Lists as Sets (Mathematica Tutorial)

Mathematica usually keeps the elements of a list in exactly the order you originally entered them. If you want to treat a Mathematica list like a mathematical set, however, ...

Deletable (Built-in Mathematica Symbol)

Deletable is an option for Cell that specifies whether the cell can be deleted interactively using the front end.

Textual Elements in Notebooks (Mathematica Guide)

Mathematica's unified symbolic document architecture makes it possible to have flowing text contain any kind of object—including math, graphics or dynamic elements.

Atomic Elements of Expressions (Mathematica Guide)

All expressions in Mathematica are ultimately built from a small number of distinct types of atomic elements.

NotElement (Built-in Mathematica Symbol)

NotElement[x, dom] or x \[NotElement] dom asserts that x is not an element of the domain dom.NotElement[x_1 | ... | x_n, dom] asserts that none of the x_i are elements of ...

DeleteDirectory (Built-in Mathematica Symbol)

DeleteDirectory["dir"] deletes the specified directory.

DeleteGeneratedCells (Mathematica Front End Token)

"DeleteGeneratedCells" is a front end token that deletes all cells in the notebook that have been produced as output by the kernel.

Two-Dimensional Graphics Elements (Mathematica Tutorial)

Basic two-dimensional graphics elements. Here is a line primitive. This shows the line as a two-dimensional graphics object.

Testing and Searching List Elements (Mathematica Tutorial)

Testing and searching for elements of lists. "Getting Pieces of Lists" discusses how to extract pieces of lists based on their positions or indices. Mathematica also has ...

Import and Export File Elements (Mathematica How To)

Sometimes you may want to work with a specific part of a file instead of all of it. When bringing a file into Mathematica , you can elect to import just individual parts of ...