Signal Processing Blockset™

Reciprocal Condition - Compute reciprocal condition of square matrix in 1-norm

Library

Math Functions / Matrices and Linear Algebra / Matrix Operations

dspmtrx3

Description

The Reciprocal Condition block computes the reciprocal of the condition number for a square input matrix A.

y = rcond(A)					% Equivalent MATLAB code

or

where κ is the condition number (κ ≥ 1), and y is the scalar sample-based output (0 ≤ y < 1).

The matrix 1-norm, , is the maximum column-sum in the M-by-M matrix A.

For a 3-by-3 matrix:

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

See Also

Real Cepstrum

Remez FIR Filter Design (Obsolete)