ISparse Linear Algebra Operations<T>.Multiply And Add In Place Method
Definition
Namespace: Extreme.Mathematics.LinearAlgebra.Implementation
Assembly: Extreme.Numerics (in Extreme.Numerics.dll) Version: 8.1.23
Assembly: Extreme.Numerics (in Extreme.Numerics.dll) Version: 8.1.23
Overload List
Multiply | Multiplies a dense vector by a sparse matrix in Compressed Sparse Column (CSC) format. |
Multiply | Multiplies a dense matrix by a sparse matrix in Compressed Sparse Column (CSC) format. |
MultiplyAndAddInPlace(TransposeOperation, Int32, Int32, T, MatrixStructure, MatrixTriangle, MatrixDiagonal, T[], Int32[], Int32[], Int32[], ArraySlice<T>, T, ArraySlice<T>)
Multiplies a dense vector by a sparse matrix in Compressed Sparse Column (CSC) format.
void MultiplyAndAddInPlace(
TransposeOperation transA,
int m,
int k,
T alpha,
MatrixStructure structure,
MatrixTriangle storedTriangle,
MatrixDiagonal matrixDiagonal,
T[] a,
int[] aRows,
int[] aPointerB,
int[] aPointerE,
ArraySlice<T> x,
T beta,
ArraySlice<T> y
)
Parameters
- transA TransposeOperation
- Specifies the operation to be performed on the matrix a.
- m Int32
- The number of rows in the matrix a.
- k Int32
- The number of columns in the matrix a.
- alpha T
- The scalar used to multiply the matrix-vector 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 T[]
- Reference to the first element in a one-dimensional array that contains the elements of the matrix.
- aRows Int32[]
- Integer array that contains the 1-based row indices of the corresponding elements of a.
- aPointerB Int32[]
- Integer array of length m containing the 1-based indices into a of the first component of each column.
- aPointerE Int32[]
- Integer array of length m containing the 1-based indices into a of the first component of each column.
- x ArraySlice<T>
- A reference to a one-dimensional array containing the elements of the vector x.
- beta T
- The scalar used to multiply y.
- y ArraySlice<T>
- A reference to a one-dimensional array containing the elements of the vector y. The elements of y are overwritten with the result.
MultiplyAndAddInPlace(TransposeOperation, Int32, Int32, Int32, T, MatrixStructure, MatrixTriangle, MatrixDiagonal, T[], Int32[], Int32[], Int32[], Array2D<T>, T, Array2D<T>)
Multiplies a dense matrix by a sparse matrix in Compressed Sparse Column (CSC) format.
void MultiplyAndAddInPlace(
TransposeOperation transA,
int m,
int n,
int k,
T alpha,
MatrixStructure structure,
MatrixTriangle storedTriangle,
MatrixDiagonal matrixDiagonal,
T[] a,
int[] aRows,
int[] aPointerB,
int[] aPointerE,
Array2D<T> b,
T beta,
Array2D<T> c
)
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 T
- 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 T[]
- Reference to the first element in a one-dimensional array that contains the elements of the matrix.
- aRows Int32[]
- Integer array that contains the 1-based row indices of the corresponding elements of a.
- aPointerB Int32[]
- Integer array of length n containing the 1-based indices into a of the first component of each column.
- aPointerE Int32[]
- Integer array of length n containing the 1-based indices into a of the first component of each column.
- b Array2D<T>
- A reference to a one-dimensional array containing the elements of the matrix b.
- beta T
- The scalar used to multiply c.
- c Array2D<T>
- A reference to a one-dimensional array containing the elements of the matrix c. The elements of c are overwritten with the result.