Page 1 of 1

which subroutine calculate matrix norm?

PostPosted: Thu Jul 19, 2012 3:08 pm
by bsmile
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!

Re: which subroutine calculate matrix norm?

PostPosted: Thu Jul 19, 2012 3:11 pm
by Julien Langou
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.