Function reikna::integral::integral

pub fn integral(f: &Function, c: f64, p: u64) -> Function

Return a Function that estimates the integral of f, using a constant of c and a positive precision constant of p.

This is a helper function that calls nth_integral() with an n value of 1. See the documentation for nth_integral() for more information.

Panics

Panics if nth_integral() panics. See the documentation of nth_integral() for more information.

Examples

#[macro_use] extern crate reikna;
use reikna::integral::*;

let f = func!(|x| x * x);
let integral = integral(&f, 1.0, DEFAULT_PRECISION);

println!("integral({}) = {}",  0.0, integral( 0.0));
println!("integral({}) = {}",  1.0, integral( 1.0));
println!("integral({}) = {}", -2.0, integral(-2.0));

Outputs:

integral(0.0) = 1.0
integral(1.0) = 1.3333333333333333
integral(-2.0) = -1.6666666666666665