## Count by meaningful numbers

For all your silly time-killing forum games.

Moderators: jestingrabbit, Moderators General, Prelates

12obin
Posts: 91
Joined: Tue Mar 26, 2013 1:15 am UTC

### Count by meaningful numbers

I'll give two examples because it's easier to demonstrate than just explain.
Sweet 16
365 days in a year

Count upward by numbers with which you associate some meaning. It can be a personal meaning for you, too. And it can take a sentence or so to explain if needed.
You can skip numbers, but try not to skip too far at once, and give people some time to respond before you add a post where you're skipping. You can also post non-integers if you have one.
No back-tracking. You can only post a number higher than the previous post.
For the two examples I gave above, you can use my examples because I kind of ruined them.
Robin, she.

Vytron
Posts: 429
Joined: Mon Oct 19, 2009 10:11 am UTC
Location: The Outside. I use She/He/Her/His/Him as gender neutral pronouns :P

### Re: Count by meaningful numbers

-1/12

My favorite number because I find intriguing how there are people in the world that think it's the result of the set {1 + 2 + 3 + 4... (up to infinity)}

Handel Played it Better
Posts: 484
Joined: Wed Dec 19, 2012 7:18 am UTC
Location: Aotearoa

### Re: Count by meaningful numbers

Not part of the game now, and I see there are many meaningful numbers that can go before it.
Spoiler:
√2 - Equals about 1.414, a very interesting and useful number.

It is interesting because it is the diagonal of a square side one. It is irrational, meaning that if you graph y=x*√2, the only graph point the line passes through is 0,0. I remember this graph because it was illustrated by a square standing up diagonally at x=1, with its top corner giving the point for the graph line at y=√2.

It's used in ISO 216 paper sizes, meaning the aspect ratio stays the same when the paper is cut in half.
Last edited by bachaddict on Sun Oct 19, 2014 5:30 am UTC, edited 1 time in total.
slinches wrote:Also, the OTC isn't a disease. In fact, it's the cure. As we all know, Time heals all wounds.

Thanks for the molpish wig ggh!
he/him/his

12obin
Posts: 91
Joined: Tue Mar 26, 2013 1:15 am UTC

### Re: Count by meaningful numbers

Can you briefly explain what's interesting about it, or even just give a link? The spirit of the game/activity is sort of that everyone should understand why a number is on the list.
Robin, she.

Vytron
Posts: 429
Joined: Mon Oct 19, 2009 10:11 am UTC
Location: The Outside. I use She/He/Her/His/Him as gender neutral pronouns :P

### Re: Count by meaningful numbers

I agree with 12obin.

Reecer6
Posts: 101
Joined: Fri Nov 30, 2012 12:59 am UTC

### Re: Count by meaningful numbers

While we wait for an answer, let's make it non-canon.

One is important because it's the single only value in the English language that makes you not pluralize a noun.

Vytron
Posts: 429
Joined: Mon Oct 19, 2009 10:11 am UTC
Location: The Outside. I use She/He/Her/His/Him as gender neutral pronouns :P

### Re: Count by meaningful numbers

1.059463094359295264561825294946

Which is the twelfth root of two (that is, if you multiply it by itself 12 times you get 2.)

It's the proportion between the frequencies of adjacent semitones in the equal temperament scale.

It's important because without it we wouldn't be able to tune the difference in the musical notes of virtual instruments (for real instruments we can do it by ear - with this number we can pick any kind of sound, and make a virtual instrument out of it by just separating every note by a factor of 1.059463094359295264561825294946.)

12obin
Posts: 91
Joined: Tue Mar 26, 2013 1:15 am UTC

### Re: Count by meaningful numbers

Reecer6 wrote:While we wait for an answer, let's make it non-canon.

That's okay. They can just edit the existing post if they want.
Robin, she.

Vytron
Posts: 429
Joined: Mon Oct 19, 2009 10:11 am UTC
Location: The Outside. I use She/He/Her/His/Him as gender neutral pronouns :P

### Re: Count by meaningful numbers

I don't know if this is legal, but I don't see in the rules mentioning that it's illegal to count when someone else has posted after you if they didn't keep counting.

1.060660171779821286601266543157

Which is the Square Root of 2 multiplied by 3 and divided by 4.

Why is it interesting:

Imagine a cube that has all the sides being length 1. Now, imagine that there's another cube that passes through this cube and makes a hole through it. It turns out, that if the new cube is too big, the old cube is destroyed. So there's a cube with a size that is the biggest one that can pass through the old cube without destroying it. The biggest cube is called a Prince Rupert's Cube, and has all the sides being length 1.060660171779821286601266543157.

After the hole is made the cube of length one looks like this:

Posts: 1267
Joined: Thu Jun 16, 2011 6:36 pm UTC

### Re: Count by meaningful numbers

1.1

It's the first palindrome.

