Scilab 5.5.2
Please note that the recommended version of Scilab is 2025.0.0. This page might be outdated.
See the recommended documentation of this function
lcmdiag
least common multiple diagonal factorization
Calling Sequence
[N,D]=lcmdiag(H) [N,D]=lcmdiag(H,flag)
Arguments
- H
rational matrix
- N
polynomial matrix
- D
diagonal polynomial matrix
- flag
character string:
'row'
or'col'
(default)
Description
[N,D]=lcmdiag(H,'row')
computes a factorization D*H=N
,
i.e. H=D^(-1)*N
where D is a diagonal matrix with D(k,k)=lcm of
kth row of H('den').
[N,D]=lcmdiag(H)
or [N,D]=lcmdiag(H,'col)
returns
H=N*D^(-1)
with diagonal D and D(k,k)=lcm of kth col of H('den')
Examples
s=poly(0,'s'); H=[1/s,(s+2)/s/(s+1)^2;1/(s^2*(s+2)),2/(s+2)]; [N,D]=lcmdiag(H); N/D-H
See Also
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