HoldAll (Built-in Mathematica Symbol)

HoldAll is an attribute which specifies that all arguments to a function are to be maintained in an unevaluated form.

Item (Built-in Mathematica Symbol)

Item[expr, options] represents an item within constructs such as Grid, Overlay, and Manipulate that displays with expr as the content, and with the specified options applied ...

LegendreQ (Built-in Mathematica Symbol)

LegendreQ[n, z] gives the Legendre function of the second kind Q_n (z). LegendreQ[n, m, z] gives the associated Legendre function of the second kind Q_n^m(z).

MouseAppearance (Built-in Mathematica Symbol)

MouseAppearance[expr, graphic] changes the mouse cursor to appear as graphic when the mouse pointer is in the area where expr is displayed.MouseAppearance[expr, graphic, {x, ...

Mouseover (Built-in Mathematica Symbol)

Mouseover[expr, over] represents an object that displays as over when the mouse pointer is over it, and as expr otherwise.

Or (Built-in Mathematica Symbol)

e_1 || e_2 || ... is the logical OR function. It evaluates its arguments in order, giving True immediately if any of them are True, and False if they are all False.

TeXForm (Built-in Mathematica Symbol)

TeXForm[expr] prints as a TeX version of expr.

TransferFunctionPoles (Built-in Mathematica Symbol)

TransferFunctionPoles[tf] gives a matrix of roots of the denominators in the TransferFunctionModel object tf.

$MachineEpsilon (Built-in Mathematica Symbol)

$MachineEpsilon gives the difference between 1.0 and the next-nearest number representable as a machine-precision number.

Blocks and Local Values (Mathematica Tutorial)

Modules in Mathematica allow you to treat the names of variables as local. Sometimes, however, you want the names to be global, but values to be local. You can do this in ...