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What (who) is qr - definition
WIKIMEDIA DISAMBIGUATION PAGE
Qr; QR (disambiguation); Q.R.; Q.r.; Qr.; Q R
qr
¦ abbreviation quarter(s).
QR (album)
ALBUM BY QUIET RIOT
Callin' the Shots; I'm Fallin; Lunar Obsession; Don't Wanna Be Your Fool; Coppin' a Feel; In a Rush (song); Empty Promises; Quiet Riot (1988 album); Stay with Me Tonight (Quiet Riot song)
QR (also known as Quiet Riot, Quiet Riot IV, or QR IV) is the sixth studio album released on October 21, 1988 by the American heavy metal band Quiet Riot. The album featured a major line-up change.
QR decomposition
MATRIX DECOMPOSITION
QR factorization; QR factorisation; LQ decomposition; RQ decomposition; QL decomposition; QRD; QR Factorization; Qr factorization; QR Decomposition; Qr decomposition; Qr Decomposition
In linear algebra, a QR decomposition, also known as a QR factorization or QU factorization, is a decomposition of a matrix A into a product A = QR of an orthogonal matrix Q and an upper triangular matrix R. QR decomposition is often used to solve the linear least squares problem and is the basis for a particular eigenvalue algorithm, the QR algorithm.
Examples of use of qr
1. Deposits in foreign currencies grew by 21 percent in 2004 to QR'.6 billion.
2. However, on his arrival, the company informed him that it was prepared to give only QR 1200, he claimed.
3. Technology is being developed, by companies such as Australia‘s QR Sciences, that can detect explosive substances such as nitrogen.
4. Anwar who arrived in Qatar eight months ago on a work visa of a construction company was offered a monthly payment of QR 2000.
5. The daily Philippine Star, in a report published yesterday, said authorities had postponed flight QR 645‘s departure to Doha on Sunday morning after a member of the crew found a mouse darting across the aisle in the economy section.