PermutationMax[perm] returns the largest integer moved by the permutation perm.

PermutationSupport[perm] returns the support of the permutation perm.

Rational is the head used for rational numbers.

i ;; j represents a span of elements i through j.i ;; represents a span from i to the end.;; j represents a span from the beginning to j.;; represents a span that includes ...

SymmetricGroup[n] represents the symmetric group of degree n.

There are many detailed differences between different kinds of computer systems. But one of the important features of Mathematica is that it allows you to work and create ...

You can think of an expression like f[x] as being formed by applying an operator f to the expression x. You can think of an expression like f[g[x]] as the result of composing ...

ImageCooccurrence[image, n] gives the n*n cooccurrence matrix for image.ImageCooccurrence[image, n, ker] computes a cooccurrence matrix for arbitrary spatial relationships ...

Mathematica uses its knowledge of the symbolic structure of your input to display it with semantics-directed syntax coloring and other forms of styling. You can use options ...

Version 7.0 introduces built-in zero-configuration parallel computing. Taking full advantage of Mathematica's unique symbolic architecture, Version 7.0 provides an ...