home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Amiga Format CD 46
/
Amiga Format CD46 (1999-10-20)(Future Publishing)(GB)[!][issue 1999-12].iso
/
-in_the_mag-
/
reader_requests
/
scilab
/
man
/
man-part2
/
cat1
/
nlev.1
< prev
next >
Wrap
Text File
|
1999-09-16
|
610b
|
67 lines
nlev(1) Scilab Function nlev(1)
NAME
nlev - Leverrier's algorithm
CALLING SEQUENCE
[num,den]=nlev(A,z [,rmax])
PARAMETERS
A : real square matrix
z : character string
rmax : optional parameter (see bdiag)
DESCRIPTION
[num,den]=nlev(A,z [,rmax]) computes:
(z*eye-A)^(-1)
by block diagonalization of A followed by Leverrier's algorithm on each
block.
Remark
This algorithm is better than leverrier but still not perfect!
SEE ALSO
leverrier, coff, coffg, glever, ss2tf
AUTHOR
F. D., S. S.