Latex mathematical symbols the more unusual symbols are not dened in base latex (nfss) and require usepackageamssymb 1 greek and hebrew letters beta lambda rho varepsilon gamma upsilon chi mu sigma varkappa lambda xi delta nu tau varphi omega. , are commonly used for inverse hyperbolic trigonometric functions (area hyperbolic functions), even though they are misnomers, since the prefix arc is the abbreviation for arcus, while the prefix ar stands for area. Html page 1 of 9 latex math symbols the following tables are extracted from the not so short introduction to latex2e, aka. Latex2e in 90 minutes, by tobias oetiker, hubert partl, irene hyna, and elisabeth schlegl. I tried to write a sentence which includes the -symbol using text , but the function that the -symbol has in latex seems to block me from using it in a normal text sentence. Documentclass article usepackage utf8 inputenc begin document maketitle text i cant use the.