Crate russell_lab[−][src]

Expand description

Russell - Rust Scientific Library

lab: Matrix-vector laboratory including linear algebra tools

Examples

Vector addition

use russell_lab::*;
let u = Vector::from(&[10.0, 20.0, 30.0, 40.0]);
let v = Vector::from(&[2.0, 1.5, 1.0, 0.5]);
let mut w = Vector::new(4);
add_vectors(&mut w, 0.1, &u, 2.0, &v);
let correct = "┌   ┐\n\
               │ 5 │\n\
               │ 5 │\n\
               │ 5 │\n\
               │ 5 │\n\
               └   ┘";
assert_eq!(format!("{}", w), correct);

Matrix-Matrix multiplication

use russell_lab::*;
let a = Matrix::from(&[
    &[1.0, 2.0],
    &[3.0, 4.0],
    &[5.0, 6.0],
]);
let b = Matrix::from(&[
    &[-1.0, -2.0, -3.0],
    &[-4.0, -5.0, -6.0],
]);
let mut c = Matrix::new(3, 3);
mat_mat_mul(&mut c, 1.0, &a, &b);
let correct = "┌             ┐\n\
               │  -9 -12 -15 │\n\
               │ -19 -26 -33 │\n\
               │ -29 -40 -51 │\n\
               └             ┘";
assert_eq!(format!("{}", c), correct);