Struct TtCore 

pub struct TtCore {
    pub r_left: usize,
    pub n: usize,
    pub r_right: usize,
    pub data: Vec<f64>,
}

A single Tensor Train core of shape (r_left, n, r_right).

Fields

r_left: usize

Left bond dimension r_{k-1}.

n: usize

Mode dimension n_k.

r_right: usize

Right bond dimension r_k.

data: Vec<f64>

Flat C-order data, length r_left * n * r_right.

Implementations

impl TtCore

pub fn zeros(r_left: usize, n: usize, r_right: usize) -> Self

Create a zero TT core.

pub fn get(&self, alpha: usize, i: usize, beta: usize) -> f64

Get element at (alpha, i, beta).

pub fn set(&mut self, alpha: usize, i: usize, beta: usize, val: f64)

Set element at (alpha, i, beta).

pub fn frobenius_norm(&self) -> f64

Frobenius norm of this core.

Trait Implementations

impl Clone for TtCore

fn clone(&self) -> TtCore

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TtCore

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

Formats the value using the given formatter.