One of the important features of Mathematica is its ability to give you exact, symbolic, results for computations. There are, however, computations where it is just ...

Functions to pick out pieces of polynomials. Here is an algebraic expression. This gives the coefficient of x in e.

Testing and searching for elements of lists. "Getting Pieces of Lists" discusses how to extract pieces of lists based on their positions or indices. Mathematica also has ...

In doing calculations, you will often need to use previous results that you have got. In Mathematica, % always stands for your last result. Ways to refer to your previous ...

CUDATotal[vec] gives the total of the absolute value of a vector vec.

SQLCatalogNames[conn] returns the names of the catalogs in an SQL connection.

FolkmanGraph returns a smallest graph that is edge-transitive but not vertex-transitive.

GrayGraph returns a 3-regular, 54-vertex graph that is edge-transitive but not vertex-transitive\[LongDash]the smallest known such example.

UnitransitiveGraph returns a 20-vertex, 3-unitransitive graph, discovered by Coxeter, that is not isomorphic to a 4-cage or a 5-cage.

Mathematica supports not only arbitrary arrow graphics, but also a selection of convenient arrow-like characters, that automatically extend when appropriate. Each of these ...