Or, if you are a pedant, it's the first palindrome that isn't stupid (like 0.0 or 1) or messed up by the decimal point or negative sign (like .505 or -1.1) or what have you.

Sean Quixote
Posts: 229
Joined: Tue Sep 14, 2010 1:20 am UTC
Location: Ubeki-beki-beki-beki-stan-stan

### Re: Count by meaningful numbers

√2 ≈ 1.41421356237309504880168872420969807856967187537694807317667973799 ...

Ratio of the length of the hypotenuse to the legs of a right isosceles triangle. Probably the oldest-known irrational number.

Vytron
Posts: 429
Joined: Mon Oct 19, 2009 10:11 am UTC
Location: The Outside. I use She/He/Her/His/Him as gender neutral pronouns :P

### Re: Count by meaningful numbers

I guess I was just too slow to come with a convincing explanation for this, so ignore this message.

Spoiler:
1.080604612

This number has no actual significance or importance in the number line, but by the end of this post I'll promise you'll find it interesting too.

So let's talk first, about complex numbers.

But first we need to talk about imaginary numbers.

What happened is that mathematicians didn't have enough fun with real numbers, because, there's an infinite uncountable number of them from 0 to 1, and from any integer to another. But once you've proved that you can't list them all, you're done.

Now that you know and can give a name to every single point in the number line, where do you go? Well, what about making up numbers that currently don't exist? The first such number is this one:

i

You won't find this number in this thread, or in any other counting thread.

This is because this number is not on the number line, no operation between numbers on the number line produces this number.

Is that so? Well, not really.

It turns out that if you ask for the square root of -1, you get this guy.

i*i=-1

0 connects the number line with the line of imaginary numbers, which runs vertically to it.

So i is actually 1i, and there's also 0.5i, the square root of -0.5, and googol plexi, the square root of negative googol plex, and so on.

This imaginary number line is vertical, and if you go down you move towards negative imaginary infinity, and if you go up you move towards imaginary infinity (the square root of negative infinity.)

That's simple enough, imaginary number behave just like real numbers. But now you can't make operations between real and imaginary numbers.

Is that so? Well, not really.

What happens is, just like getting the square root of -1 doesn't get you back to the number line, operations between the real and imaginary number lines don't land you back on either line.

So, what happens if you sum i and 1? Well, you don't get 1i, that'd be i+0. What you do is you take a look at the plane, where both lines intersect, and you draw a vertical line coming from the 1, and draw a horizontal line coming from i. When they intersect you get your result, and it looks like this:

i + 1 = 1 + i

And you may say "well, we got nowhere!"

Except we did.

1+i is a complex number! The + there doesn't mean "sum 1 + i", it's actually part of the name of the 1+i value in the so called complex plane. The complex plane contains all the possible results of operations between the number line and the imaginary number line.

But that's not enough to make 1.080604612 interesting, for that, we also need another number, which is:

e

This is a real number named after some random guy named Euler.

It's the limit of (1+(1/n))^n, as n approaches infinity, and it's about 2.71828.

The interesting thing about 1.080604612 is that there's two ways to arrive at this number. The first one is to just do:

Take the cosine of 1 and multiply it by 2:

2cos(1)=1.080604612

The second one is to take e, and square it by itself i times to get a.

And take e, and square it by itself negative i times to get b.

And then sum a and b.

e^i = 0.540302306 + 0.841470985 i

e^-1 = 0.540302306 - 0.841470985 i

The 0.841470985s cancel out each other and you end with:

a=0.540302306
b=0.540302306

0.540302306*2=

1.080604612

Wasn't that interesting?

Handel Played it Better
Posts: 484
Joined: Wed Dec 19, 2012 7:18 am UTC
Location: Aotearoa

