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 ...

Basic vector operations. This is a vector in three dimensions. This gives a vector u in the direction opposite to v with twice the magnitude.

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 ...

FiniteGroupData[name, " property"] gives the value of the specified property for the finite group specified by name.FiniteGroupData["class"] gives a list of finite groups in ...

The functions described here are among the most commonly used continuous univariate statistical distributions. You can compute their densities, means, variances, and other ...

Images are an important standard data structure, tightly integrated with the Mathematica front end and kernel. Image objects are created by default when you import any file ...

SDTS GIS format. Geographic information standard used by the U.S. Geological Survey. Used for archiving and exchanging maps and map data. SDTS is an acronym for Spatial Data ...