/sci/ - Science & Math

/sci/ - Science & Math
Text Board: /sci/

Posting mode: Reply

[Return] [Bottom]

File: 1335571290.jpg-(35 KB, 342x506, 1330718798467.jpg)

Anonymous 04/27/12(Fri)20:01 No.4623288

Why did we define pi to be 3.14? Why not 3? Much of math would be easier with pi=3.

>>	Anonymous 04/27/12(Fri)20:02 No.4623292 babby's first troll

>>	Anonymous 04/27/12(Fri)20:06 No.4623302 Why can't eulers number be just 2. It would make things so much easier.

>>	Anonymous 04/27/12(Fri)20:07 No.4623304 File: 1335571624.jpg-(7 KB, 251x242, 1311295797373.jpg) >>4623288 Fucking retard it's 22/7 it's on 3.14. And they made it that way because if pi=3 our wheels would be oblong.

>>	Anonymous 04/27/12(Fri)20:07 No.4623305 Why can't all numbers just be 1? Much of math would be easier if everything was equal to 1.

>>	Anonymous 04/27/12(Fri)20:07 No.4623306 Why can't avogardos constant be just 6. It would be so much easier!

>>	Anonymous 04/27/12(Fri)20:07 No.4623310 >thinking multiplying three digit numbers is difficult. Back to the third grade with you.

>>	Anonymous 04/27/12(Fri)20:07 No.4623312 Because pi is a dimensionless quantity

>>	Anonymous 04/27/12(Fri)20:09 No.4623317 and while we're at it, exponents are kinda hard, so let's make it E=mc and the force of gravity, how about 10m/s instead of 9.8m/s^2? grand unified field theory? it's 1+1=the universe, because it's easy.

>>	Anonymous 04/27/12(Fri)20:10 No.4623318 Why can't all words just be why? it would why why why why why why!

>>	Anonymous 04/27/12(Fri)20:10 No.4623319 File: 1335571817.png-(48 KB, 350x494, piequals4.png) But pi is 4.

>>	Anonymous 04/27/12(Fri)20:13 No.4623330 >>4623318 why is 3 whole letters, we should make all words x xxxxxxx? xxxxxxxxxxxxxxxxxxxxxxxxx, xxxxxxxxxxxxxxxxxxx. xxxxxxxxxxxx!

>>	Anonymous 04/27/12(Fri)20:16 No.4623341 OP here. What I meant is pi is perimeter of a circle divided by radius. Why don't we choose a bigger circle to define pi, so that the radius is big enough to make pi=3?

>>	Anonymous 04/27/12(Fri)20:18 No.4623354 >>4623341 You're improving, keep it up.

>>	Anonymous 04/27/12(Fri)20:18 No.4623357 >>4623341 OMG please tell me you are trolling !!!!

>>	Anonymous 04/27/12(Fri)20:19 No.4623364 >>4623341 It's a constant relation, pick any circle and try it.

>>	Anonymous 04/27/12(Fri)20:20 No.4623367 >>4623341 Doesn't work. Pi just IS 3.14... If you use a smaller radius, the perimeter of the circle will be smaller too, so that Pi always stays 3.14...

>>	Anonymous 04/27/12(Fri)20:20 No.4623369 >>4623357 he is now quit falling for it, Jacques, et retourne te coucher

>>	Anonymous 04/27/12(Fri)20:23 No.4623382 Non-Euclidean geometry: Elaborate troll?

>>	Anonymous 04/27/12(Fri)20:25 No.4623389 The real question is: Why can't 1 just be 0.999999...9? Oh wait, it already is.

>>	Anonymous 04/27/12(Fri)20:26 No.4623395 >>4623389 1 = 0.99999... 1 != 0.99999...9

>>	Anonymous 04/27/12(Fri)20:28 No.4623404 >>4623395 >...9 No. It doesn't work that way. There is no "last" number in an infinite set. Otherwise the implied [...] is lying.

>>	Anonymous 04/27/12(Fri)20:28 No.4623405 >>4623395 0.999...999... =/= 0.999...999...9

Anonymous 04/27/12(Fri)20:36 No.4623437

Disregarding the troll, it really is interesting to think about seemingly-magical numbers like pi and e.

Like... what makes them so special? Why is 3.1427 such a crucial number for circles and shit? All numbers should theoretically be equally important or unimportant, but that's not so.... Are there any more "magical" numbers yet to be discovered?

>>	Anonymous 04/27/12(Fri)20:36 No.4623439 >>4623319 i like this

>>	Anonymous 04/27/12(Fri)20:37 No.4623445 >>4623437 >special numbers >doesn't mention the golden ratio

>>	Anonymous 04/27/12(Fri)20:38 No.4623450 >>4623439 how is this NOT true? i get that it isn't but t almost makes sense...

>>	Anonymous 04/27/12(Fri)20:38 No.4623451 >>4623288 Well he has a point Teachers are always "dont use the pi symbol on calculator cuz 3.14 is better" >logic I never got that

>>	Anonymous 04/27/12(Fri)20:39 No.4623455 >>4623445 >implying the golden RATIO is a number

>>	Anonymous 04/27/12(Fri)20:40 No.4623460 >>4623437 I suppose that if we ended up using a different base number system, these important numbers would be different. But I get your point, and am also interested.

