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I am wondering whether there is a ready subroutine in calculating matrix norm in lapack. It is needed when I try to calculate condition number calling lapack dgecon. Many thanks!

- bsmile
**Posts:**8**Joined:**Sat Dec 04, 2010 2:40 pm

Hi

DLANGE returns the value of the one norm, or the Frobenius norm, or

the infinity norm, or the element of largest absolute value of a

real matrix A.

Julien.

DLANGE returns the value of the one norm, or the Frobenius norm, or

the infinity norm, or the element of largest absolute value of a

real matrix A.

Julien.

- Julien Langou
**Posts:**794**Joined:**Thu Dec 09, 2004 12:32 pm**Location:**Denver, CO, USA

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