Struct QrOptions 

pub struct QrOptions {
    pub rtol: Option<f64>,
    /* private fields */
}

Options for QR decomposition with truncation control.

Examples

use tensor4all_core::qr::{QrOptions, qr_with};
use tensor4all_core::{DynIndex, TensorDynLen};

let i = DynIndex::new_dyn(3);
let j = DynIndex::new_dyn(3);
let data: Vec<f64> = (0..9).map(|x| x as f64).collect();
let tensor = TensorDynLen::from_dense(vec![i.clone(), j.clone()], data).unwrap();

let opts = QrOptions::new().with_rtol(1e-10);
let (q, r) = qr_with::<f64>(&tensor, &[i], &opts).unwrap();

// Q * R recovers the original tensor
let recovered = q.contract(&r);
assert!(tensor.distance(&recovered) < 1e-12);

Fields

rtol: Option<f64>

Relative tolerance for QR row-norm truncation. If None, uses the global default.

Implementations

impl QrOptions

pub fn new() -> Self

Create new QR options with no overrides.

pub fn with_rtol(self, rtol: f64) -> Self

Set the QR truncation tolerance.

Trait Implementations

impl Clone for QrOptions

fn clone(&self) -> QrOptions

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for QrOptions

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

Formats the value using the given formatter.

impl Default for QrOptions

fn default() -> Self

Returns the “default value” for a type.

impl Copy for QrOptions