Manipulating Lists by Their Indices (Mathematica Tutorial)

Getting parts of lists. This gives a list of parts 1 and 3. Here is a nested list.

PadRight (Built-in Mathematica Symbol)

PadRight[list, n] makes a list of length n by padding list with zeros on the right. PadRight[list, n, x] pads by repeating the element x. PadRight[list, n, {x_1, x_2, ...}] ...

PassEventsDown (Built-in Mathematica Symbol)

PassEventsDown is an option to EventHandler which specifies whether events handled by a particular event handler should be passed down to event handlers nested inside.

ReleaseHold (Built-in Mathematica Symbol)

ReleaseHold[expr] removes Hold, HoldForm, HoldPattern, and HoldComplete in expr.

Map a Function over a List (Mathematica How To)

Mathematica includes many powerful operations for working with lists. It is often desirable to map a function onto each individual element in a list. While listable functions ...

MorphologicalComponents (Built-in Mathematica Symbol)

MorphologicalComponents[image] gives an array in which each pixel of image is replaced by an integer index representing the connected foreground image component in which the ...

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, ....

Special Forms of Assignment (Mathematica Tutorial)

Particularly when you write procedural programs in Mathematica, you will often need to modify the value of a particular variable repeatedly. You can always do this by ...

Manipulate (Built-in Mathematica Symbol)

Manipulate[expr, {u, u_min, u_max}] generates a version of expr with controls added to allow interactive manipulation of the value of u. Manipulate[expr, {u, u_min, u_max, ...

Compiled Function Operation (Compiled Function Tools Tutorial)

The Mathematica compiler generates a CompiledFunction expression that contains a sequence of simple instructions for evaluating a Mathematica computation. The compiled ...