Struct ndarray_einsum_beta::contractors::pair_contractors::MatrixScalarProductGeneral

pub struct MatrixScalarProductGeneral {
    lhs_permutation: Permutation,
    matrix_scalar_product: MatrixScalarProduct,
}

Permutes the axes of the LHS tensor to the output order and multiply all elements by the single scalar in the 0-d RHS tensor.

This contraction can arise when the simplification of the RHS tensor results in all the axes being summed before the two tensors are contracted. For example, in the contraction ij,k->ji, the output matrix is equal to the LHS matrix, transposed and then scalar-multiplied by the sum of the elements of the RHS tensor.

Fields

lhs_permutation: Permutation

matrix_scalar_product: MatrixScalarProduct

Implementations

impl MatrixScalarProductGeneral

pub fn new(sc: &SizedContraction) -> Self

pub fn from_indices(input_indices: &[char], output_indices: &[char]) -> Self

Trait Implementations

impl Clone for MatrixScalarProductGeneral

fn clone(&self) -> MatrixScalarProductGeneral

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for MatrixScalarProductGeneral

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

Formats the value using the given formatter.

impl<A> PairContractor<A> for MatrixScalarProductGeneral

fn contract_pair<'a, 'b, 'c, 'd>(
    &self,
    lhs: &'b ArrayViewD<'a, A>,
    rhs: &'d ArrayViewD<'c, A>
) -> ArrayD<A> where
    'a: 'b,
    'c: 'd,
    A: Clone + LinalgScalar, 

fn contract_and_assign_pair<'a, 'b, 'c, 'd, 'e, 'f>(
    &self,
    lhs: &'b ArrayViewD<'a, A>,
    rhs: &'d ArrayViewD<'c, A>,
    out: &'f mut ArrayViewMutD<'e, A>
) where
    'a: 'b,
    'c: 'd,
    'e: 'f,
    A: Clone + LinalgScalar,