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

Block SymbolLicensing group: STANDARD
PIC

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

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