Scilab Function
Last update : 28/09/2007
polar - polar form
Calling Sequence
-
[Ro,Theta]=polar(A)
Parameters
-
A
: real or complex square matrix
-
Ro,
: real matrix
-
Theta,
: real or complex matrix
Description
[Ro,Theta]=polar(A)
returns the polar form of
A
i.e.
A=Ro*expm(%i*Theta)
Ro
symmetric >=0 and
Theta
hermitian
>=0.
Examples
A=rand(5,5);
[Ro,Theta]=polar(A);
norm(A-Ro*expm(%i*Theta),1)
See Also
expm
,
svd
,
Author
F. Delebecque INRIA; ;