bdschur - Block-diagonal Schur factorization
Syntax
[T,B,BLKS] = bdschur(A,CONDMAX)
[T,B] = bdschur(A,[],BLKS)
Description
[T,B,BLKS] = bdschur(A,CONDMAX) computes
a transformation matrix T such that
is block diagonal and each diagonal
block is a quasi upper-triangular Schur matrix.
[T,B] = bdschur(A,[],BLKS) pre-specifies
the desired block sizes. The input matrix A should already be
in Schur form when you use this syntax.
Input Arguments
A: Matrix for block-diagonal Schur
factorization.
CONDMAX: Specifies an upper bound
on the condition number of T. By default, CONDMAX
= 1/sqrt(eps). Use CONDMAX to control
the tradeoff between block size and conditioning of T with
respect to inversion. When CONDMAX is a larger
value, the blocks are smaller and T becomes more
ill-conditioned.
Output Arguments
See Also
ordschur, schur
 | bandwidth | | blkdiag |  |
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