« first day (207 days earlier)      last day (350 days later) » 

01:52
0
Q: Relation between angular momentum quantum numbers

John DoeWe have the angular momentum quantum numbers $(j,l,s)$ representing total angular momentum, orbital angular momentum and spin respectively. I am solving a problem where we try to show that if you have two spin-1 particles then $l+s$ is even. I didn't understand how to relate these numbers toget...

1 message moved from SecretLabs (SE Branch)
02:43
Infinite time turing machine encoding for fun:
Let blank tape be:
0000000000000000000000000000000000000000000000000...
In shorthand: {}
Any naturals in the brace denote an entry that is 1. Everything else is zero
Succession: {$\forall n, n+1$}
{0}=0
{1}=1
{2}=2
{3}=3
{4}=4
...
{n}=n
Encoding supremum:
Let $a,b,c,..$ be strings for $\alpha_1,\alpha_2,\alpha_3$. Then map all values of a to the odd integers, then map all values of b to every 2nd consecutive unlabelled integer, and so on
Constructing $\omega$
{}
{1}
{1,4}
{1,4,7}
{1,4,7,10}
...
{3n+1} = $\omega$
Constructing $\omega+n$
{3m+n}
Constructing $\omega 2$
{}
user84215
03:44
I am not a crank troll.
2,5,8,11,14
0th=blank
1st num=1,4,7,10,13,16,19,...
1st slots =1,3,5,7,9,11,13,...
1st encoded = 1,7,13,19,...
2nd slots = 2n entry of complement(1st slot) = 2nd(0,2,3,4,5,6,8,9,10,11,12)
=2,4,6,9,11,...
2nd num = 1st num+1 = 2,5,8,11,14,17,20,...
2nd encoded = common(2nd slots,2nd num) = 2,11,...

