Hi to all...

This is my first post in this forum, and it's due to a problem I have with a routine of NR...

I'm translating the qrupdt() routine to Visual Basic, and the problem I have is that the routine doesn't work...I mean, I'm able to perform the QR decomposition, but when I want to update it, the routine doesn't update the Q or R matrices, and it returns the same values before the update...What could be the reason?

Thank you for your help....

Well...I have solved my problem...It was due to a misunderstanding about a line...so, it's al OK now ;)

See ya...