http://chihaozhang.com/teaching/Comb2024/lec6/lec6.html Web现在假设在偏序集上我们有两个函数 \(f, g: P\to\^R\) ，且满足 \(f(x) = \sum_{y\colon y\ge x} g(y)\) 。 这个关系用关联代数写就是 \(f=\zeta g\) 。 所谓的莫比乌斯反演就是等式 \[ g = \mu f. \] 类似于容斥原理，在实践中，我们希望计算某个函数 \(g\) ，但是它是比较难算的。 如果能找到函数 \(f\) ，能够满足 \(f ...

what is the difference among \let, \def and \newcommand?

Web12 feb. 2009 · \newcommand* behaves like \newcommand, but it defines a command that is not long; i.e., it does not accept empty lines or \par in its argument. In TeX terms, \def … Webdecided that \newcommand would be 'long'. When the LaTeX team took over for LaTeX2e, they decided that you would need to add the modifier * to prevent this: … gallagher mygov audit release

TeX/def - Wikibooks, open books for an open world

WebThese commands define (or redefine) a command. cmdThe name of the new or redefined command. letters or a \followed by a single nonletter. For \newcommandthe name must … WebIf you really want a command like \reversed{mandatory}[optional], you can do it like so.First, you define a command which takes a required argument, stores it in a macro, and then … Web1 aug. 2024 · \renewcommand for commands defined with \def macros 5,576 if a command created with \def is "context sensitive" (or "delimited"), it can't be redefined with … black bull golf course yarrawonga