Struct LuDecompositionF32 

pub struct LuDecompositionF32 { /* private fields */ }

Compact LU factorization in column-major layout.

Implementations

impl LuDecompositionF32

pub fn factors(&self) -> &[f32]

Examples found in repository

examples/05_lapack_decompositions.rs (line 8)

fn main() {
    // Column-major 2x2 matrix [[3, 1], [1, 2]].
    let matrix = [3.0_f32, 1.0, 1.0, 2.0];
    let lu = lu_decompose_f32(&matrix, 2).expect("lu");
    assert_eq!(lu.dimension(), 2);
    assert_eq!(lu.factors().len(), 4);

    let solution = solve_linear_system_f32(&matrix, 2, &[9.0_f32, 8.0]).expect("solve");
    assert!((solution[0] - 2.0).abs() < 1.0e-5);
    assert!((solution[1] - 3.0).abs() < 1.0e-5);

    println!(
        "lapack smoke passed: pivots={:?} solution={solution:?}",
        lu.pivots()
    );
}

pub fn pivots(&self) -> &[i32]

Examples found in repository

examples/05_lapack_decompositions.rs (line 16)

fn main() {
    // Column-major 2x2 matrix [[3, 1], [1, 2]].
    let matrix = [3.0_f32, 1.0, 1.0, 2.0];
    let lu = lu_decompose_f32(&matrix, 2).expect("lu");
    assert_eq!(lu.dimension(), 2);
    assert_eq!(lu.factors().len(), 4);

    let solution = solve_linear_system_f32(&matrix, 2, &[9.0_f32, 8.0]).expect("solve");
    assert!((solution[0] - 2.0).abs() < 1.0e-5);
    assert!((solution[1] - 3.0).abs() < 1.0e-5);

    println!(
        "lapack smoke passed: pivots={:?} solution={solution:?}",
        lu.pivots()
    );
}

pub const fn dimension(&self) -> usize

Examples found in repository

examples/05_lapack_decompositions.rs (line 7)

fn main() {
    // Column-major 2x2 matrix [[3, 1], [1, 2]].
    let matrix = [3.0_f32, 1.0, 1.0, 2.0];
    let lu = lu_decompose_f32(&matrix, 2).expect("lu");
    assert_eq!(lu.dimension(), 2);
    assert_eq!(lu.factors().len(), 4);

    let solution = solve_linear_system_f32(&matrix, 2, &[9.0_f32, 8.0]).expect("solve");
    assert!((solution[0] - 2.0).abs() < 1.0e-5);
    assert!((solution[1] - 3.0).abs() < 1.0e-5);

    println!(
        "lapack smoke passed: pivots={:?} solution={solution:?}",
        lu.pivots()
    );
}

Trait Implementations

impl Clone for LuDecompositionF32

fn clone(&self) -> LuDecompositionF32

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for LuDecompositionF32

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for LuDecompositionF32

fn eq(&self, other: &LuDecompositionF32) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for LuDecompositionF32