How do I typeset functions and operators, such as max or det, that Math does not know about?

How do I typeset functions, such as max, det, that Math does not know about?

Math has a number of standard functions built-in, such as cos, log etc.

These functions are typeset in an upright shape according to typographical traditions.

To typeset other functions this way you can simply preceed the function with func.

Example:
To typeset max(a,b) you should enter func max(a,b).

If you want to use max as an operator, like lim, you can use csub to get a centered subscript: func max csub {x in S} f(x).