Sinc (Built-in Mathematica Symbol)

Sinc[z] gives sinc(z).

StruveH (Built-in Mathematica Symbol)

StruveH[n, z] gives the Struve function H n (z).

$RelaxedTypeChecking (JLink Symbol)

$RelaxedTypeChecking is a flag that can be set to True to speed up the validation performed in Mathematica (via pattern tests) on arrays of data being sent as arguments to ...

Create an Image Object (Mathematica How To)

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 ...

Work with Sparse Matrices (Mathematica How To)

Sparse representations of matrices are useful because they do not store every element. If one particular value appears very frequently it can be very advantageous to use a ...

TAR (Mathematica Import/Export Format)

MIME types: application/tar and application/x-tar TAR archive file format. Combines collections of files in a single archive. Popular on Unix systems. Often used in ...

HoldAll (Built-in Mathematica Symbol)

HoldAll is an attribute which specifies that all arguments to a function are to be maintained in an unevaluated form.

ArrayRules (Built-in Mathematica Symbol)

ArrayRules[SparseArray[...]] gives the rules {pos_1 -> val_1, pos_2 -> val_2, ...} specifying elements in a sparse array. ArrayRules[list] gives rules for SparseArray[list].

Associating Definitions with Different ... (Mathematica Tutorial)

When you make a definition in the form f[args]=rhs or f[args]:=rhs, Mathematica associates your definition with the object f. This means, for example, that such definitions ...

Some Notes on Internal Implementation (Mathematica Tutorial)

General issues about the internal implementation of Mathematica are discussed in "The Internals of Mathematica". Given here are brief notes on particular features. These ...