Suggestions for zeckendorf

The following packages have something in common with the package zeckendorf. The packages are ordered in decreasing similarity.

Package xlop: Calculates and displays arithmetic operations
Package realcalc: Macros for real arithmetic calculations
Package xint: Expandable arbitrary precision floating point and integer operations
Package polexpr: A parser for polynomial expressions
Package fltpoint: Simple floating point arithmetic
Package minifp: Fixed-point real computations to 8 decimals
Package bxcalc: Extend the functionality of the calc package
Package didec: Fixed-point arithmetic with two decimal places
Package bnumexpr: Extends eTeX’s \numexpr...\relax construct to big integers
Package bigintcalc: Integer calculations on very large numbers
Package calc: Simple arithmetic in LaTeX commands
Package intcalc: Expandable arithmetic operations with integers
Package fp: Fixed point arithmetic
Package poormanlog: Logarithms and powers with (almost) 9 digits
Package tuple: Expandable operations for tuples of numbers
Package basicarith: Macros for typesetting basic arithmetic
Package longdiv: Long division arithmetic problems
Package trigonometry: Demonstration code for cos and sin in TeX macros
Package apnum: Arbitrary precision numbers implemented by TeX macros
Package modulus: A non-destructive modulus and integer quotient operator for TeX
Package longdivision: Typesets long division
Package luacomplex: Operations on complex numbers inside LaTeX documents using Lua
Package trig: Simple trigonometric functions
Package papermas: Compute the mass of a printed version of a document
Package dow: Calculate day of week from a numeric date
Package calendarweek: Calculate the week number of a date
Package random: Generating random numbers in TeX
Package calcfrac: Calculates the value of an expression containing fractions
Package fibnum: Generate Fibonacci numbers
Package thepdfnumber: Print PDF numbers with minimal digits
Package xfp: Interface to the LaTeX3 floating point unit