Struct RotationSpec 

pub struct RotationSpec {
    pub kind: RotationKind,
    pub rope_dim: usize,
    pub range: f64,
}

Everything the rotation needs from the block: which algebra, how much of state_rank it turns, and how far one step may turn it.

Carried by Mamba3 and handed to rotate_bc_forward / rotate_bc_step (and to the constant-input shortcut) so that every site derives the per-step rotation from one definition — the three used to spell the formula out separately, which is exactly the kind of duplication that lets forward, step and step_infinite drift apart.

Fields

kind: RotationKind

Which rotational-state algebra (RotationKind).

rope_dim: usize

How many leading state_rank entries are rotated (see Mamba3Config::rope_fraction). For RotationKind::Quaternion4D this is a multiple of 4; for RotationKind::Real1D it is 0 and nothing reads it.

range: f64

The per-step rotation bound in half-turns per unit Δ (Mamba3Config::rotation_range): one step turns by at most range · π · Δ.

Trait Implementations

impl Clone for RotationSpec

fn clone(&self) -> RotationSpec

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for RotationSpec

impl Debug for RotationSpec

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

Formats the value using the given formatter.

impl PartialEq for RotationSpec

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for RotationSpec