The bundle provides four packages:
– xint, 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;
– xintgcd, which provides implementations of the Euclidean algorithm, and of its typesetting;
– xintfrac, which computes fractions using xint;
– xintseries, which computes partial sums using xint; and
– 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.

The author is Jean-François Burnol. The package is Copyright © 2013 Jean-François Burnol.