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Amiga Format CD46 (1999-10-20)(Future Publishing)(GB)[!][issue 1999-12].iso
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riccati.5
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1999-09-16
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riccati(1) Scilab Function riccati(1)
NAME
riccati - Riccati equation
CALLING SEQUENCE
[X1,[X2]]=riccati(A,B,C,dom,[typ])
PARAMETERS
A,B,C : real matrices nxn, B and C symetric.
dom : 'c' or 'd' for the time domain (continuous or discrete)
typ : string : 'eigen' for block diagonalization or schur' for
Schur method.
DESCRIPTION
Riccati solver X=X1/X2 solves:
A'*X+X*A-X*B*X+C=0
in continuous time case, or:
A'*X*A-(A'*X*B1/(B2+B1'*X*B1))*(B1'*X*A)+C-X
with B=B1/B2*B1' in the discrete time case. If called with LHS=1 (one
output argument) riccati returns X.
SEE ALSO
ric_desc