syr2k - Symmetric Matrix Rank-2k Update VI

Owning Palette: Basic Linear Algebra Subroutines VIs

Requires: Full Development System

Calculates the rank–2k update of a symmetric matrix.

The data types you wire to the A, B, and C inputs determine the polymorphic instance to use.

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Select an instance dsyr2k - Symmetric Matrix Rank-2k Update (DBL)zsyr2k - Symmetric Matrix Rank-2k Update (CDB)

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dsyr2k - Symmetric Matrix Rank-2k Update (DBL)

	operation specifies the operation the VI performs on matrices A and B, resulting in matrices op(A) and op(B). The default is Not Transposed. 0 Direct (default) 1 Conjugated & Transposed 2 Transposed
	A is a real matrix of dimensions N × K.
	B is a real matrix. op(B) must have the same dimensions as op(A).
	C is a real symmetric matrix of at least dimensions N × K, or K × N if you set operation to Transposed.
	matrix C type specifies whether to update the upper or lower triangular component of C. The default is Upper Triangular. 2 Lower Triangular—The VI uses only the lower triangular component of C to calculate the rank–2k update. 3 Upper Triangular (default)—The VI uses only the upper triangular component of C to calculate the rank–2k update.
	alpha is a real scalar that scales scale factor for A*B^T + B*A^T or A^T *B + B^T*A, where A^T represents A transposed. The default is 1.
	beta is a real scalar that scales C. The default is 1.
	dsyr2k is a real matrix of the same dimensions as C. For the elements in the first N rows and N columns of the triangular component you select for matrix C type, dsyr2k returns the results of the calculation. For any other elements, dsyr2k returns the value of the element in C with the same index.
	error returns any error or warning from the VI. You can wire error to the Error Cluster From Error Code VI to convert the error code or warning into an error cluster.

zsyr2k - Symmetric Matrix Rank-2k Update (CDB)

	operation specifies the operation the VI performs on matrices A and B, resulting in matrices op(A) and op(B). The default is Not Transposed. 0 Direct (default) 1 Conjugated & Transposed 2 Transposed
	A is a complex matrix of dimensions N × K.
	B is a complex matrix. op(B) must have the same dimensions as op(A).
	C is a complex symmetric matrix of at least dimensions N × K, or K × N if you set operation to Transposed.
	matrix C type specifies whether to update the upper or lower triangular component of C. The default is Upper Triangular. 2 Lower Triangular—The VI uses only the lower triangular component of C to calculate the rank–2k update. 3 Upper Triangular (default)—The VI uses only the upper triangular component of C to calculate the rank–2k update.
	alpha is a real scalar that scales scale factor for A*B^T + B*A^T or A^T *B + B^T*A, where A^T represents A transposed. The default is 1.
	beta is a complex scalar that scales C. The default is 1.
	zsyr2k is a complex matrix of the same dimensions as C. For the elements in the first N rows and N columns of the triangular component you select for matrix C type, zsyr2k returns the results of the calculation. For any other elements, zsyr2k returns the value of the element in C with the same index.
	error returns any error or warning from the VI. You can wire error to the Error Cluster From Error Code VI to convert the error code or warning into an error cluster.

syr2k - Symmetric Matrix Rank-2k Update Details

Refer to the BLAS (Basic Linear Algebra Subprograms) website at netlib.org for more information on BLAS functions.