Many believe the best way to TeX for a set of complex mathematical formulas. In particular, thanks to these features, TeX is popular in academic circles, especially among mathematicians and fizikov.TeX can be used for all kinds of text, beginning with a brief letter and ending with the multi-volume books, and TeX was originally created for a more long texts and papers. Many of the big scientific publishers use it for printing or book collection. Special force have set a formula as well as point font.