Trait ndarray_linalg::solve::DeterminantInto[−][src]

pub trait DeterminantInto<A: Scalar>: Sized {
    fn sln_det_into(self) -> Result<(A, A::Real)>;

    fn det_into(self) -> Result<A> { ... }
}

An interface for calculating determinants of matrices.

Required methods

fn sln_det_into(self) -> Result<(A, A::Real)>[src]

Computes the (sign, natural_log) of the determinant of the matrix.

For real matrices, sign is 1, 0, or -1. For complex matrices, sign is 0 or a complex number with absolute value 1. The natural_log is the natural logarithm of the absolute value of the determinant. If the determinant is zero, sign is 0 and natural_log is negative infinity.

To obtain the determinant, you can compute sign * natural_log.exp() or just call .det_into() instead.

This method is more robust than .det() to very small or very large determinants since it returns the natural logarithm of the determinant rather than the determinant itself.

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Provided methods

fn det_into(self) -> Result<A>[src]

Computes the determinant of the matrix.

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Implementations on Foreign Types

impl<A, S> DeterminantInto<A> for ArrayBase<S, Ix2> where
    A: Scalar + Lapack,
    S: DataMut<Elem = A> + RawDataClone, [src]

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Implementors

impl<A, S> DeterminantInto<A> for LUFactorized<S> where
    A: Scalar + Lapack,
    S: Data<Elem = A> + RawDataClone, [src]

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