Suggestions for polexpr

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

Package xlop: Calculates and displays arithmetic operations
Package fltpoint: Simple floating point arithmetic
Package tuple: Expandable operations for tuples of numbers
Package chemfig: Draw molecules with easy syntax
Package bxcalc: Extend the functionality of the calc package
Package zeckendorf: Knuth Fibonacci multiplication, Zeckendorf and Bergman representations of big integers
Package calcfrac: Calculates the value of an expression containing fractions
Package witharrows: Aligned math environments with arrows for comments
Package etoolbox-generic: A loader for etoolbox.sty in non-LaTeX formats
Package youngtab: Typeset Young-Tableaux
Package visualtoks: Typeset TeXbook-style visualisations of token lists
Package realcalc: Macros for real arithmetic calculations
Package xint: Expandable arbitrary precision floating point and integer operations
Package longdivision: Typesets long division
Package ltxcmds: Some LaTeX kernel commands for general use
Package namedef: TeX definitions with named parameters
Package pdftexcmds: LuaTeX support for pdfTeX utility functions
Package texdimens: Conversion of TeX dimensions to decimals
Package minifp: Fixed-point real computations to 8 decimals
Package hologo: A collection of logos with bookmark support
Package iftex: Am I running under pdfTeX, XeTeX or LuaTeX?
Package luakeys: A Lua module for parsing key-value options
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 lparse: Parse macro arguments with Lua using xparse-like specification
Package expkv-bundle: An expandable key=val implementation and friends
Package eoldef: Define commands which absorb the whole source line as arguments