spfunc

Rust crate for numerical calculation of special functions.

This crate can calculate each special function for f32, f64, Complex32, Complex64 (from num_complex crate).

Note

This crate is still in the development stage and the numerical calculations are not so accurate (especially Hurwitz zeta function).

Functions

The Gamma Function

• The gamma function
• The digamma function
• The polygamma function

The Zeta Function

• The Riemann zeta function
• The Hurwitz zeta function

How to use

use spfunc::gamma::*;
use cauchy::{c32, c64};

fn main() {
    println!("Gamma(1.0) = {}", gamma(1.0));
    println!("ln(Gamma(1.0)) = {}", gamma_ln(1.0));

    println!("Gamma(1.2+3.4i) = {}", gamma(c32::new(1.2, 3.4)));
    println!("ln(Gamma(1.2+3.4i)) = {}", gamma_ln(c32::new(1.2, 3.4)));
    
    println!("DiGamma(1.2+3.4i) = {}", digamma(c64::new(1.2, 3.4)));
    println!("TriGamma(1.2+3.4i) = {}", polygamma(c64::new(1.2, 3.4), 1))
}