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

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. D.; ;