Sparse Linear Algebra Operations.Multiply And Add In Place Method
Definition
Namespace: Numerics.NET.LinearAlgebra.Implementation
Assembly: Numerics.NET (in Numerics.NET.dll) Version: 9.0.2
Assembly: Numerics.NET (in Numerics.NET.dll) Version: 9.0.2
Overload List
MultiplyAndAddInPlace(TransposeOperation, Int32, Int32, Int32, Double, MatrixStructure, MatrixTriangle, MatrixDiagonal, ReadOnlySpan<Double>, ReadOnlySpan<Int32>, ReadOnlySpan<Int32>, ReadOnlySpan<Int32>, ReadOnlySpan<Double>, Int32, Double, Span<Double>, Int32)
Multiplies a dense matrix by a sparse matrix in Compressed Sparse Column (CSC) format.
public override void MultiplyAndAddInPlace(
TransposeOperation transA,
int m,
int n,
int k,
double alpha,
MatrixStructure structure,
MatrixTriangle storedTriangle,
MatrixDiagonal matrixDiagonal,
ReadOnlySpan<double> a,
ReadOnlySpan<int> aRows,
ReadOnlySpan<int> aPointerB,
ReadOnlySpan<int> aPointerE,
ReadOnlySpan<double> b,
int ldb,
double beta,
Span<double> c,
int ldc
)
Parameters
- transA TransposeOperation
- Specifies the operation to be performed on the matrix a.
- m Int32
- The number of rows in the matrix a.
- n Int32
- The number of columns in the matrix c.
- k Int32
- The number of columns in the matrix a.
- alpha Double
- The scalar used to multiply the matrix-matrix product.
- structure MatrixStructure
- A MatrixStructure value that specifies the structure of the matrix.
- storedTriangle MatrixTriangle
- A MatrixTriangle value that specifies whether the matrix is upper or lower triangular.
- matrixDiagonal MatrixDiagonal
- A MatrixDiagonal value that indicates whether the diagonal elements are all 1 or not.
- a ReadOnlySpan<Double>
- A span that contains the elements of the matrix.
- aRows ReadOnlySpan<Int32>
- Integer array that contains the 1-based row indices of the corresponding elements of a.
- aPointerB ReadOnlySpan<Int32>
- Integer array of length n containing the 1-based indices into a of the first component of each column.
- aPointerE ReadOnlySpan<Int32>
- Integer array of length n containing the 1-based indices into a of the first component of each column.
- b ReadOnlySpan<Double>
- A reference to a one-dimensional array containing the elements of the matrix b.
- ldb Int32
- The leading dimension of the matrix b.
- beta Double
- The scalar used to multiply c.
- c Span<Double>
- A reference to a one-dimensional array containing the elements of the matrix c. The elements of c are overwritten with the result.
- ldc Int32
- The leading dimension of the matrix c.
Implements
ISparseLinearAlgebraOperations<T>.MultiplyAndAddInPlace(TransposeOperation, Int32, Int32, Int32, T, MatrixStructure, MatrixTriangle, MatrixDiagonal, ReadOnlySpan<T>, ReadOnlySpan<Int32>, ReadOnlySpan<Int32>, ReadOnlySpan<Int32>, ReadOnlySpan<T>, Int32, T, Span<T>, Int32)ISparseLinearAlgebraOperations<T>.MultiplyAndAddInPlace(TransposeOperation, Int32, Int32, Int32, T, MatrixStructure, MatrixTriangle, MatrixDiagonal, ReadOnlySpan<T>, ReadOnlySpan<Int32>, ReadOnlySpan<Int32>, ReadOnlySpan<Int32>, ReadOnlySpan<T>, Int32, T, Span<T>, Int32)