DSP Blockset

LU Inverse

Compute the inverse of a square matrix using LU factorization.

Library

Math Functions / Matrices and Linear Algebra / Matrix Inverses

Description

The LU Inverse block computes the inverse of the square input matrix A by factoring and inverting row-pivoted variant A_p.

L is a lower-triangular square matrix with unity diagonal elements, and U is an upper-triangular square matrix. The block's output is A^-1, and is always sample-based.

Dialog Box

References

Golub, G. H., and C. F. Van Loan. Matrix Computations. 3rd ed. Baltimore, MD: Johns Hopkins University Press, 1996.

Supported Data Types

• Double-precision floating point
• Single-precision floating point

To learn how to convert to the above data types in MATLAB and Simulink, see Supported Data Types and How to Convert to Them.

See Also

Cholesky Inverse	DSP Blockset
LDL Inverse	DSP Blockset
LU Factorization	DSP Blockset
LU Solver	DSP Blockset
inv	MATLAB

See Inverting Matrices for related information. Also see Matrix Inverses for a list of all the blocks in the Matrix Inverses library.

LU Factorization

LU Solver