Balanced Ternary

Balanced Ternary is a Rust library for manipulating balanced ternary numbers, a numeral system with digits -1, 0, and +1.

This system is useful in areas like computer science and mathematics due to its symmetry and unique arithmetic properties.

Features

Number Conversions: Convert between decimal and balanced ternary representations.
Arithmetic Operations: Support for addition, subtraction, multiplication, and division.
Logic Operations: Support for bitwise and, or, xor, and not.
Advanced logic: Implementation of K3, L3, RM3 and HT imply operation.
Custom Representation: Parse and display numbers using +, 0, and - symbols.
No Standard Library: Suitable for #![no_std] environments.
Provides the types:
- Digit (Neg, Zero or Pos),
- Ternary (heap allocated variable-length balanced-ternary number),
- Tryte (6 characters long copy-type ternary number).

Examples

Convert between decimal and balanced ternary

use balanced_ternary::*;

fn test() {
    let ternary = Ternary::from_dec(5);
    assert_eq!(ternary.to_string(), "+--");
    
    let ternary = Ternary::parse("+--");
    assert_eq!(ternary.to_dec(), 5);
}

Perform arithmetic or logic operations

use balanced_ternary::*;

fn test() {
    let a = Ternary::from_dec(9);
    let b = Ternary::from_dec(4);
    let sum = &a + &b;
    assert_eq!(ternary.to_string(), "+++");
    assert_eq!(sum.to_dec(), 13);

    let bitwise = &Ternary::parse("++00") & &Ternary::parse("0000");
    assert_eq!(bitwise.to_string(), "0000");

    let bitwise = &Ternary::parse("++00") & &Ternary::parse("0+00");
    assert_eq!(bitwise.to_string(), "0+00");

    let bitwise = &Ternary::parse("+000") | &Ternary::parse("000-");
    assert_eq!(bitwise.to_string(), "+000");


    let bitwise = &Ternary::parse("+000") & &Ternary::parse("000-");
    assert_eq!(bitwise.to_string(), "000-");

    let bitwise = &Ternary::parse("+000") | &Ternary::parse("000+");
    assert_eq!(bitwise.to_string(), "+00+");
}

Handle negative numbers

use balanced_ternary::*;

fn test() {
    let negative = Ternary::from_dec(-5);
    assert_eq!(negative.to_string(), "-++");
}

Installation

Add the following to your Cargo.toml:

[dependencies]

balanced-ternary = "0.1.*"

balanced-ternary 0.1.4