SparseLinearAlgebraOperations.DotProduct Method

Definition

Namespace: Numerics.NET.LinearAlgebra.Implementation
Assembly: Numerics.NET (in Numerics.NET.dll) Version: 9.0.4

Overload List

DotProduct(Int32, ReadOnlySpan<Complex<Double>>, ReadOnlySpan<Int32>, Int32, ReadOnlySpan<Complex<Double>>, Int32)

Returns the dot product of a sparse and a dense vector.
C# 
public override Complex<double> DotProduct(
	int n,
	ReadOnlySpan<Complex<double>> x,
	ReadOnlySpan<int> indx,
	int m,
	ReadOnlySpan<Complex<double>> y,
	int yStride
)

Parameters

n  Int32
The number of elements in the vectors x and y.
x  ReadOnlySpan<Complex<Double>>
A reference to a one-dimensional array containing the elements of the vector x.
indx  ReadOnlySpan<Int32>
Integer array of component indices.
m  Int32
The length of the vector y.
y  ReadOnlySpan<Complex<Double>>
A reference to a one-dimensional array containing the elements of the vector y. The elements of y are overwritten with the result.
yStride  Int32
The distance between successive elements in y.

Return Value

Complex<Double>

Implements

ISparseLinearAlgebraOperations<T>.DotProduct(Int32, ReadOnlySpan<T>, ReadOnlySpan<Int32>, Int32, ReadOnlySpan<T>, Int32)
ISparseLinearAlgebraOperations<T>.DotProduct(Int32, ReadOnlySpan<T>, ReadOnlySpan<Int32>, Int32, ReadOnlySpan<T>, Int32)

DotProduct(Int32, ReadOnlySpan<Double>, ReadOnlySpan<Int32>, Int32, ReadOnlySpan<Double>, Int32)

Returns the dot product of a sparse and a dense vector.
C# 
public override double DotProduct(
	int n,
	ReadOnlySpan<double> x,
	ReadOnlySpan<int> indx,
	int m,
	ReadOnlySpan<double> y,
	int yStride
)

Parameters

n  Int32
The number of elements in the vectors x and y.
x  ReadOnlySpan<Double>
A reference to a one-dimensional array containing the elements of the vector x.
indx  ReadOnlySpan<Int32>
Integer array of component indices.
m  Int32
The length of the vector y.
y  ReadOnlySpan<Double>
A reference to a one-dimensional array containing the elements of the vector y. The elements of y are overwritten with the result.
yStride  Int32
The distance between successive elements in y.

Return Value

Double

Implements

ISparseLinearAlgebraOperations<T>.DotProduct(Int32, ReadOnlySpan<T>, ReadOnlySpan<Int32>, Int32, ReadOnlySpan<T>, Int32)
ISparseLinearAlgebraOperations<T>.DotProduct(Int32, ReadOnlySpan<T>, ReadOnlySpan<Int32>, Int32, ReadOnlySpan<T>, Int32)

See Also