HoldRest is an attribute which specifies that all but the first argument to a function are to be maintained in an unevaluated form.

Continue[] exits to the nearest enclosing Do, For, or While in a procedural program.

If you experience internet connectivity problems, such as trouble using Mathematica's integrated data functions, try following the troubleshooting techniques described below. ...

Break[] exits the nearest enclosing Do, For, or While.

MatchQ[expr, form] returns True if the pattern form matches expr, and returns False otherwise.

$ControlActiveSetting is a symbol whose value is True if it is evaluated while a control is active, or in certain other previewing situations.

Mathematica provides important functionality through accessing the internet. Most Mathematica functions that provide computable data operate by loading data over the ...

Mathematica's symbolic character allows a powerful unification of the notion of conditionals in programming and in mathematics.

Compiled is an option for various numerical and plotting functions which specifies whether the expressions they work with should automatically be compiled.

Return[expr] returns the value expr from a function. Return[] returns the value Null.