3m+1+k=2n+1=>3m+k=2n
k=0: 3m=2n=LCM(2,3)=6. a0=6p+1
k=1: 3m+1=2n=>m odd=>3(2p+1)+2=6p+5
To systemise:
START=blank
Naturals = {n}
omega:
0th=blank
1st num = {0}, 2nd num = {1}, 3rd num = {2},... n+1th num = {n}
1st slot = 2nd(blank) = {1,3,5,7,9,...} = {2m+1}
1st encoded = 1st num(1st slot) = 0->place 1 = {1}
2nd slots = 2nd(blank-1st encoded)=2nd({2,3,4,5,6,....})={2,4,6,8,...}
ERROR
RESTART
START=blank = $\Bbb{N}$
Naturals = {n}
1st slot = 2nd(blank) = {1,3,5,7,9,...} = {2m+1}
1st encoded = 1st slot(1st num) = {2m+1,m=0} = {1}
2nd slot = 2nd (blank - 1st encoded) = 2nd({0,2,3,4,5,6,7,...}) = {2,4,6,8,...} = {2n}
2nd encoded = 2nd slot(2nd num) = {2n,n=1} = {4}
3rd slot = 2nd({0,2,3,5,6,7,...}) = {2,5,7,...}
3rd encoded = {2,5,7,...,n=2} = {7}
nth encoded = {3n+1}
$\omega$ = merge(nth encoded, n in naturals) = {1,4,7,10,13,16,...} = {3n+1}
$\omega + m$ = {3n+m}
1st slot = {2n+1}
1st num = {3n+1}
1st encoded = {2(k-1)+1,3n+1=k} = {2(3n)+1} = {6n+1}
04:35
2nd slot = 2nd({not 6n+1}) = 2nd({n, n-1 if place = 6k+1}) =2nd (merge ({0},{n+1,n=1-5},{n+2,n=6-13},...) = 2nd({stepfn (n+k,jump = 1st num)} = ?closed form?
Experiment encoding 1:
Naturals = {n}
succession = {n+1}
$\omega$ = {0,n+2}
$\omega + m$ = {m,n+2+m}
$\omega 2$ = {0,1,n+2}
$\omega 2 + m$ = {m,m+1,n+2+m}
$\omega 3$ = {0,n+3}
=FAIL
Naturals = {n}
Succession = {n+1}
$\omega$ = {0,n+2}
$\omega + m$ = {m,n+2+m}
$\omega 2$ = {0,n+3}
$\omega m$ = {0,n+m}
$\omega^2$ = {0,1,n+3}
$\omega^2 m$ = {0,1,n+3+m}
$\omega^2 + m$ = {m,1+m,n+3+m}
FAIL
Naturals = {n}
Succession = {n+1}
$\omega$ = {0,n+2}
$\omega + m $ = {m,n+2+m}
$\omega 2$ = {0,n+3}
$\omega 2 + m$ = {m,n+3+m}
$\omega 3$ = {0,n+4}
$\omega m$ = {0,n+m}
$\omega^2$ = {0,1,n+3}
$\omega^2 + m$ = {m,1+m,n+3+m}
$\omega^2 + \omega$ = {0,1,n+4}
$\omega^2 2$ = {0,2,3,4,n+5}
cannot read...
00000000000000000000000000000000
10000000000000000000000000000000
01000000000000000000000000000000
00100000000000000000000000000000
...
10100000000000000000000000000000
01010000000000000000000000000000
00101000000000000000000000000000
00010100000000000000000000000000
...
01001000000000000000000000000000
01000100000000000000000000000000
01000010000000000000000000000000
01000001000000000000000000000000
...
(space)
01101000000000000000000000000000
01010100000000000000000000000000
01001010000000000000000000000000
01000101000000000000000000000000
...
01110100000000000000000000000000
01011010000000000000000000000000
...
01001101000000000000000000000000
01000110100000000000000000000000
01000011010000000000000000000000
...
01110100000000000000000000000000
01111010000000000000000000000000
01111101000000000000000000000000
01111110100000000000000000000000
...
10100000000000000000000000000000 = $\epsilon_0$
10101000000000000000000000000000
10101010000000000000000000000000
...
nope: 10101000000000000000000000000000 = $\epsilon_0$
10010101000000000000000000000000
10010010101000000000000000000000
10010010010101000000000000000000
...
10001001010100000000000000000000
10001000100101010000000000000000
10001000100010010101000000000000
...
10000100101010000000000000000000 = $\epsilon_0^{\omega}$
...
00001100101010000000000000000000 = $\epsilon_0^{\epsilon_0}$
00011100101010000000000000000000
00111100101010000000000000000000
...
11000100101010000000000000000000 = $\epsilon_1$
11011000100101010000000000000000
11011011000100101010000000000000
...
10000100010010100000000000000000 = $\epsilon_{\omega}$
ERROR: STACK OVERFLOW
 
9 hours later…
14:48
⎕←{⍺ ⍵}⌺3 3⊢3 4⍴⍳12
@Adám
┌─────┬────────┐
│1 1  │0 0 0   │
│     │0 1 2   │
│     │0 5 6   │
├─────┼────────┤
│1 0  │0 0 0   │
│     │1 2 3   │
│     │5 6 7   │
├─────┼────────┤
│1 0  │0 0 0   │
│     │2 3 4   │
│     │6 7 8   │
├─────┼────────┤
│1 ¯1 │0 0 0   │
│     │3 4 0   │
│     │7 8 0   │
└─────┴────────┘
┌─────┬────────┐
│0 1  │0 1  2  │
│     │0 5  6  │
│     │0 9 10  │
├─────┼────────┤
│0 0  │1  2  3 │
│     │5  6  7 │
│     │9 10 11 │
├─────┼────────┤
│0 0  │ 2  3  4│
│     │ 6  7  8│
│     │10 11 12│
├─────┼────────┤
2 messages moved from APL
 
