naginterfaces.library.blas.zgerc

naginterfaces.library.blas.zgerc(alpha, x, y, a)[source]

zgerc computes the rank-1 update of a complex general matrix using a conjugated vector.

For full information please refer to the NAG Library document for f06sn

https://www.nag.com/numeric/nl/nagdoc_28.7/flhtml/f06/f06snf.html

Parameters
alphacomplex

The scalar .

xcomplex, array-like, shape

The element vector .

Intermediate elements of X are not referenced.

ycomplex, array-like, shape

The -element vector .

acomplex, array-like, shape

The matrix .

Returns
acomplex, ndarray, shape

The updated matrix .

Raises
NagValueError
(errno )

On entry, error in parameter .

Constraint: .

(errno )

On entry, error in parameter .

Constraint: .

(errno )

On entry, error in parameter .

Constraint: .

(errno )

On entry, error in parameter .

Constraint: .

Notes

In the NAG Library the traditional C interface for this routine uses a different algorithmic base. Please contact NAG if you have any questions about compatibility.

zgerc performs the rank-1 update operation

where is an complex matrix, is an element complex vector, is an -element complex vector, and is a complex scalar.