CTAN Comprehensive TeX Archive Network

CTAN update (delayed announcement) xint

Date: December 23, 2013 10:25:15 AM CET
the daemon pronounced: > The following information was provided by the package's contributor. > > Name of contribution: xint > Author's name: Jean-François Burnol > Package version: 1.09i > Location on CTAN: macros/generic/xint/ > Summary description: Expandable operations on long numbers > License type: lppl > > > Announcement text given by the package's contributor: > ---------------------------------------------------------------------- > 1.09i 2013/12/18 > > * \xintiiexpr is a variant of \xintexpr which is optimized to > deal only with (long) integers, / does a euclidean quotient. > > * \xintnumexpr has been renamed \xintiexpr, (former name kept > but destined to be removed) \xintiiexpr is actually closer to > \numexpr, but with integer division the euclidean one. > > * the \xintexpr parser automatically inserts \number in front of > count, dimen, and skip registers/variables, or \numexpr, etc.. > expressions, with a tacit multiplication implied if following a > number or parenthesized expression. > > * \xintAssign admits an optional argument to specify the > expansion type to be used [] (none), [o] (once), [oo] (twice), > [f] (full), ... , (the default is [e] which means to use \edef). > > * xinttools defines (if the names have not already been > assigned) \odef, \oodef, \fdef: \oodef which expands twice the > macro replacement text is a faster alternative to \edef (when > the expansion gives hundreds of digits). > > * some across the board slight efficiency improvement as a > result of modifications of various types to ``fork'' macros > and ``branching conditionals'' which are used internally. > ---------------------------------------------------------------------- thanks for the upload; i installed the new version, and updated the catalogue repository. Robin Fairbairns For the CTAN team

Xint – Expandable arbitrary precision floating point and integer operations

Loading xintexpr provides \xinteval and \xintfloateval.

\xintfloateval evaluates numerical expressions. The floating point precision defaults to 16 decimal digits and can be set by user. Trigonometry, exponential and logarithms are implemented up to a maximal precision of 62 decimal digits.

\xinteval computes exactly with integers, fractions, and decimal numbers or numbers in scientific notation. Note though that multiplying two floating point numbers will about double the number of digits, and so on, because the algebra is done exactly.

Both are compatible with expansion-only context.

Loading xintexpr imports automatically various other modules that it depends upon. Among them:

  • xinttools: utilities such as expandable and non-expandable loops,
  • xint: macros implementing in particular the basic operations on arbitrarily long integers,
  • xintbinhex: conversions between decimal and binary, octal, or hexadecimal bases for arbitrarily long integers,
  • xintfrac: macros implementing in particular the basic operations on arbitrarily large fractions, decimal numbers, or numbers in scientific notation.

Further modules of independent interest include xintgcd, xintseries and xintcfrac.

You can use xintexpr (and the other components) with (via \usepackage) or also with Plain , Op, or Cont (via \input xintexpr.sty).

All the components are documented in the file xint.pdf, which also contains the commented source code.

PackageXint
Version1.4o 2025-09-06
Copyright2013–2022, 2025 Jean-François Burnol
MaintainerJean-François Burnol

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