2013-10-27 22:24:23 +00:00
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require 'complex' # Superfluous in Ruby >= 2.0; complex is added to core.
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2013-04-10 14:58:50 -07:00
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def deg2rad(d)
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d * Math::PI / 180
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end
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def rad2deg(r)
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r * 180 / Math::PI
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end
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def mean_angle(deg)
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rad2deg((deg.inject(0) {|z, d| z + Complex.polar(1, deg2rad(d))} / deg.length).arg)
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end
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[[350, 10], [90, 180, 270, 360], [10, 20, 30]].each {|angles|
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puts "The mean angle of %p is: %f degrees" % [angles, mean_angle(angles)]
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}
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