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See the recommended documentation of this function

Scilab manual >> CACSD > equil

equil

balancing of pair of symmetric matrices

Calling Sequence

T=equil(P,Q)

Arguments

P, Q

two positive definite symmetric matrices

T

nonsingular matrix

Description

equil returns t such that:

T*P*T' and inv(T)'*Q*inv(T) are both equal to a same diagonal and positive matrix.

Examples

P=rand(4,4);P=P*P';
Q=rand(4,4);Q=Q*Q';
T=equil(P,Q)
clean(T*P*T')
clean(inv(T)'*Q*inv(T))
<< dtsi CACSD equil1 >>

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Last updated:
Wed Jan 26 16:23:41 CET 2011