CTAN Comprehensive TeX Archive Network

CTAN update: xint

Date: June 18, 2018 9:32:18 PM CEST
Jean-François Burnol submitted an update to the xint package. Version number: 1.3c 2018-06-17 License type: lppl1.3c Summary description: Expandable operations on long numbers Announcement text:
Maintenance release: - documentation improvements (e.g. regarding \xintUniformDeviate). - sourcexint.pdf is better hyperlinked and with indices. - a toggle is provided for \xintdefvar, \xintdeffunc et. al. to make definitions with global scope. - both syntaxes \xintdefvar foo := expression; and \xintdefvar foo = expression; are now accepted, and in the former case the colon may have any (reasonable) catcode. This was already the case for \xintdeffunc and variants. - due to some work commit which made it to 1.3 release, xintfrac.sty (hence xintexpr.sty also) loaded xintgcd.sty automatically. Removed.
This package is located at http://mirror.ctan.org/macros/generic/xint More information is at https://www.ctan.org/pkg/xint
Thanks for the upload. For the CTAN Team Manfred Lotz We are supported by the TeX user groups. Please join a users group; see http://www.tug.org/usergroups.html .

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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