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Old 12-23-2015, 02:36 PM   #233 (permalink)
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Originally Posted by P-hack View Post is the metric angle, i.e. centigrade, but the circle is divided by 400... I think I did one problem using gradians in my entire life.
Yeah, I still have an HP scientific calculator that will do angles in grads, though I can't remember ever having used the function.

The Wikipedia link mentions a couple of other metric system sillynesses that I hadn't thought of. First, they define the "gradian" as 1/100th of a quarter circle, thus making it inevitiable to use powers of 2 for half and full circles, while the very common 30 and 60 degree angles become infinitely-repeating decimals. And then they go and change the name of the centigrade temperature scale to avoid conflict with this system that almost nobody uses.
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