n*V+V! ( alpha x y -- y=alpha*x+y )
Basic Linear Algebra Subroutines (BLAS) interface » BLAS interface vector operations

Prev:	Vneg ( x -- -x )
Next:	n*V+V ( alpha x y -- alpha*x+y )

Vocabulary
math.blas.vectors

Inputs

alpha	a number
x	a blas-vector-base
y	a blas-vector-base

Outputs

y=alpha*x+y

a blas-vector-base

Word description
Calculate the vector sum αx + y and replace the existing contents of y with the result. Corresponds to the xAXPY routines in BLAS.

Side effects
Modifies y

See also
n*V!, n*V+V, n*V, V+, V-, Vneg, V*n, V/n

Definition

IN: math.blas.vectors

GENERIC: n*V+V! ( alpha x y -- y=alpha*x+y )

Methods

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

M: complex-double-blas-vector n*V+V!
    (prepare-axpy) [ ZAXPY ] dip ;


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

M: complex-float-blas-vector n*V+V!
    (prepare-axpy) [ CAXPY ] dip ;


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

M: double-blas-vector n*V+V! (prepare-axpy) [ DAXPY ] dip ;


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

M: float-blas-vector n*V+V! (prepare-axpy) [ SAXPY ] dip ;

This documentation was generated offline from a load-all image. If you want, you can also browse the documentation from within the UI developer tools. See the Factor website for more information.

Factor 0.99 x86.64 (2168, heads/master-c0150244ae, Jun 20 2022 14:04:16)