On Latexwiki.org you will find all the symbols needed to write in latex, as well as tutorials and examples. If you are a latex user or if you are learning latex, this is the website for you.
LaTeX is a text composition system, aimed at creating written documents that present a high typographic quality. Due to its characteristics and possibilities, it is used especially intensively in the generation of scientific articles and books that include , among other elements, mathematical expressions. LaTeX is made up of a large set of TeX macros. It is widely used for the composition of academic articles, theses and technical books, given that the typographic quality of the documents produced in LaTeX is considered adequate to the needs of a leading scientific publisher.