Scratch

bharvey wrote:

So, am I crazy or what?

I assumed that was a given...

Hardmath123 wrote:

nonretina MacBook Pro

Meh, I hear they're disappointing anyway 

Now modify it to support notification center!

Go ahead!    Or just tweak Growl to use Notification Center... 

Doesn't it guzzle internet?

It makes a single HTTP request every minute (unless there's a new page).

I can already see the stylized "S" character on my menu bar.

That would indeed be cool! Let me know when it's done 

Hardmath123 wrote:

314 pages! Celebrate! It's going to be a while until 3,141 pages, right?

Everyone makes such a fuss over pi, and nobody ever notices the neglected younger sibling e, which is (imho) much more important mathematically.  But someday it'll be e whose foot fits in the glass slipper and who gets to marry the prince.

bharvey wrote:

Hardmath123 wrote:

314 pages! Celebrate! It's going to be a while until 3,141 pages, right?

Everyone makes such a fuss over pi, and nobody ever notices the neglected younger sibling e, which is (imho) much more important mathematically.  But someday it'll be e whose foot fits in the glass slipper and who gets to marry the prince.

Agreed.

(That list inspired a Scratch project of mine…)

Last edited by Hardmath123 (2013-04-11 10:59:46)

That's phi…

blob8108 wrote:

mu.org/~doug wrote:

9) pi ~= 3.14 while e ~=2.718281828459045.

Is there some definition of "~=" that I don't know about?

Approx.

blob8108 wrote:

mythbusteranimator wrote:

blob8108 wrote:

Is there some definition of "~=" that I don't know about?

Approx.

Yes, I know; but is there some definition of how approximate?

Otherwise you might as well say "pi ~= 3.14159265359 while e ~= 2.72"

Take a list of n numbers :1,2,3,4,5,6,7,8...N
Calculate the factorial n! of each number
Calculate the inverse of each new number : 1/n!
Sum these numbers Sigma 1/n! add 1 -> 2.7182787698...
A good example for MAP functions.

With N=32 you get 15 correct decimals
Easy to remember 2,7 1828 1828 45 90 45

Last edited by xly (2013-04-11 13:07:23)

Hardmath123 wrote:

blob8108 wrote:

mythbusteranimator wrote:

Approx.

Yes, I know; but is there some definition of how approximate?

Otherwise you might as well say "pi ~= 3.14159265359 while e ~= 2.72"

That's why that's only reason number 9…

Aren't those really just joke examples? 

blob8108 wrote:

xly wrote:

Take a list of n numbers :1,2,3,4,5,6,7,8...
Calculate the factorial n! of each number
Calculate the inverse of each new number : 1/n!
Sum these numbers Sigma 1/n! add 1 -> 2.7182787698...
A good example for MAP functions.

Ooh, that was fun!

Code:

#lang racket
(define (inverse n) (/ 1 n))
(define (fact n)
  (if (<= n 1) 1
      (* n (fact (- n 1)))))
(define (sum x)
  (if (eq? x '()) 0
      (+ (car x) (sum (cdr x)))))
(exact->inexact (sum (map inverse (map fact (range 100)))))

I do not get Lisp. xD

Ah, yes, another thing on my list of 101 things to do this summer:

Chess AI
SICP
The Hobbit
Do Androids Dream of Electric Sheep (long story about that)
Re-watch all Star Wars
Re-read Hitchhiker's Guide
Do complex numbers and trig with AoPS (intermediate algebra too, if I have time)
Write a sci-fi book
Download/use blender
Take over the world (again, if I have time)

Last edited by Hardmath123 (2013-04-11 12:49:13)

Hardmath123 wrote:

Do Androids Dream of Electric Sheep

What's the long story? Also, why are you rewatching/rereading things? I thought the world's already producing content faster than one can consume it, without doing things twice...

Take over the world (again, if I have time)

bharvey wrote:

Hardmath123 wrote:

314 pages! Celebrate! It's going to be a while until 3,141 pages, right?

Everyone makes such a fuss over pi, and nobody ever notices the neglected younger sibling e, which is (imho) much more important mathematically.  But someday it'll be e whose foot fits in the glass slipper and who gets to marry the prince.

When you play e on the piano, it sounds way cooler than pi.

You can't have an e day, though.

Last edited by technoboy10 (2013-04-11 13:55:30)

Hardmath123 wrote:

Because the world isn't producing enough good content.

Right, so why Star Wars and Hitchhiker's Guide?  At least reread The Cider House Rules[/i] or [i]The Left Hand of Darkness or Speaker for the Dead.

Or SICP or Gödel, Escher, Bach.

But I bet there are good things you haven't read yet.  Like all of Peter Dickinson, for example.