Pseudoinverse
Compute Moore-Penrose pseudoinverse of matrix
Library
Math Functions / Matrices and Linear Algebra / Matrix Inverses
dspinverses
Description
The Pseudoinverse block computes the Moore-Penrose pseudoinverse of input matrix A.
[U,S,V] = svd(A,0) % Equivalent MATLAB code
The pseudoinverse of A is the matrix such that
where U and V are orthogonal matrices, and S is a diagonal matrix. The pseudoinverse has the following properties:
Parameters
- Show error status port
Select to enable the E output port, which reports a failure to converge. The possible values you can receive on the port are:
0— The pseudoinverse calculation converges.1— The pseudoinverse calculation does not converge.
If the pseudoinverse calculation fails to converge, the output at port X is an undefined matrix of the correct size.
- Simulate using
Type of simulation to run. You can set this parameter to:
Interpreted execution(default)Simulate model using the MATLAB® interpreter. This option shortens startup time. For this block, the simulation speed in this mode is faster than in
Code generation.Code generationSimulate model using generated C code. The first time you run a simulation, Simulink® generates C code for the block. The C code is reused for subsequent simulations, as long as the model does not change. This option requires additional startup time but the simulation speed increases with subsequent simulations.
References
Golub, G. H., and C. F. Van Loan. Matrix Computations. 3rd ed. Baltimore, MD: Johns Hopkins University Press, 1996.
Supported Data Types
| Port | Supported Data Types |
|---|---|
A |
|
X |
|
E |
|
See Also
| Cholesky Inverse | DSP System Toolbox |
| LDL Inverse | DSP System Toolbox |
| LU Inverse | DSP System Toolbox |
| Singular Value Decomposition | DSP System Toolbox |
inv | MATLAB |
See Matrix Inverses for related information.