>>	Anonymous 04/27/12(Fri)20:40 No.4623465 >>4623450 The perimeter of any object is equal to that of a rectangle circumscribing it

>>	Anonymous 04/27/12(Fri)20:41 No.4623466 >>4623455 Well, 1.618... is a number. And it's a super special one too. Plus the golden ratio is just 1/1.618... It's fucking everywhere.

>>	Anonymous 04/27/12(Fri)20:41 No.4623469 >>4623466 Infinity is another example of a very special number.

>>	Anonymous 04/27/12(Fri)20:42 No.4623472 >mfw i just today learned that the sqrt(17) can be expressed x^2 - 17 = 0

>>	Anonymous 04/27/12(Fri)20:43 No.4623475 >>4623472 Aren't 10 year olds supposed to be in bed now?

>>	Anonymous 04/27/12(Fri)20:45 No.4623486 >>4623475 >implying 10 year olds learn Newton's method >implying 10 year olds even take calculus at all

>>	Anonymous 04/27/12(Fri)20:46 No.4623490 >>4623486 >implying square roots are calculus >implying calculus isn't stuff for 10 year olds as well Go to bed, underageb&.

>>	Anonymous 04/27/12(Fri)20:46 No.4623491 File: 1335574011.jpg-(18 KB, 267x360, jacob barnett's shit eating gr(...).jpg) >>4623486 >implying they don't

>>	Anonymous 04/27/12(Fri)20:47 No.4623492 >>4623486 How the fuck is that calculus? x^2=17 sqrt(x^2)=sqrt(17) x=sqrt(17)

>>	Anonymous 04/27/12(Fri)20:47 No.4623493 Pi isn't defined at 3.14, it's defined as a transcendental, irrational number with the first 3 digits being 3.14

>>	Anonymous 04/27/12(Fri)20:47 No.4623495 >>4623469 it's too high, and too confusing. let's set it to a million plus one.

>>	Anonymous 04/27/12(Fri)20:47 No.4623497 >>4623492 You are retarded. sqrt(x^2)=\|x\| and not x

>>	Anonymous 04/27/12(Fri)20:48 No.4623498 >>4623450 Basically because the result isn't a circle, it's an infinite-sided polygon.

>>	Anonymous 04/27/12(Fri)20:49 No.4623501 >>4623497 Let me have a go! x = sqrt(17) x² = 17 x² - 17 = 0

>>	Anonymous 04/27/12(Fri)20:49 No.4623503 >>4623498 >doesn't understand limits

>>	Anonymous 04/27/12(Fri)20:50 No.4623505 >>4623492 >>4623490 >implying Newton's method can't be used to estimate the sqrt(17) f(x) = x^2 - 17 = 0 x_0 = 4 x_1 = x_0 - (f(x_0) / f'(x_0)) = 4.125 etc.

>>	Anonymous 04/27/12(Fri)20:50 No.4623507 >>4623501 Doesn't work if x is negative.

>>	Anonymous 04/27/12(Fri)20:51 No.4623509 >>4623503 They're not equivalent.

>>	Anonymous 04/27/12(Fri)20:52 No.4623510 >>4623507 yes it does

>>	Anonymous 04/27/12(Fri)20:52 No.4623511 >>4623507 I think it does...

>>	Anonymous 04/27/12(Fri)20:52 No.4623513 >>4623505 It is also called Heron's method and 2000 years old.

>>	Anonymous 04/27/12(Fri)20:52 No.4623514 >>4623497 you double nigger i didn't know how to make the plus/minus symbol

>>	Anonymous 04/27/12(Fri)20:53 No.4623520 >>4623505 You're so cool for knowing Newton's method.

>>	Anonymous 04/27/12(Fri)20:55 No.4623524 >>4623319 pi = factorial 4? Doesn't make any sense.

>>	Anonymous 04/27/12(Fri)20:55 No.4623526 No-one remembers Raphson ;_;

>>	Anonymous 04/27/12(Fri)20:56 No.4623530 >>4623498 wouldn't it be a finite, but very large number of sides equal to the planck length? or am i overthinking?

>>	Anonymous 04/27/12(Fri)20:58 No.4623535 >>4623530 >using real physics with geometric figures Yup, overthinking it. Circles the theoretical.

>>	Anonymous 04/27/12(Fri)21:00 No.4623538 >>4623535 gotcha.

Anonymous 04/27/12(Fri)21:01 No.4623542

>>4623536
Consider the sequence 1 + 1/2 + 1/4 + 1/8 + 1/16 + ...

I trust you'll agree this is infinite, as signified by the dots.
I trust you'll also agree the total is clearly 2.
Just because one thing is infinite, doesn't mean something else related to it can't be finite.

>>	Anonymous 04/27/12(Fri)21:09 No.4623560 >>4623498 >>4623319 I wonder if the relationship between 4 and pi has any significance? Either the difference, 0.8584, or the ratio, 1.2732, or something...

[Return] [Top]

Delete Post [File Only]
Password

Style [Yotsuba | Yotsuba B | Futaba | Burichan]