You can do arithmetic with Mathematica just as you would on an electronic calculator. This is the sum of two numbers. Here the / stands for division, and the ^ stands for ...

Definitions such as f[x_]=x^2 specify values for functions. Sometimes, however, you need to specify general properties of functions, without necessarily giving explicit ...

"Manipulating Elements of Lists" shows how you can pick out elements of lists based on their positions. Often, however, you will need to select elements based not on where ...

Whether it is for importing, exporting, or other operations, Mathematica must know where to look for files on your computer before it can use them. There are a number of ...

You can search for Mathematica help from within Mathematica or on the Wolfram Research websites. The complete documentation is available in every copy of Mathematica as well ...

Xor[e_1, e_2, ...] is the logical XOR (exclusive OR) function. It gives True if an odd number of the e_i are True, and the rest are False. It gives False if an even number of ...

Mathematica 8 introduces interactive content delivered by Wolfram|Alpha directly into your documents. Additionally, Mathematica 8 extends the existing set of interface ...

Mathematica supports state-of-the-art splines for use both in graphics and computational applications. Mathematica allows not just cubic splines, but splines of any ...

AcyclicGraphQ[g] yields True if the graph g is an acyclic graph and False otherwise.

expr_1; expr_2; ... evaluates the expr_i in turn, giving the last one as the result.