CTAN update: xint
Bug fixes - squaring macro \xintSqr from xintfrac.sty was broken due to a misspelled sub-macro name. Dates back to 1.1 release of 2014/10/28 :-((. - 1.2c's fix to the subtraction bug from 1.2 introduced another bug, which in some cases could create leading zeroes in the output, or even worse. This could invalidate other routines using subtractions, like \xintiiSquareRoot. Improvements and new features - functions binomial, pfactorial and factorial in both integer and float versions. - faster implementation and increased accuracy of float power macros. - faster implementation of both integral and float square root macros. - the float square root achieves _correct_ (aka _exact_) rounding in arbitrary precision. - modified behaviour for the \xintPFloat macro, used by \xintthefloatexpr to prettify its output. It now opts for decimal notation if and only if scientific notation would use an exponent between -5 and 5 inclusive. The zero value is printed 0. with a dot. - the documentation offers a more precise (and accurate) discussion of floating point issues. - various under-the-hood code improvements; the floatexpr operations are chained in a faster way, from skipping some unneeded parsing on results of earlier computations. The absence of a real inner data structure for floats (incorporating their precisions, for one) is however still a bit hair rising: currently the lengths of the mantissas of the operands are computed again by each float macro or expression operation. - renewed desperate efforts at improving the documentation by random shuffling of sections and well thought additions; cuts were considered and even performed. See CHANGES.{html,pdf} for more.
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 User Groups. Please join a users group; see http://www.tug.org/usergroups.html .
Thanks for the upload. For the CTAN Team Ina Dau
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 LaTeX (via \usepackage) or also with Plain TeX, OpTeX, or ConTeXt (via \input xintexpr.sty).
All the components are documented in the file xint.pdf, which also contains the commented source code.
| Package | xint |
| Version | 1.4o 2025-09-06 |
| Copyright | 2013–2022, 2025 Jean-François Burnol |
| Maintainer | Jean-François Burnol |