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.

Sqrt (Built-in Mathematica Symbol)

Sqrt[z] or Sqrt[z] gives the square root of z.

$MachineEpsilon (Built-in Mathematica Symbol)

$MachineEpsilon gives the difference between 1.0 and the next-nearest number representable as a machine-precision number.

Deleting Data (DatabaseLink Tutorial)

SQLDelete deletes data from a database. An alternative, using raw SQL, is described in "Deleting Data with Raw SQL". If you find that the examples in this tutorial do not ...

Function Approximations Package (Function Approximations Package Tutorial)

This loads the package. Economized rational approximations. A Pad é approximation is very accurate near the center of expansion, but the error increases rapidly as you get ...

CoefficientArrays (Built-in Mathematica Symbol)

CoefficientArrays[polys, vars] gives the arrays of coefficients of the variables vars in the polynomials polys.

EdgeQ (Built-in Mathematica Symbol)

EdgeQ[g, e] yields True if e is an edge in the graph g and False otherwise.

QPochhammer (Built-in Mathematica Symbol)

QPochhammer[a, q, n] gives the q-Pochhammer symbol (a; q) n.QPochhammer[a, q] gives the q-Pochhammer symbol (a; q) \[Infinity].QPochhammer[q] gives the q-Pochhammer symbol ...

NResidue (Numerical Calculus Package Symbol)

NResidue[expr, {z, z_0}] numerically finds the residue of expr near the point z = z_0.

Data Type Mapping (DatabaseLink Tutorial)

One of the most important issues for using a database is the conversion of data as it is stored and retrieved from a database. This tutorial will discuss how Mathematica ...