Switch (Built-in Mathematica Symbol)

Switch[expr, form_1, value_1, form_2, value_2, ...] evaluates expr, then compares it with each of the form_i in turn, evaluating and returning the value_i corresponding to ...

TraceDialog (Built-in Mathematica Symbol)

TraceDialog[expr] initiates a dialog for every expression used in the evaluation of expr. TraceDialog[expr, form] initiates a dialog only for expressions which match form. ...

TrackedSymbols (Built-in Mathematica Symbol)

TrackedSymbols is an option to Refresh, Manipulate, and related functions that specifies which symbols should trigger updates when their values are changed.

TransformationFunctions (Built-in Mathematica Symbol)

TransformationFunctions is an option for Simplify and FullSimplify which gives the list of functions to apply to try to transform parts of an expression.

ValueQ (Built-in Mathematica Symbol)

ValueQ[expr] gives True if a value has been defined for expr, and gives False otherwise.

ViewCenter (Built-in Mathematica Symbol)

ViewCenter is an option for Graphics3D and related functions which gives the scaled coordinates of the point which should appear at the center of the final image.

Write (Built-in Mathematica Symbol)

Write[channel, expr_1, expr_2, ...] writes the expressions expr_i in sequence, followed by a newline, to the specified output channel.

$ModuleNumber (Built-in Mathematica Symbol)

$ModuleNumber gives the current serial number to be used for local variables that are created.

$PrePrint (Built-in Mathematica Symbol)

$PrePrint is a global variable whose value, if set, is applied to every expression before it is printed.

Building Lists from Functions (Mathematica Tutorial)

Making lists from functions. This makes a list of 5 elements, each of the form p[i]. Here is another way to produce the same list.