Struct ggez::graphics::na::Hessenberg

pub struct Hessenberg<N, D> where
    D: DimSub<U1>,
    N: Real,
    DefaultAllocator: Allocator<N, D, D>,
    DefaultAllocator: Allocator<N, <D as DimSub<U1>>::Output, U1>,  { /* fields omitted */ }

Hessenberg decomposition of a general matrix.

Methods

impl<N, D> Hessenberg<N, D> where
    D: DimSub<U1>,
    N: Real,
    DefaultAllocator: Allocator<N, D, D>,
    DefaultAllocator: Allocator<N, D, U1>,
    DefaultAllocator: Allocator<N, <D as DimSub<U1>>::Output, U1>, 

fn new(
    hess: Matrix<N, D, D, <DefaultAllocator as Allocator<N, D, D>>::Buffer>
) -> Hessenberg<N, D>

Computes the Hessenberg decomposition using householder reflections.

fn new_with_workspace(
    hess: Matrix<N, D, D, <DefaultAllocator as Allocator<N, D, D>>::Buffer>,
    work: &mut Matrix<N, D, U1, <DefaultAllocator as Allocator<N, D, U1>>::Buffer>
) -> Hessenberg<N, D>

Computes the Hessenberg decomposition using householder reflections.

The workspace containing D elements must be provided but its content does not have to be initialized.

fn unpack(
    self
) -> (Matrix<N, D, D, <DefaultAllocator as Allocator<N, D, D>>::Buffer>, Matrix<N, D, D, <DefaultAllocator as Allocator<N, D, D>>::Buffer>) where
    ShapeConstraint: DimEq<Dynamic, <D as DimSub<U1>>::Output>, 

Retrieves (q, h) with q the orthogonal matrix of this decomposition and h the hessenberg matrix.

fn unpack_h(
    self
) -> Matrix<N, D, D, <DefaultAllocator as Allocator<N, D, D>>::Buffer> where
    ShapeConstraint: DimEq<Dynamic, <D as DimSub<U1>>::Output>, 

Retrieves the upper trapezoidal submatrix H of this decomposition.

fn h(&self) -> Matrix<N, D, D, <DefaultAllocator as Allocator<N, D, D>>::Buffer> where
    ShapeConstraint: DimEq<Dynamic, <D as DimSub<U1>>::Output>, 

Retrieves the upper trapezoidal submatrix H of this decomposition.

This is less efficient than .unpack_h() as it allocates a new matrix.

fn q(&self) -> Matrix<N, D, D, <DefaultAllocator as Allocator<N, D, D>>::Buffer>

Computes the orthogonal matrix Q of this decomposition.

Trait Implementations

impl<N, D> Copy for Hessenberg<N, D> where
    D: DimSub<U1>,
    N: Real,
    DefaultAllocator: Allocator<N, D, D>,
    DefaultAllocator: Allocator<N, <D as DimSub<U1>>::Output, U1>,
    Matrix<N, D, D, <DefaultAllocator as Allocator<N, D, D>>::Buffer>: Copy,
    Matrix<N, <D as DimSub<U1>>::Output, U1, <DefaultAllocator as Allocator<N, <D as DimSub<U1>>::Output, U1>>::Buffer>: Copy, 

impl<N, D> Clone for Hessenberg<N, D> where
    D: DimSub<U1> + Clone,
    N: Clone + Real,
    DefaultAllocator: Allocator<N, D, D>,
    DefaultAllocator: Allocator<N, <D as DimSub<U1>>::Output, U1>, 

fn clone(&self) -> Hessenberg<N, D>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<N, D> Debug for Hessenberg<N, D> where
    D: DimSub<U1> + Debug,
    N: Debug + Real,
    DefaultAllocator: Allocator<N, D, D>,
    DefaultAllocator: Allocator<N, <D as DimSub<U1>>::Output, U1>, 

fn fmt(&self, __arg_0: &mut Formatter) -> Result<(), Error>

Formats the value using the given formatter.