MB_DGER – Performs A := alpha*x*y^T + A

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PIC

Function Description
The output references yX, yY and yA are always set to the corresponding input references uX, uY and uA. If HLD = on then nothing is computed otherwise the BLAS function DGER is called internally:

DGER(M, N, alpha, uX, INCX, uY, INCY, uA, LDA);

where parameters of DGER are set in the following way:

  • M is number of rows of the matrix referenced by uA.
  • N is number of columns of the matrix referenced by uA.
  • If the input incx0 then INCX is set to incx else INCX is set to 1.
  • If the input incy0 then INCY is set to incy else INCY is set to 1.
  • LDA is the leading dimension of matrix referenced by uA.

The error flag E is set to on if:

  • the reference uX or uY or uA is not defined (i.e. input uX or uY or uA is not connected),
  • the call of the function DGER returns error using the function XERBLA, see the system log.

See BLAS documentation [7] for more details.

Inputs

uX

Input reference to vector x

Reference

uY

Input reference to vector y

Reference

uA

Input reference to matrix A

Reference

incx

Index increment of vector x

Long (I32)

incy

Index increment of vector y

Long (I32)

alpha

Scalar coefficient alpha

Double (F64)

HLD

Hold

Bool

Outputs

yX

Output reference to vector x

Reference

yY

Output reference to vector y

Reference

yA

Output reference to matrix A

Reference

E

Error indicator

Bool

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