Module flag4j

Package org.flag4j.linalg.ops.dense_sparse.coo.real_field_ops

Class RealFieldDenseCooMatMultTranspose

java.lang.Object

org.flag4j.linalg.ops.dense_sparse.coo.real_field_ops.RealFieldDenseCooMatMultTranspose

public final class RealFieldDenseCooMatMultTranspose
extends Object

This class contains several low level methods for computing matrix-matrix multiplications with a transpose for a real/field and sparse/dense matrix.

Warning: These methods do not perform any sanity checks.

Constructor Summary

Constructors

Modifier	Constructor	Description
private	RealFieldDenseCooMatMultTranspose()

Method Summary

Modifier and Type	Method	Description
static <T extends Field<T>> Field<T>[]	multTranspose(double[] dSrc, Shape dShape, Field<T>[] spSrc, int[] rowIndices, int[] colIndices, Shape spShape)	Multiplies a real dense matrix to the transpose of a sparse field matrix.
static <T extends Field<T>> Field<T>[]	multTranspose(Field<T>[] dSrc, Shape dShape, double[] spSrc, int[] rowIndices, int[] colIndices, Shape spShape)	Multiplies a dense field matrix to the transpose of a real sparse matrix.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

RealFieldDenseCooMatMultTranspose

private RealFieldDenseCooMatMultTranspose()

Method Details

multTranspose

public static <T extends Field<T>> Field<T>[] multTranspose(double[] dSrc,
 Shape dShape,
 Field<T>[] spSrc,
 int[] rowIndices,
 int[] colIndices,
 Shape spShape)

Multiplies a real dense matrix to the transpose of a sparse field matrix.

Parameters:

dSrc - Entries of dense matrix.

dShape - Shape of dense matrix.

spSrc - Non-zero entries of sparse matrix.

rowIndices - Row indices of non-zero entries in the sparse matrix.

colIndices - Column indices of non-zero entries in the sparse matrix.

spShape - Shape of the sparse matrix.

Returns:

The entries of the matrix resulting from multiplying the first matrix by the transpose of the second matrix.

multTranspose

public static <T extends Field<T>> Field<T>[] multTranspose(Field<T>[] dSrc,
 Shape dShape,
 double[] spSrc,
 int[] rowIndices,
 int[] colIndices,
 Shape spShape)

Multiplies a dense field matrix to the transpose of a real sparse matrix.

Parameters:

dSrc - Entries of dense matrix.

dShape - Shape of dense matrix.

spSrc - Non-zero entries of sparse matrix.

rowIndices - Row indices of non-zero entries in the sparse matrix.

colIndices - Column indices of non-zero entries in the sparse matrix.

spShape - Shape of the sparse matrix.

Returns:

The entries of the matrix resulting from multiplying the first matrix by the transpose of the second matrix.