Crate russell_chk

Russell - Rust Scientific Library

chk: Functions to check vectors and other data in tests

Example

// check float point number
assert_approx_eq!(0.0000123, 0.000012, 1e-6);

// check vector of float point numbers
assert_vec_approx_eq!(&[0.01, 0.012], &[0.012, 0.01], 1e-2);

// check derivative using central differences
let f = |x: f64| -x;
let at_x = 8.0;
let dfdx_at_x = -1.01;
assert_deriv_approx_eq!(dfdx_at_x, f, at_x, 1e-2);

Macros

assert_approx_eq

Asserts that two numbers are approximately equal to each other

assert_deriv_approx_eq

Asserts that derivatives have approximately equal values

assert_vec_approx_eq

Asserts that two vectors have the same length and approximately equal values

Constants

STEPSIZE_CENTRAL5

Initial stepsize h for deriv_central5

Functions

deriv_and_errors_central5

Computes the numerical derivative and errors using central differences with 5 points

deriv_central5

Computes the numerical derivative using central differences with 5 points

desc

Returns package description