Extract Diagonal

Extract main diagonal of input matrix

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  • Library:

  • DSP System Toolbox / Math Functions / Matrices and Linear Algebra / Matrix Operations

  • Extract Diagonal block

Description

The Extract Diagonal block populates the unoriented output vector with the elements on the main diagonal of the M-by-N input matrix A. Equivalent MATLAB® code is given by:

D = diag(A)

Ports

Input

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Input matrix to extract the diagonal from, specified as a scalar, vector, or matrix .

Data Types: single | double | int8 | int16 | int32 | uint8 | uint16 | uint32 | Boolean | fixed point
Complex Number Support: Yes

Output

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Output vector of each diagonal element.

The output is the same data type and complexity as the input. The output vector has length min(M,N).

Data Types: single | double | int8 | int16 | int32 | uint8 | uint16 | uint32 | Boolean | fixed point
Complex Number Support: Yes

Model Examples

Extract Diagonal of Matrix

Extract Diagonal of Matrix

Simulink® model example that shows how to extract the main diagonal of a matrix.

Block Characteristics

Data Types

Boolean | double | fixed point | integer | single

Direct Feedthrough

no

Multidimensional Signals

no

Variable-Size Signals

no

Zero-Crossing Detection

no

Extended Capabilities

Fixed-Point Conversion
Design and simulate fixed-point systems using Fixed-Point Designer™.

See Also

Functions

Topics

Introduced before R2006a

DSP System Toolbox Documentation

Support