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Initial data commit

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Ingy döt Net 2023-07-01 11:58:00 -04:00
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Task/Averages-Mean-angle/Factor/averages-mean-angle.factor Normal file
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USING: formatting kernel math math.functions math.libm math.trig
sequences ;
: mean-angle ( seq -- x )
[ deg>rad ] map [ [ sin ] map-sum ] [ [ cos ] map-sum ]
[ length ] tri recip [ * ] curry bi@ fatan2 rad>deg ;
: show ( seq -- )
dup mean-angle "The mean angle of %u is: %f°\n" printf ;
{ { 350 10 } { 90 180 270 360 } { 10 20 30 } } [ show ] each