numancy

A small, dependency-free Rust library for numerology calculations.

It implements two independent systems:

Pythagorean (pythagorean module): the widely used Western system where letters map A=1 .. I=9, then repeat. Master numbers 11, 22, 33 are preserved in the core numbers.
Cabalistic (cabalistic module): the Brazilian cabalistic system, where letters map to 1..8 and graphic accents add their own value. Master numbers 11 and 22 are preserved.

The two systems use different letter tables and accent rules, so they are kept strictly separate rather than mixed.

What it calculates

Requested core numbers (both systems where applicable):

Motivation (Soul Urge / Heart's Desire)
Impression (Personality)
Personal Year, Personal Month, Personal Day
House / address number

Additional widely analyzed numbers:

Expression / Destiny, Life Path, Birthday, Maturity, Universal Day
Hidden Passion / Hidden Tendencies, Karmic Lessons, Karmic Debts
Subconscious Self / Subconscious Response

Cabalistic-specific:

Hidden Talent, Psychic Number, Mission, Destiny
Life Cycles, Challenges, Decision Moments
Inverted Life Triangle, dominant arcana and regent arcane
Signature analysis
Relationship harmony, harmonic numbers and favorable days (lookup tables; extensible)

Example

use numancy::{BirthDate, chart::CabalisticMap};

let birth = BirthDate::new(1939, 11, 7).unwrap();
let reference = BirthDate::new(2020, 3, 15).unwrap();
let map = CabalisticMap::new("Barbara Liskov", birth, reference).unwrap();

assert_eq!(map.motivation.value, 11); // a master number
assert_eq!(map.impression.value, 4);
assert_eq!(map.expression.value, 6);
assert_eq!(map.life_triangle.regent, 7);

The tests and documentation use only public figures (pioneering women in computing) and their publicly known birth dates as examples.

Disclaimer

Numerology is a symbolic, reflective practice, not a scientific or predictive system. This library only performs the arithmetic of the tradition; it makes no claims about the meaning or truth of the results.

Development

cargo fmt --check
cargo clippy --all-targets -- -D warnings
cargo test

License