Definition of "hacoversine" []

• The hacoversed sine (noun)

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• "The hacoversine has a twin which is just the covercosine divided by 2."
• "Like its cousin the haversine, the hacoversine is mainly useful for doing trig on a sphere when you don't have a calculator handy to square the familiar trig functions."
• ""That's a hacoversine, buddy." ha ha ha ha ha ha:) (Yes, this horrendous pun is my sole contribution here;)"