StringFreeQ (Built-in Mathematica Symbol)

StringFreeQ["string", patt] yields True if no substring in " string" matches the string expression patt, and yields False otherwise. StringFreeQ["string", {patt_1, patt_2, ...

StringReplacePart (Built-in Mathematica Symbol)

StringReplacePart["string", " snew", {m, n}] replaces the characters at positions m through n in " string" by " snew". StringReplacePart["string", " snew", {{m_1, n_1}, {m_2, ...

SyntaxInformation (Built-in Mathematica Symbol)

SyntaxInformation[f] gives information used to generate syntax coloring and other advisories when f[...] is entered as input.

SystemDialogInput (Built-in Mathematica Symbol)

SystemDialogInput["type"] brings up an interactive system dialog and returns the value chosen in the dialog. SystemDialogInput["type", init] uses init as the initial setting ...

TagBox (Built-in Mathematica Symbol)

TagBox[boxes, tag] is a low-level box construct that displays as boxes but maintains tag to guide the interpretation of boxes on input.

TaggingRules (Built-in Mathematica Symbol)

TaggingRules is an option for selections that specifies a list of strings to be associated with a selection.

Times (Built-in Mathematica Symbol)

x*y*z, x*y*z, or x y z represents a product of terms.

TrigExpand (Built-in Mathematica Symbol)

TrigExpand[expr] expands out trigonometric functions in expr.

While (Built-in Mathematica Symbol)

While[test, body] evaluates test, then body, repetitively, until test first fails to give True.

Combinatorial Functions (Mathematica Tutorial)

Combinatorial functions. The factorial function n! gives the number of ways of ordering n objects. For non-integer n, the numerical value of n! is obtained from the gamma ...