Urn models have a long history, starting with Laplace suggesting in 1786 that France's population be estimated by an urn-sampling scheme. They are conceptually relatively ...

The unified architecture of Mathematica is highly extensible, allowing you to connect to other systems and programs. Using the MathLink communication protocol, which operates ...

Add/Remove Cell Tags opens a dialog box that allows you to add or remove cell tags associated with the selected cell(s).

Check Spelling opens the Check Spelling dialog box and searches for misspelled words.

Array[f, n] generates a list of length n, with elements f[i]. Array[f, {n_1, n_2, ...}] generates an n_1*n_2*... array of nested lists, with elements f[i_1, i_2, ...]. ...

CreateDirectory["dir"] creates a directory with name dir. CreateDirectory[] creates a directory in the default area for temporary directories on your computer system.

DynamicEvaluationTimeout is an option for displayed objects, cells, and notebooks that specifies the timeout in seconds for any Dynamic computations they contain.

GainMargins[sys] gives the gain margins of the linear time-invariant system sys.

Heads is an option for functions which use level specifications that specifies whether heads of expressions should be included.

ImageAlign[image_1, image_2] returns a version of image_2 that is aligned with image_1.