All six trigonometric functions are represented as built‐in functions in Mathematica. Following Mathematica's general naming convention, the StandardForm function names are simply capitalized versions of the traditional mathematics names. Here is a list trigFunctions of the six trigonometric functions in StandardForm.
Here is a list trigFunctions of the six trigonometric functions in TraditionalForm.
Mathematica also knows the most popular forms of notations for the trigonometric functions that are used in other programming languages. Here are three examples: CForm, TeXForm, and FortranForm.