/usr/share/freemat/toolbox/trig/angle.m is in freemat-data 4.0-5.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | % ANGLE ANGLE Phase Angle Function
%
% Usage
%
% Compute the phase angle in radians of a complex matrix. The general
% syntax for its use is
%
% p = angle(c)
%
% where c is an n-dimensional array of numerical type.
% Copyright (c) 2002-2007 Samit Basu
% Licensed under the GPL
function p = angle(c)
p = atan2(imag(c), real(c));
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