}

Related topics:

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Revised: Sheldon Green, 25 April 1995.