Struct SvdPullback 

pub struct SvdPullback { /* private fields */ }

Implementations

impl SvdPullback

pub fn values_backward(&self, ds: &[f64]) -> Result<Matrix, SolverError>

Singular-value-only VJP. Rejects zero/repeated values rather than returning an arbitrary nonsmooth derivative. Values gradients must be finite.

pub fn backward( &self, du: MatrixView<'_>, ds: &[f64], dvt: MatrixView<'_>, ) -> Result<Matrix, SolverError>

Full thin-SVD VJP for nonzero, distinct singular values. Singular vector signs/bases must be used consistently with this exact forward result.

Trait Implementations

impl Clone for SvdPullback

fn clone(&self) -> SvdPullback

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SvdPullback

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

Formats the value using the given formatter.