RandomSample[{e_1, e_2, ...}, n] gives a pseudorandom sample of n of the e_i.RandomSample[{w_1, w_2, ...} -> {e_1, e_2, ...}, n] gives a pseudorandom sample of n of the e_i ...

You can import spreadsheets created in a variety of formats to take advantage of Mathematica 's rich data manipulation and visualization capabilities.

You may find it useful to use one or more rules with an expression several times. Mathematica provides functions that let you iterate when using rules with expressions. In ...

Mathematica allows you to customize your 2D and 3D graphics through a variety of options.

There will be times when you want to stop Mathematica in the middle of a computation. You may have asked Mathematica to do something that you did not intend or that is taking ...

Mathematica supports operations on matrices of any size and has a range of input methods appropriate for different needs, from small formatted matrices via keyboard or ...

Matrices are represented in Mathematica with lists. They can be entered directly with the { } notation, constructed from a formula, or imported from a data file. Mathematica ...

Mathematica includes functionality to factor polynomials symbolically.

Even simple-looking limits are sometimes quite complicated to compute. Mathematica provides functionality to evaluate several kinds of limits.

Mathematica provides an extensive, straightforward set of tools to control the appearance of your charts. Whether you are creating chart legends with the symbolic wrapper ...