n*M.V ( alpha A x -- alpha*A.x ) - Factor Documentation

n*M.V ( alpha A x -- alpha*A.x )
Basic Linear Algebra Subroutines (BLAS) interface » BLAS interface matrix operations

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Vocabulary
math.blas.matrices

Inputs

alpha	a number
A	a blas-matrix-base
x	a blas-vector-base

Outputs

alpha*A.x

a blas-vector-base

Word description
Calculate the matrix-vector product αAx and return a freshly allocated vector containing the result. The width of A must match the length of x. The length of the returned vector will match the height of A. Corresponds to the xGEMV routines in BLAS.

See also
n*M.V+n*V!, n*M.V+n*V, M.V

Definition

USING: kernel math.blas.vectors ;

IN: math.blas.matrices

: n*M.V ( alpha A x -- alpha*A.x )
1.0 2over [ Mheight ] dip <empty-vector> n*M.V+n*V! ; inline