angles.m

华东理工大学自动化系《控制系统分析、设计和应用》教材配套程序实例,有关说明： 1. 安装MATLAB软件。安装时

function p = angles(h)
%ANGLE  Phase angle.
%   ANGLE(H) returns the phase angles, in radians, of a matrix with
%   complex elements.  
%
%   See also ABS, UNWRAP.

%   Copyright 1984-2000 The MathWorks, Inc. 
%   $Revision: 5.5 $  $Date: 2000/06/01 00:40:14 $

% Clever way:
% p = imag(log(h));

% Way we'll do it:
p = atan(imag(h), real(h));