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    • BandMatrix Class
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  • MultiplyByTranspose Method
DenseMatrixMultiplyByTranspose Method Extreme Optimization Numerical Libraries for .NET Professional
Multiplies this DenseMatrix by its Transpose.

Namespace: Extreme.Mathematics.LinearAlgebra
Assembly: Extreme.Numerics.Net40 (in Extreme.Numerics.Net40.dll) Version: 6.0.16073.0 (6.0.17114.0)
Syntax

C#
VB
C++
F#
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public SymmetricMatrix MultiplyByTranspose()
Public Function MultiplyByTranspose As SymmetricMatrix
public:
SymmetricMatrix^ MultiplyByTranspose()
member MultiplyByTranspose : unit -> SymmetricMatrix 

Return Value

Type: SymmetricMatrix
A SymmetricMatrix that is the product of this DenseMatrix with its transpose.
Remarks

Some applications, for example the solution of a least squares problem using normal equations, require the product of a matrix with its own transpose. This method performs this operation.

The resulting matrix is always symmetrical and positive definite. This is why a SymmetricMatrix is returned, rather than a more general DenseMatrix.

This method uses the BLAS routine DSYRK.

Version Information

Numerical Libraries

Supported in: 5.x, 4.x
See Also

Reference

DenseMatrix Class
Extreme.Mathematics.LinearAlgebra Namespace

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