Trait ndarray_linalg::solve::ReciprocalConditionNumInto
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pub trait ReciprocalConditionNumInto<A: Scalar> { fn rcond_into(self) -> Result<A::Real>; }
An interface for estimating the reciprocal condition number of matrices.
Required Methods
fn rcond_into(self) -> Result<A::Real>
Estimates the reciprocal of the condition number of the matrix in 1-norm.
This method uses the LAPACK *gecon
routines, which estimate
self.inv().opnorm_one()
and then compute rcond = 1. / (self.opnorm_one() * self.inv().opnorm_one())
.
- If
rcond
is near0.
, the matrix is badly conditioned. - If
rcond
is near1.
, the matrix is well conditioned.
Implementations on Foreign Types
impl<A, S> ReciprocalConditionNumInto<A> for ArrayBase<S, Ix2> where
A: Scalar,
S: DataMut<Elem = A>,
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A: Scalar,
S: DataMut<Elem = A>,
fn rcond_into(self) -> Result<A::Real>
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Implementors
impl<A, S> ReciprocalConditionNumInto<A> for LUFactorized<S> where
A: Scalar,
S: Data<Elem = A>,