No you're not. You're just making up tore own statistics. If mathematician can't recite it quickly, she can certainly develop the formula. Really, trigonometry?

No you're not. You're just making up tore own statistics. If mathematician can't recite it quickly, she can certainly develop the formula. Really, trigonometry? This is pretty simple stuff. Is it that the surprising to some of you that there are "programmers" on "HackerNews" that might, at whatever age, still know such elementary mathematics?