Jean-François Burnol submitted an update to the
zeckendorfpackage.
Version: 0.9c 2025-10-17 License: lppl1.3c
Summary description: Knuth Fibonacci multiplication, Zeckendorf and Bergman representations of big integers
Announcement text:
This adds many new features and has some breaking changes due to renamings, not listed here.
It is not \xintiieval but \xinteval's syntax which is now extended.
Variables phi and psi are defined and one can do algebra with +, -, *, and ^ on them in Q(phi).
The Bergman phi-representation is added for elements of Z[phi] in particular for integers.
The $ character doing the Knuth Fibonacci multiplication on positive integers now uses the (more efficient) Arnoux formula. The $$ computes out of deference according to the Knuth formula.
The PDF documentation section on the mathematical background has been extended and includes bibliographical references.
The interactive interface integrates all novelties.
The package’s Catalogue entry can be viewed at https://ctan.org/pkg/zeckendorf
The package’s files themselves can be inspected at https://mirrors.ctan.org/macros/generic/zeckendorf/
Thanks for the upload.
For the CTAN Team Vincent Goulet
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