ILinearAlgebraOperations<T>.MultiplyAndAddInPlace Method

Definition

Namespace: Extreme.Mathematics.LinearAlgebra.Implementation
Assembly: Extreme.Numerics (in Extreme.Numerics.dll) Version: 8.1.23

Overload List

MultiplyAndAddInPlace(Int32, T, ArraySlice<T>, ArraySlice<T>) Evaluates a vector plus the product of a scalar and a vector
MultiplyAndAddInPlace(TransposeOperation, Int32, Int32, T, Array2D<T>, ArraySlice<T>, T, ArraySlice<T>) Sum of the product of a general matrix and vector and a scaled vector.
MultiplyAndAddInPlace(TransposeOperation, TransposeOperation, Int32, Int32, Int32, T, Array2D<T>, Array2D<T>, T, Array2D<T>) Sum of the product of two general matrices and a scaled matrix.

MultiplyAndAddInPlace(Int32, T, ArraySlice<T>, ArraySlice<T>)

Evaluates a vector plus the product of a scalar and a vector
C# 
void MultiplyAndAddInPlace(
	int n,
	T alpha,
	ArraySlice<T> x,
	ArraySlice<T> y
)

Parameters

n  Int32
The number of elements in the vectors x and y.
alpha  T
The scalar value used to multiply the elements of x.
x  ArraySlice<T>
A reference to a one-dimensional array containing the elements of the vector x.
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, T, Array2D<T>, ArraySlice<T>, T, ArraySlice<T>)

Sum of the product of a general matrix and vector and a scaled vector.
C# 
void MultiplyAndAddInPlace(
	TransposeOperation transposeOperation,
	int m,
	int n,
	T alpha,
	Array2D<T> a,
	ArraySlice<T> x,
	T beta,
	ArraySlice<T> y
)

Parameters

transposeOperation  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 a.
alpha  T
The scalar used to multiply the matrix-vector product.
a  Array2D<T>
Reference to the first element in a one-dimensional array that contains the elements of the matrix.
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.

Remarks

This method is similar to the BLAS routine DGEMV.

MultiplyAndAddInPlace(TransposeOperation, TransposeOperation, Int32, Int32, Int32, T, Array2D<T>, Array2D<T>, T, Array2D<T>)

Sum of the product of two general matrices and a scaled matrix.
C# 
void MultiplyAndAddInPlace(
	TransposeOperation transA,
	TransposeOperation transB,
	int m,
	int n,
	int k,
	T alpha,
	Array2D<T> a,
	Array2D<T> b,
	T beta,
	Array2D<T> c
)

Parameters

transA  TransposeOperation
Specifies the operation to be performed on the matrix a.
transB  TransposeOperation
Specifies the operation to be performed on the matrix b.
m  Int32
The number of rows in the matrix a transformed as specified by transA, and the matrix c.
n  Int32
The number of columns in the matrix b transformed as specified by transB, and the matrix c.
k  Int32
The number of columns in the matrix a transformed as specified by transA, and the number of rows of the matrix b transformed as specified by transB.
alpha  T
The scalar used to multiply the matrix-vector product.
a  Array2D<T>
Reference to the first element in a one-dimensional array that contains the elements of the first matrix.
b  Array2D<T>
Reference to the first element in a one-dimensional array that contains the elements of the second matrix.
beta  T
The scalar used to multiply c.
c  Array2D<T>
Reference to the first element in a one-dimensional array that contains the elements of the third matrix.

See Also