Hallo,

for me it seems to be too complicated to solve X*A=B, like A'*X'=B' with DTRTRS. Moreover A is triangular and with B are parts of one matrix. How to solve this "standardized" problem efficient?

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Hallo,

for me it seems to be too complicated to solve X*A=B, like A'*X'=B' with DTRTRS. Moreover A is triangular and with B are parts of one matrix. How to solve this "standardized" problem efficient?

for me it seems to be too complicated to solve X*A=B, like A'*X'=B' with DTRTRS. Moreover A is triangular and with B are parts of one matrix. How to solve this "standardized" problem efficient?

- ottapav
**Posts:**3**Joined:**Sat Sep 03, 2011 4:23 pm

Hi,

Did you try to call the BLAS routine: DTRSM directly?

Julie

Did you try to call the BLAS routine: DTRSM directly?

- Code: Select all
`* DTRSM solves one of the matrix equations`

*

* op( A )*X = alpha*B, or X*op( A ) = alpha*B,

*

* where alpha is a scalar, X and B are m by n matrices, A is a unit, or

* non-unit, upper or lower triangular matrix and op( A ) is one of

*

* op( A ) = A or op( A ) = A**T.

*

* The matrix X is overwritten on B.

Julie

- admin
- Site Admin
**Posts:**501**Joined:**Wed Dec 08, 2004 7:07 pm

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