## 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

`\bmod``\pmod{}`

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}

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Revised 25 April 1995.