MX_DTRNSQ – Square matrix in-place transposition: A := alpha*A^T

Block SymbolLicensing group: STANDARD

Function Description
The function block MX_DTRNSQ transpose the scalar multiple of the square matrix referenced by uA in-place.

The output reference yA is always set to the corresponding input references uA. If HLD = on then nothing else is done otherwise the BLAS-like function X_DTRNSQ is called internally:

X_DTRNSQ(N, ALPHA, uA, LDA);

where parameters of X_DTRNSQ are set in the following way:

N is number of rows and columns of the matrix referenced by uA.
If the input alpha is equal to 0 then ALPHA is set to $1$ else ALPHA is set to alpha.
LDA is the leading dimension of the matrix referenced by uA.

The error flag E is set to on if:

the reference uA is not defined (i.e. input uA is not connected),
the matrix referenced by uA is not square,
the call of the function X_DTRNSQ returns error using the function XERBLA, see the system log.

Inputs

uA	Input reference to matrix A	Reference
alpha	Scalar coefficient alpha	Double (F64)
HLD	Hold	Bool

Outputs

yA	Output reference to matrix A	Reference
E	Error indicator	Bool

[Previous] [Back to top] [Up] [Next]