/usr/share/psychtoolbox-3/PsychSignal/ATand2.m is in psychtoolbox-3-common 3.0.11.20140816.dfsg1-1.
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1 2 3 4 5 6 7 8 | function ang = ATand2(y,x)
% ang = ATand2(y,x)
% returns angle from -180 to 180 degrees based on x an y coords
% degree version of atan2
% DN 2008-09-11 wrote it
ang = atan2(y,x)./pi.*180;
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