[−][src]Function mathru::special::gamma::gamma_lr

pub fn gamma_lr<T>(a: T, x: T) -> T where
    T: Real + Gamma, 

Lower regularized incomplete gamma function

Q(s,x)=\frac{\Gamma(s,x)}{\Gamma(s)}=1-P(s,x)

Fore more information: https://en .wikipedia.org/wiki/Incomplete_gamma_function# Regularized_Gamma_functions_and_Poisson_random_variables

https://people.sc.fsu.edu/~jburkardt/c_src/asa239/asa239.c

Arguments

  • a
  • x

Example

use mathru::special::gamma;

let a: f64 = 0.5_f64;
let x: f64 = 0.3_f64;
let gamma_lr: f64 = gamma::gamma_lr(a, x);