CTAN Comprehensive TeX Archive Network

CTAN update: xint

Datum: 28. Februar 2014 16:59:22 MEZ
ean-François Burnol submitted an update to the xint package. Version number: 1.09m License type: lppl Summary description: Expandable operations on long numbers Announcement text:
Release 1.09m: * xintcfrac: \xintFGtoC finds the initial partial quotients which are common to two decimal numbers (or fractions): \xintFGtoC{3.141592653}{3.141592654} -> {3}{7}{15}{1} \xintFGtoC{3.141592653589}{3.141592653590} -> {3}{7}{15}{1}{292}{1}{1}{1}{2}{1} \xintGGCFrac typesets generalized continued fractions, not assuming that the coefficients are numeric quantities. * xinttools: \xintKeep keeps the first N or last N elements of a list (sequence of braced items); \xintTrim cuts out either the first N or the last N elements from a list. Some other minor changes.
This package is located at http://mirror.ctan.org/macros/generic/xint More information is at http://www.ctan.org/pkg/xint We are supported by the TeX Users Group http://www.tug.org . Please join a users group; see http://www.tug.org/usergroups.html .
Thanks for the upload. For the CTAN Team Manfred Lotz

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.

Paketxint
Version1.4o 2025-09-06
Copyright2013–2022, 2025 Jean-François Burnol
BetreuerJean-François Burnol

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