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CTAN Update: xint

Date: February 2, 2020 2:40:55 PM CET
Jean-François Burnol submitted an update to the xint package. Version: 1.4 2020-01-31 License: lppl1.3c Summary description: Expandable operations on long numbers Announcement text:
This is a major release with some breaking changes. Selected highlights: - The \expanded primitive (TeXLive 2019) is required. Its usage has allowed dropping formerly used \csname techniques. There is no more impact on the string pool memory. - Square brackets [...] are now associated with actual nested structures. For example \xinteval{1, [2, [3, 4]], 5} produces 1, [2, [3, 4]], 5 (recall this is free bloatware). - Scalar operations on one-dimensional "lists" (which as it turned out matched the NumPy "broadcasting" concept) are provisorily dropped. Alternative syntax exists to rescue old documents. - Operations on nested lists are inspired from NumPy's. Currently, nested (basic) slicing and indexing is implemented. But the step parameters are not. The broadcasting of scalar operations is not yet implemented but the user can define "universal functions", i.e. functions operating on all leaves of the data. Our structures have leaves at arbitrary varying depths, they are not necessarily hyperrectangular like NumPy's. Constructors are provided, for example ndmap() maps a function on all Cartesian n-uples built from items (at top level) of n given lists. - Variables in function declarations may be multi-letter words. - The last positional variable name may be prefixed with a * as in Python to signal it is a "nut-ple" receiving all arguments of the function calls beyond the first positional ones ("variadic" argument). Generally speaking, * is the unpacking operator. - ... quite a few more features. See CHANGES.html and xint.pdf.
The package’s Catalogue entry can be viewed at https://ctan.org/pkg/xint The package’s files themselves can be inspected at http://mirror.ctan.org/macros/generic/xint/
Thanks for the upload. For the CTAN Team Petra Rübe-Pugliese
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xint – Expandable operations on long numbers

The xint bundle main modules are:

xinttools
utilities of independent interest such as expandable and non-expandable loops,
xintcore
expandable macros implementing addition, subtraction, multiplication, division, and powers for arbitrarily long integers,
xint
extension of xintcore,
xintfrac
extends the scope of xint to decimal numbers, to numbers using scientific notation and also to (exact) fractions,
xintexpr
provides expandable parsers of numeric expressions using the standard infix notations, parentheses, built-in functions, user definable functions and variables (and more ...) which do either exact evaluations (also with fractions) or floating point evaluations under a user chosen precision.

Further modules of the bundle are: xintkernel (support macros for all the bundle constituents), xintbinhex (conversion to and from hexadecimal and binary bases), xintgcd (provides gcd() and lcm() functions to xintexpr), xintseries (evaluates numerically partial sums of series and power series with fractional coefficients), and xintcfrac (dedicated to the computation and display of continued fractions).

All computations are compatible with expansion-only context.

The packages may be used with Plain , , or (a priori) any other macro format built upon .

Packagexint
Version1.4b 2020-02-25
Copyright2013–2020 Jean-François Burnol
MaintainerJean-François Burnol

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