Vnorm ( x -- norm )
Basic Linear Algebra Subroutines (BLAS) interface » BLAS interface vector operations

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Vocabulary
math.blas.vectors

Inputs

x	a blas-vector-base

Outputs

norm

a number

Word description
Calculate the norm-2, i.e., the magnitude or absolute value, of x (‖x‖₂). Corresponds to the xNRM2 routines in BLAS.

Definition

IN: math.blas.vectors

GENERIC: Vnorm ( x -- norm )

Methods

USING: math.blas.ffi math.blas.vectors math.blas.vectors.private
;

M: complex-double-blas-vector Vnorm (prepare-nrm2) DZNRM2 ;


USING: math.blas.ffi math.blas.vectors math.blas.vectors.private
;

M: complex-float-blas-vector Vnorm (prepare-nrm2) SCNRM2 ;


USING: math.blas.ffi math.blas.vectors math.blas.vectors.private
;

M: double-blas-vector Vnorm (prepare-nrm2) DNRM2 ;


USING: math.blas.ffi math.blas.vectors math.blas.vectors.private
;

M: float-blas-vector Vnorm (prepare-nrm2) SNRM2 ;