function angle=cr2angle(cr,t,f)% cr2angle -- convert a chirp rate to an angle in the t-f plane%%  Usage%    angle = cr2angle(cr, t, f)%%  Inputs%    cr    chirp rate%    t     time range%    f     frequency range%%  Outputs%    angle   angle in t-f plane (in degrees)% Copyright (C) -- see DiscreteTFDs/Copyrighterror(nargchk(3,3,nargin));angle = 360/2/pi*atan(cr*t/f);