CTAN update: xint
Date: July 28, 2017 5:30:04 PM CEST
Jean-François Burnol submitted an update to the
xint
package.
Version number: 1.2l 2017-07-26
License type: lppl1.3c
Summary description: Expandable operations on long numbers
Announcement text:
Maintenance release. - The underscore character _ is accepted by the xintexpr parsers as a digit separator. Example: \xinttheiiexpr 123_456_789 * 1111_2222_3333 \relax It is not allowed as _first_ character of a number, as it would then be mis-interpreted as the start of a possible variable name. Only expressions handle it (the space character can also separate digits there), not macros. The LaTeX package bnumexpr will also accept the underscore as digit separator in its upcoming release. - Some refactoring in xintcore for some small efficiency gains. - Some macros were not robust against arguments whose expansion looks forward for some termination (e.g. \number\mathcode`\-), and many more were broken if the inputs used a non-terminated \numexpr, e.g. \xintAdd{\the\numexpr1}{2}. The user manual never said this was legal input, but it was slightly inconvenient. Most macros have now been made robust against such non properly terminated inputs. In expressions though, a \numexpr swallowing the ending \relax is definitely still to be avoided, as the parser absolutely needs to hit against such a token at some point. - A few minor bugfixes, see CHANGES.pdf or CHANGES.html for the details.
This package is located at http://mirror.ctan.org/macros/generic/xint More information is at http://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 .
Maintenance release. - The underscore character _ is accepted by the xintexpr parsers as a digit separator. Example: \xinttheiiexpr 123_456_789 * 1111_2222_3333 \relax It is not allowed as _first_ character of a number, as it would then be mis-interpreted as the start of a possible variable name. Only expressions handle it (the space character can also separate digits there), not macros. The LaTeX package bnumexpr will also accept the underscore as digit separator in its upcoming release. - Some refactoring in xintcore for some small efficiency gains. - Some macros were not robust against arguments whose expansion looks forward for some termination (e.g. \number\mathcode`\-), and many more were broken if the inputs used a non-terminated \numexpr, e.g. \xintAdd{\the\numexpr1}{2}. The user manual never said this was legal input, but it was slightly inconvenient. Most macros have now been made robust against such non properly terminated inputs. In expressions though, a \numexpr swallowing the ending \relax is definitely still to be avoided, as the parser absolutely needs to hit against such a token at some point. - A few minor bugfixes, see CHANGES.pdf or CHANGES.html for the details.
This package is located at http://mirror.ctan.org/macros/generic/xint More information is at http://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 operations on long numbers
The bundle provides nine packages:
- xintcore, which provides expandable TeX macros that implement the basic arithmetic operations of addition, subtraction, multiplication and division, as applied to arbitrarily long numbers represented as chains of digits with an optional minus sign;
- xint, which extends xintcore with more big integer operations;
- xinttools, which provides utilities of independent interest such as expandable and non-expandable loops;
- xintfrac, which computes fractions using xint;
- xintexpr, which extends xintfrac with an expandable parser of comma separated expressions involving integers, fractions, boolean, and algebraic operators, and declared as well as dummy variables;
- xintbinhex provides conversions to and from binary and hexadecimal bases;
- xintseries, which provides basic functionality for computing partial sums using xint;
- xintgcd, which provides implementations of the Euclidean algorithm, and of its typesetting;
- xintcfrac, which deals with the computation of continued fractions.
All of the packages’ computations are done in a way that they can operate in an expanding environment.
The packages may be used either with Plain TeX or LaTeX.
Package | xint |
Version | 1.2o 2017-08-29 |
Maintainer | Jean-François Burnol |