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Trig Functions



#13

This from the Onion,


and this from Scientific American .


#14

Nice :)

#15

Cute but I would not write home about it!!!

I was dabbling with DEFINING NEW TRIG FUNCTIONS recently, and I tell you that coming up with zinger functions IS NOT EASY!!!

Namir

#16

How did our space program ever get going without them?! Idiotic.


#17

Very idiotic!!!!


#18

Yeah, but they have fun names! My favorite semi-obscure mathematics terms are 'subtrahend' and 'minuend'. I think everyone from my generation learned them in grade school in the USA but most promptly forgot them since they were never used again. I always thought that they would make excellent names for a pair of small dogs.

Edited: 14 Sept 2013, 9:10 p.m.


#19

Obscure? I filled entire pages of subtrahend and minuend in my firsts grades, just to memorize those terms. Damn teacher.

Edited: 15 Sept 2013, 4:34 p.m. after one or more responses were posted


#20

Here (in Brazil) we call them minuendo and subtraendo. I've just correctly guessed what the latter should be in Italian: sottraendo. This makes for a nice mnemonic. From Wikipedia:

--------------------------------

Per fare una sottrazione in colonna bisogna prima scrivere il minuendo, e sotto, il sottraendo: 86 - 34 = 52

86-
34=
--
52
--------------------------------

These were taught in first or second grade, I think. Good old days when memory was always fresh and neurons worked at full speed :-)

#21

Well done Gerson, A+ or, as we were used here, 10+


:)


#22

Grazie, Massimo! :-)

Numeric grades are used here as well, but for a while we had alpha grades in high-school, which I disliked.

#23

LOL. I loved the Onion article.

#24

Some of those "new" trig functions were used by surveyors in the pre-computer days and may still be used by them from time to time. I was introduced to them when I took Surveying I & II in college. But, since I'm a civil engineer and I have a computer, I have no need for them any more.


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