Documentation

qr

Orthogonal-triangular decomposition

Description

The Fixed-Point Designer™qrfunction differs from the MATLAB®qrfunction as follows:

  • The inputAinqr (A)must be a real, signedfiobject.

  • Theqrfunction ignores and discards anyfimathattached to the input. The output is always associated with the defaultfimath.

  • Pivoting is not supported for fixed-point inputs. You cannot use the following syntaxes:

    • [~,~,E] = qr(...)

    • qr(A,'vector')

    • qr(A,B,'vector')

  • Economy size decomposition is not supported for fixed-point inputs. You cannot use the following syntax:[Q,R] = qr(A,0).

  • The least-squares-solution form is not supported for fixed-point inputs. You cannot use the following syntax:qr(A,B).

Refer to the MATLABqrreference page for more information.

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using MATLAB® Coder™.

Introduced in R2014a

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Fixed-Point Designer Documentation
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