Vasum ( x -- sum )
Basic Linear Algebra Subroutines (BLAS) interface » BLAS interface vector operations

Prev:	Vnorm ( x -- norm )
Next:	Viamax ( x -- max-i )

Vocabulary
math.blas.vectors

Inputs

x	a blas-vector-base

Outputs

sum

a number

Word description
Calculate the sum of the norm-1s of the elements of x ( Σ ‖xᵢ‖₁ ). Corresponds to the xASUM routines in BLAS.

Definition

IN: math.blas.vectors

GENERIC: Vasum ( x -- sum )

Methods

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

M: complex-double-blas-vector Vasum (prepare-nrm2) DZASUM ;


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

M: complex-float-blas-vector Vasum (prepare-nrm2) SCASUM ;


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

M: double-blas-vector Vasum (prepare-nrm2) DASUM ;


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

M: float-blas-vector Vasum (prepare-nrm2) SASUM ;