LU Inverse

Compute inverse of square matrix using LU factorization


Math Functions / Matrices and Linear Algebra / Matrix Inverses



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


L is a lower triangular square matrix with unity diagonal elements, and U is an upper triangular square matrix. The block outputs the inverse matrix A-1.


See Find the Inverse of a Matrix Using the LU Inverse Block in the DSP System Toolbox™ User's Guide.

Dialog Box


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

See Also

Cholesky InverseDSP System Toolbox
LDL InverseDSP System Toolbox
LU FactorizationDSP System Toolbox
LU SolverDSP System Toolbox

See Matrix Inverses for related information.

Was this topic helpful?