More than once people say that TEX was designed for mathematical or technical purpose. This maybe true when we remember the reasons why Donald Knuth created TEX. But nowadays there are a lot of examples where TEX was used for publications without any mathematical or technical background. Nevertheless, we have to consider, that writing publications with a lot of mathematical material is one of the important advantages of TEX and it seems that is impossible to know all existing macros and options of (LA)TEX and the several additional packages, especially AMSmath. This is the reason why I tried to collect all important facts in this paper.