Jean-François Burnol submitted an update to the
xint
package.
Summary description: Expandable operations on long numbers License type: lppl
Announcement text: ----------------------------------------------------------------------
version 1.04 of xint (2013/04/25)
This release has some bug fixes, important improvements in the xintseries package and its documentation, and a new component xintcfrac.sty devoted to continued fractions.
1. bug fixes: xintIrr {0} was a bad one. Apart from that, there were some inaccuracies in the documentation.
2. the base package xint has new commands to help deal in an expandable way with token lists produced by some of the bundle macros. Also, the division routine is a bit faster, and a rounding macro has been added to the xintfrac package.
3. xintseries: a new implementation of xintPowerSeries, based on a Horner scheme, has greatly reduced a problem of denominator build-up. Also, the package has new macros, among them xintRationalSeries is for computing partial sums with general term F(n) where F is a rational function and the macro is given the n->F(n)/F(n-1) function. This is especially designed for series of the exponential type, again to avoid a denominator build-up which made xintSeries and xintPowerSeries inefficient in such situations. The documentation has been correspondingly extended.
4. xintcfrac: this is a new package to deal with matters of continued fractions. For example xintCFrac is like amsmath cfrac apart from a little detail: it first computes the continued fraction corresponding to a given fractional number! (and then feeds cfrac with it; almost all package macros only deal with computations, not typesetting). The package includes commodities to specify the coefficients of the (possibly generalized) continued fraction as function of the index, to compute simple and centered continued fractions, to return the list of all convergents, etc...
The xint.dtx source file self-extracts packages xint.sty, xintgcd.sty, xintfrac.sty, xintseries.sty and xintcfrac.sty (as well as xint.ins).
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Thanks for the upload.
For the CTAN Team Rainer Schöpf