HoldFirst (Built-in Mathematica Symbol)

HoldFirst is an attribute which specifies that the first argument to a function is to be maintained in an unevaluated form.

AbsoluteTiming (Built-in Mathematica Symbol)

AbsoluteTiming[expr] evaluates expr, returning a list of the absolute number of seconds in real time that have elapsed, together with the result obtained.

HoldAllComplete (Built-in Mathematica Symbol)

HoldAllComplete is an attribute which specifies that all arguments to a function are not to be modified or looked at in any way in the process of evaluation.

HoldForm (Built-in Mathematica Symbol)

HoldForm[expr] prints as the expression expr, with expr maintained in an unevaluated form.

Interpretation (Built-in Mathematica Symbol)

Interpretation[e, expr] represents an object that displays as e, but is interpreted as the unevaluated form of expr if supplied as input. Interpretation[{x = x_0, y = y_0, ...

OwnValues (Built-in Mathematica Symbol)

OwnValues[x] gives the rule corresponding to any ownvalue defined for the symbol x.

Information (Built-in Mathematica Symbol)

Information[symbol] prints information about a symbol.

With (Built-in Mathematica Symbol)

With[{x = x_0, y = y_0, ...}, expr] specifies that in expr occurrences of the symbols x, y, ... should be replaced by x_0, y_0, ....

Check (Built-in Mathematica Symbol)

Check[expr, failexpr] evaluates expr, and returns the result, unless messages were generated, in which case it evaluates and returns failexpr. Check[expr, failexpr, ...

Timing (Built-in Mathematica Symbol)

Timing[expr] evaluates expr, and returns a list of the time in seconds used, together with the result obtained.