Algebra`PolynomialContinuedFractions` was available as an add-on package in previous versions of Mathematica and is now available on the web at ...

Algebra`ReIm` was available as an add-on package in previous versions of Mathematica and is now available on the web at library.wolfram.com/infocenter/MathSource/6759.

MathieuCharacteristicB[r, q] gives the characteristic value b_r for odd Mathieu functions with characteristic exponent r and parameter q.

In most cases, you want the head f of a Mathematica expression like f[x] to be a single symbol. There are, however, some important applications of heads that are not symbols. ...

Algebraic is now available as the newly added built-in Mathematica kernel function AlgebraicNumber. ToCommonField and ToNumberFieldElement are now available as the newly ...

In many cases, you will find it convenient to communicate with external programs at a high level, and to exchange structured data with them. On almost all computer systems, ...

JacobiSN[u, m] gives the Jacobi elliptic function sn(u | m).

LibraryUnload[lib] unloads all functions that have been loaded from a Wolfram Library, then it unloads the library.

LibraryFunctionError[name, code] represents an error returned from a LibraryFunction.

New function SemialgebraicComponentInstances has been added to the built-in Mathematica kernel.