1 hour later…
16:00
16:33
#TIO alias message #help Dyalog APL Language Elements
@Adám Added alias for #help
why you didn't ping me :(
#TIO alias message #ref Reference Card
@EriktheOutgolfer you do not have permission to edit settings for this room!
16:35
@Adám please re-post my message above ^^ :)
that is, if you'd like
#TIO alias message #help %handle% Dyalog APL Language Elements
@Adám Added alias for #help
#TIO alias message #ref %handle% Dyalog APL Reference Card
@Adám Added alias for #ref
#help
#ref
16:37
@EriktheOutgolfer Dyalog APL Reference Card
phew
#TIO alias view
@EriktheOutgolfer you do not have permission to edit settings for this room!
17:25
#TIO alias message #docs %handle% Dyalog APL Documentation
@Adám Added alias for #docs
17:43
#docs
17:55
#TIO alias message #about %handle% You can evaluate an APL expression by typing it into chat prefixed by ⍞←. Use ⎕← instead for boxing display and multi-line results. Do not use markdown. Commands: #lb for language bar, #help for table of language elements, #docs for full documentation, #ref for PDF reference card.
@Adám Added alias for #about
#tio alias message #lb %handle% ← +-×÷*⍟⌹○!? |⌈⌊⊥⊤⊣⊢ =≠≤<>≥≡≢ ∨∧⍲⍱ ↑↓⊂⊃⊆⌷⍋⍒ ⍳⍸∊⍷∪∩~ /\⌿⍀ ,⍪⍴⌽⊖⍉ ¨⍨⍣.∘⍤@ ⍞⎕⍠⌸⌺⌶⍎⍕ ⋄⍝→⍵⍺∇& ¯⍬
@Adám Added alias for #lb
#about
@Adám You can evaluate an APL expression by typing it into chat prefixed by ⍞←. Use ⎕← instead for boxing display and multi-line results. Do not use markdown. Commands: #lb for language bar, #help for table of language elements, #docs for full documentation, #ref for PDF reference card.
17:58
#TIO alias message #about %handle% You can evaluate an APL expression by typing it into chat prefixed by ⍞←. Use ⎕← instead for boxed display and multi-line results. Do not use markdown. Commands: #lb for language bar, #help for table of language elements, #docs for full documentation, #ref for PDF reference card.
@Adám Added alias for #about
36 messages moved from APL
 
2 hours later…
20:17
⍞←{⍵⍴⍳}10
@Adám
2 messages moved from APL
I think I hacked the site. I just was typing in random urls.
It works.
Wait my reps dropped.
OK I don't care but I this seems cool.
2,000 reps was kind of boring anyway.
@kenorb But I clicked recal.
I am more worried about my proposal than my reps now.
I think I know why my reps dropped:
Prepare meta post.
Wait I am confuse.
I went here:
clicked recal and boom!!!
kenorb It's a good thing I did this before you because: you would of lost your reps man I saved you.
I wonder what else I can find.
Ahhh I get it now since some of my post got deleted my reps was suppose to drop so I did it manually.
I am feeling like a mod right now. :)
I am going and take a bath be right back.
OK.
Bye.
I'm back!
Wait: I just lost over 200 reps and I am still calm. @kenorb I am controlling my inner emotions!!! :)
But still I thought only mods can recalc.
20:57
Lots of reads, I don't know where to start.
@kenorb Take it from the top man.
BTW:
18 mins ago, by Henry WH Hack v2.1
Wait: I just lost over 200 reps and I am still calm. @kenorb I am controlling my inner emotions!!! :)
Usually I would of been panicking but I'm not this time.
21:10
@kenorb Well are you reading?
We have been waiting for the next beta since: Augur.
8 messages moved from Paranormal
22:12
What is the real topic ?
@DiegoHenriquez Of?
 
1 hour later…
23:21
!!/reload-all
rebooting system..........................................................................‌​..............................................................
reloading all modules.........................................................................‌​..............................................................
updating brain
completed
@kenorb HELP I LOST 220 REPS!!! WHHHHYYYY???
Somehow I can't panic about it.
I think it's because my brain hasn't come to the point where it notice the lost there for the panic mode is not actives.
in , 19 secs ago, by Henry WH Hack v2.1
I am being more honest by clicking that button you know. ;)

« first day (207 days earlier)      last day (350 days later) »