QR factorization

[/ˌkjuː ˈɑːr ˌfæktərɪˈzeɪʃən/]
nounpl: QR factorizations
fatoração QR
1. A mathematical decomposition of a matrix into an orthogonal matrix Q and an upper triangular matrix R, commonly used in numerical linear algebra and solving linear systems
The QR factorization is widely used in computer graphics and least squares problems.
A fatoração QR é amplamente utilizada em gráficos de computador e problemas de mínimos quadrados.
2. A numerical technique for decomposing a rectangular matrix A as the product of an orthogonal (or unitary) matrix Q and an upper triangular matrix R
We applied QR factorization to solve the overdetermined system of linear equations.
Aplicamos fatoração QR para resolver o sistema overdeterminado de equações lineares.
QR factorization is a fundamental concept in computational mathematics taught in universities across both Brazil and the USA. In Brazilian academic settings, it appears frequently in engineering, computer science, and mathematics courses. The term is domain-specific and maintains consistent terminology across Portuguese and English-speaking scientific communities, making it a key concept in STEM education globally.
Synonyms / Sinônimos
QR decompositionorthogonal factorizationQR factorisation

Regional Variations

General Brazilian
fatoração QR
Standard terminology used in academic and computational mathematics contexts
Portugal
fatorização QR
Alternative spelling using 'fatorização' instead of 'fatoração'
USA
QR factorization
Standard English term in numerical analysis and linear algebra

Related Words

orthogonal matrixupper triangular matrixGram-Schmidt processHouseholder reflectionGivens rotationleast squareslinear algebramatrix decomposition
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