naginterfaces.library.blas.znegv

naginterfaces.library.blas.znegv(x)

znegv negates a complex vector.

For full information please refer to the NAG Library document for f06hg

https://support.nag.com/numeric/nl/nagdoc_30/flhtml/f06/f06hgf.html

Parameters

xcomplex, array-like, shape $\left(n\right)$

The $n$-element vector $x$.

Returns

xcomplex, ndarray, shape $\left(n\right)$

The vector $-x$.

Raises

NagValueError

(errno $3$)

On entry, error in parameter $\text{incx}$.

Constraint: $\text{incx}>0$.

Notes

No equivalent traditional C interface for this routine exists in the NAG Library.

znegv performs the operation

$$x\leftarrow -x$$

where $x$ is an $n$-element complex vector.