Enum TriangleType 

pub enum TriangleType {
    Lower,
    Upper,
}

Type of triangular matrix for cumsum-like operators.

Variants

• Lower: Strict lower triangle, M[i,j] = 1 when i > j. Computes the prefix sum: y_i = sum of x_j for j < i.
• Upper: Strict upper triangle, M[i,j] = 1 when i < j. Computes the suffix sum: y_i = sum of x_j for j > i.

Examples

use tensor4all_quanticstransform::{triangle_operator, TriangleType};

// Prefix sum (lower triangle)
let lower = triangle_operator(4, TriangleType::Lower).unwrap();
assert_eq!(lower.mpo.node_count(), 4);

// Suffix sum (upper triangle)
let upper = triangle_operator(4, TriangleType::Upper).unwrap();
assert_eq!(upper.mpo.node_count(), 4);

Variants

Lower

Strict lower triangle: M[i,j] = 1 when i > j. Computes y_i = sum of x_j for j < i (prefix sum).

Upper

Strict upper triangle: M[i,j] = 1 when i < j. Computes y_i = sum of x_j for j > i (suffix sum).

Trait Implementations

impl Clone for TriangleType

fn clone(&self) -> TriangleType

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TriangleType

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

Formats the value using the given formatter.

impl PartialEq for TriangleType

fn eq(&self, other: &TriangleType) -> 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 Copy for TriangleType

impl Eq for TriangleType

impl StructuralPartialEq for TriangleType