CTAN update: xint
Date: April 16, 2013 3:59:48 PM CEST
the daemon cheerfully reports:
> Name of contribution: xint
> Author's name: Jean-François Burnol
> Package version: 1.03
> Location on CTAN: macros/generic/xint/
> Summary description: Expandable operations on long numbers
> License type: lppl
>
> Announcement text given by the package's contributor:
> ----------------------------------------------------------------------
> version 1.03 of xint (2013/04/14)
>
> The xint bundle has two new components:
> xintfrac.sty Expandable operations on fractions
> xintseries.sty Expandable partial sums with xint package
>
> xintfrac.sty extends the macros of xint.sty to apply to
> fractions of arbitrary sizes (please don't type in numerators
> or denominators with more than 2147483639 digits, if I may ask).
>
> As with xint.sty, all computations are done in a manner
> compatible with expansion-only context. The computations are
> always done exactly and when printing a fraction with an
> asked-for given number of digits, all digits are exact.
>
> xintseries.sty provides some basic functionality to compute
> partial sums of series or power series. The computations may be
> done exactly or with a truncation at a given number of digits
> after the decimal point.
>
> There have been only some changes to the original xint.sty
> macros: in particular, the division is a bit faster, and the
> multiplication is a bit slower on less than 50 digits numbers as
> it now decides by itself what is the probable best order for the
> inputs ; this leads to potential significant speed gains when one
> of the number is much longer than the other. It was also crucial
> for the calculus with fractions as the choice of the best order
> can not be guessed in advance.
>
> The documentation has been revised and enlarged. The traditional
> Machin algorithm to compute pi is illustrated. Of course, recall
> that this is all done without any memory assignments, purely by
> macro expansion, and xintseries is thus no threat to the
> computing software industry.
>
> All components of the xint bundle may be used either with Plain
> TeX or with LaTeX.
>
> Please report bugs to the author.
thanks for the upload; i've installed the new version, and updated the
catalogue repository.
> Users may view the package catalogue entry at
> http://www.ctan.org/pkg/xint
> or they may browse the package directory at
> http://mirror.ctan.org/macros/generic/xint/
Robin Fairbairns
For the CTAN team
xint – Expandable arbitrary precision floating point and integer operations
The xint bundle main modules are:
- xinttools
- utilities of independent interest such as expandable and non-expandable loops,
- xintcore
- expandable macros implementing addition, subtraction, multiplication, division, and powers for arbitrarily long integers,
- xint
- extension of xintcore,
- xintfrac
- extends the scope of xint to decimal numbers, to numbers using scientific notation and also to (exact) fractions,
- xintexpr
- provides expandable parsers of numeric expressions using the standard infix notations, parentheses, built-in functions, user definable functions and variables (and more ...) which do either exact evaluations (also with fractions) or floating point evaluations under a user chosen precision.
Further modules of the bundle are:
xintkernel (support macros for all the bundle constituents),
xintbinhex (conversion to and from hexadecimal and binary bases),
xintgcd (provides gcd() and lcm() functions to xintexpr),
xintseries (evaluates numerically partial sums of series and
power series with fractional coefficients), and
xintcfrac (dedicated to the computation and display of continued fractions).
All computations are compatible with expansion-only context.
The packages may be used with Plain TeX, LaTeX, or (a priori) any other macro format built upon TeX.
| Package | xint |
| Version | 1.4m 2022-06-10 |
| Copyright | 2013–2022 Jean-François Burnol |
| Maintainer | Jean-François Burnol |