qr

Orthogonal-triangular decomposition

Description

The Fixed-Point Designer™ qr function differs from the MATLAB^® qr function as follows:

• The input A in qr(A) must be a real, signed fi object.

• The qr function ignores and discards any fimath attached to the input. The output is always associated with the default fimath.

• 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 MATLAB qr reference page for more information.

Extended Capabilities

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

Version History

Introduced in R2014a