qr:
	
Syntax:	qr( A )

Description:

	Qr computes the "skinny" QR decomposition of the input
	matrix A such that:

		Q * R = A

	A is an MxN matrix, where M >= N.

	Qr utilizes LAPACK subroutines DGEQRF and DORGQR for REAL
	inputs, and ZGEQRF and ZUNGQR for COMPLEX inputs.
