Finding elements that match a pattern. This gives the elements of the list which match the pattern x^_. Here is the total number of elements which match the pattern.

Tensors are mathematical objects that give generalizations of vectors and matrices. In Mathematica, a tensor is represented as a set of lists, nested to a certain number of ...

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

Mathematica provides a full suite of tools needed for the classical analysis and design of control systems, leveraging Mathematica's hybrid symbolic-numeric arithmetic ...

Applying transformation rules. The replacement operator /. (pronounced "slash-dot") applies rules to expressions. You can give a list of rules to apply. Each rule will be ...

Mathematica can export dynamic visualizations to common multimedia formats, as well as being able to import animated graphics and other data.

Importing and exporting lists and tables of data. This exports a list of data to the file out1. Here are the contents of the file.

CylindricalDecomposition[ineqs, {x_1, x_2, ...}] finds a decomposition of the region represented by the inequalities ineqs into cylindrical parts whose directions correspond ...

Here are a few examples that demonstrate building user interfaces with the GUIKit framework. Hello World—The classic simple application written with GUIKit. Simple Slider

When you generate a very large output expression in Mathematica, you often do not want to see the whole expression at once. Rather, you would first like to get an idea of the ...