176 reputation
5
bio website sf.net/projects/simnation
location Brazil
age 35
visits member for 7 months
seen Aug 5 at 15:18

Programmer and biologist, I'd love to leave the world a little better than I've found it.


Jul
18
answered Some examples of applications of Game Theory
Jun
9
awarded  Student
Jun
9
comment Why is $\sin(\pi/6) = 0.5$?
Exactly my question... the "niceness" of 1/2, and also of the 30 degrees or pi/6... It could be that sin(29.451364571234...) would be 1/2... but @JimmyK4542 answer explained it well. There is such beauty in such "simple" matters that I still wonder how many mysteries we may draw from there...
Jun
9
comment Why is $\sin(\pi/6) = 0.5$?
There is a reason why we have 2 legs, not 4, but it's not as simple and elegant as geometry... :)
Jun
9
comment Why is $\sin(\pi/6) = 0.5$?
I was using the length of the bisector as 1, thus my confusion. Thank you all!
Jun
9
awarded  Scholar
Jun
9
awarded  Supporter
Jun
9
accepted Why is $\sin(\pi/6) = 0.5$?
Jun
9
comment Why is $\sin(\pi/6) = 0.5$?
Thanks, but you just repeated the theorem. How did Euclides get there? Why doesn't it give an irrational number, instead of exactly 1/2?
Jun
9
comment Why is $\sin(\pi/6) = 0.5$?
The perpendicular bisector divides the 60 degrees angle in two 30 degrees. So what? Sorry, I didn't get it.
Jun
9
asked Why is $\sin(\pi/6) = 0.5$?
Feb
3
answered Proof that the number of diagonals of a polygon is $\frac{n(n-3)}{2} $
Jan
15
awarded  Teacher
Jan
14
comment Splitting a sandwich and not feeling deceived
Yes, you're right. But considering the practicality of it, I still recommend my solution. Have you memorized the "Selfridge–Conway discrete procedure" to apply it in the real world in a moment of hunger? :)
Jan
14
comment Splitting a sandwich and not feeling deceived
The accident could happen cutting in two, too, even being an easier division. Anyway, @VividD asked for a "such mechanism", not for a "better one".
Jan
14
comment Splitting a sandwich and not feeling deceived
But why would that person do a large piece, if he/she wouldn't have the chance to eat it? He/she would try the hardest to make the 3 the same size.
Jan
14
answered Splitting a sandwich and not feeling deceived
Jan
13
awarded  Autobiographer