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; ;