blas-matrix-base

Vocabulary

math.blas.matrices

Class description

The base class for all BLAS matrix types. Objects of this type should not be created directly; instead, instantiate one of the typed subclasses:

•	float-blas-matrix
•	double-blas-matrix
•	complex-float-blas-matrix
•	complex-double-blas-matrix

All of these subclasses share the same tuple layout:

•	underlying contains an alien pointer referencing or byte-array containing a packed, column-major array of float, double, float complex, or double complex values;
•	ld indicates the distance, in elements, between matrix columns;
•	rows and cols indicate the number of significant rows and columns in the matrix;
•	and transpose, if set to a true value, indicates that the matrix should be treated as transposed relative to its in-memory representation.

See also

blas-vector-base

Definition

IN: math.blas.matrices

TUPLE: blas-matrix-base underlying ld rows cols transpose ;

Methods

USING: math.blas.matrices prettyprint.custom ;

M: blas-matrix-base >pprint-sequence Mrows ;


USING: accessors alien.c-types alien.data combinators kernel
math math.blas.matrices math.blas.matrices.private
math.blas.vectors ;

M: blas-matrix-base clone
    [
        [
            {
                [ underlying>> ]
                [ ld>> ]
                [ cols>> ]
                [ element-type heap-size ]
            } cleave * * memory>byte-array
        ] [
            { [ ld>> ] [ rows>> ] [ cols>> ] [ transpose>> ] }
            cleave
        ] bi
    ] keep (blas-matrix-like) ;


USING: combinators.short-circuit kernel math.blas.matrices
sequences ;

M: blas-matrix-base equal?
    {
        [ and ]
        [ [ Mwidth ] bi@ = ]
        [ [ Mcols ] bi@ [ = ] 2all? ]
    } 2&& ;


USING: math.blas.matrices prettyprint.custom ;

M: blas-matrix-base pprint* pprint-object ;