Crate num_irrational

Expand description

This crate provides representations of part of irrational numbers with following categories:

Math constants (pi, e, etc.)
- Values and continued fraction representations
Quadratic Numbers
- Quadratic Irrational: QuadraticSurd
Continued Fraction
- Simple continued fraction: ContinuedFraction, InfiniteContinuedFraction
- General continued fraction: GeneralContinuedFraction
- Transcendental functions represented in continued fractions

It’s based on the num creates.

Examples

use num_irrational::{FromSqrt, QuadraticSurd};
let sq2 = QuadraticSurd::from_sqrt(2i32).unwrap();
println!("Square root of 2: {}", sq2); // √2
 
use num_irrational::Computable;
let sq2_approx = sq2.approximated(&100).value();
println!("Rational approximation with denominator under 100: {}", sq2_approx); // 99/70
 
use core::convert::TryFrom;
use num_irrational::ContinuedFraction;
// let sq2_fraction = ContinuedFraction::from(sq2); // only if feature `complex` is disabled
let sq2_fraction = ContinuedFraction::try_from(sq2).unwrap();
println!("Continued Fraction: {}", sq2_fraction); // [1; (2)]

Optional Features

complex: Enable negative square root base support for QuadraticSurd. Note that this flag might change some behavior of the operators on QuadraticSurd.
num-complex: Enable converting QuadraticSurd to num_complex::Complex. You probably want to enable the complex feature at the same time.
num-bigint: Enable using big integer as internal representations.