[eigen] QR factorization question

[Eric Chu <eytchu@xxxxxxxxx>]

hi all,

thanks for the great work. i recently updated my version of eigen, and the api's changed a bit from before.

more specifically, the qr factorization module has changed. i was wondering how i'd go about retrieving the upper triangular matrix "R" from a qr factorization.

that is, if i have an m x n matrix A, and i call

R = A.householderQr().matrixR();

the API seems to have deprecated this function call. i think i can call matrixQR() instead, but it's no longer upper triangular. any pointers?

thanks for all your help!

eric