### Re: Count by meaningful numbers

1.618...
Spoiler:
1.61803398874989484820458683436563811772030917980576286213544862270526046281890
244970720720418939113748475408807538689175212663386222353693179318006076672635
443338908659593958290563832266131992829026788067520876689250171169620703222104
321626954862629631361443814975870122034080588795445474924618569536486444924104
432077134494704956584678850987433944221254487706647809158846074998871240076521
705751797883416625624940758906970400028121042762177111777805315317141011704666
599146697987317613560067087480710131795236894275219484353056783002287856997829
778347845878228911097625003026961561700250464338243776486102838312683303724292
675263116533924731671112115881863851331620384005222165791286675294654906811317
159934323597349498509040947621322298101726107059611645629909816290555208524790
352406020172799747175342777592778625619432082750513121815628551222480939471234
145170223735805772786160086883829523045926478780178899219902707769038953219681
986151437803149974110692608867429622675756052317277752035361393621076738937645
560606059216589466759551900400555908950229530942312482355212212415444006470340
565734797663972394949946584578873039623090375033993856210242369025138680414577
995698122445747178034173126453220416397232134044449487302315417676893752103068
737880344170093954409627955898678723209512426893557309704509595684401755519881
921802064052905518934947592600734852282101088194644544222318891319294689622002
301443770269923007803085261180754519288770502109684249362713592518760777884665
836150238913493333122310533923213624319263728910670503399282265263556209029798
642472759772565508615487543574826471814145127000602389016207773224499435308899
909501680328112194320481964387675863314798571911397815397807476150772211750826
945863932045652098969855567814106968372884058746103378105444390943683583581381
131168993855576975484149144534150912954070050194775486163075422641729394680367
319805861833918328599130396072014455950449779212076124785645916160837059498786
006970189409886400764436170933417270919143365013715766011480381430626238051432
117348151005590134561011800790506381421527093085880928757034505078081454588199
063361298279814117453392731208092897279222132980642946878242748740174505540677
875708323731097591511776297844328474790817651809778726841611763250386121129143
683437670235037111633072586988325871033632223810980901211019899176841491751233
134015273384383723450093478604979294599158220125810459823092552872124137043614
910205471855496118087642657651106054588147560443178479858453973128630162544876
114852021706440411166076695059775783257039511087823082710647893902111569103927
683845386333321565829659773103436032322545743637204124406408882673758433953679
593123221343732099574988946995656473600729599983912881031974263125179714143201
231127955189477817269141589117799195648125580018455065632952859859100090862180
297756378925999164994642819302229355234667475932695165421402109136301819472270
789012208728736170734864999815625547281137347987165695274890081443840532748378
137824669174442296349147081570073525457070897726754693438226195468615331209533
579238014609273510210119190218360675097308957528957746814229543394385493155339
630380729169175846101460995055064803679304147236572039860073550760902317312501
613204843583648177048481810991602442523271672190189334596378608787528701739359
303013359011237102391712659047026349402830766876743638651327106280323174069317
334482343564531850581353108549733350759966778712449058363675413289086240632456
395357212524261170278028656043234942837301725574405837278267996031739364013287
627701243679831144643694767053127249241047167001382478312865650649343418039004
101780533950587724586655755229391582397084177298337282311525692609299594224000
056062667867435792397245408481765197343626526894488855272027477874733598353672
776140759171205132693448375299164998093602461784426757277679001919190703805220
461232482391326104327191684512306023627893545432461769975753689041763650254785
138246314658336383376023577899267298863216185839590363998183845827644912459809
370430555596137973432613483049494968681089535696348281781288625364608420339465
381944194571426668237183949183237090857485026656803989744066210536030640026081
711266599541993687316094572288810920778822772036366844815325617284117690979266
665522384688311371852991921631905201568631222820715599876468423552059285371757
807656050367731309751912239738872246825805715974457404842987807352215984266766
257807706201943040054255015831250301753409411719101929890384472503329880245014
367968441694795954530459103138116218704567997866366174605957000344597011352518
134600656553520347888117414994127482641521355677639403907103870881823380680335
003804680017480822059109684420264464021877053401003180288166441530913939481564
031928227854824145105031888251899700748622879421558957428202166570621880905780
880503246769912972872103870736974064356674589202586565739785608595665341070359
978320446336346485489497663885351045527298242290699848853696828046459745762651
434359050938321243743333870516657149005907105670248879858043718151261004403814
880407252440616429022478227152724112085065788838712493635106806365166743222327
767755797399270376231914704732395512060705503992088442603708790843334261838413
597078164829553714321961189503797714630007555975379570355227144931913217255644
012830918050450089921870512118606933573153895935079030073672702331416532042340
155374144268715405511647961143323024854404094069114561398730260395182816803448
252543267385759005604320245372719291248645813334416985299391357478698957986439
498023047116967157362283912018127312916589952759919220318372356827279385637331
265479985912463275030060592567454979435088119295056854932593553187291418011364
121874707526281068698301357605247194455932195535961045283031488391176930119658
583431442489489856558425083410942950277197583352244291257364938075417113739243
760143506829878493271299751228688196049835775158771780410697131966753477194792
263651901633977128473907933611119140899830560336106098717178305543540356089529
290818464143713929437813560482038947912574507707557510300242072662900180904229
342494259060666141332287226980690145994511995478016399151412612525728280664331
261657469388195106442167387180001100421848302580916543383749236411838885646851
431500637319042951481469424314608952547072037405566913069220990804819452975110
650464281054177552590951871318883591476599604131796020941530858553323877253802
327276329773721431279682167162344211832018028814127474431688472184593927814354
740999990722332030592629766112383279833169882539312620065037028844782866694044
730794710476125586583752986236250999823233597155072338383324408152577819336426
263043302658958170800451278873115935587747217256494700051636672577153920984095
032745112153687300912199629522765913163709396860727134269262315475330437993316
581107369643142171979434056391551210810813626268885697480680601169189417502722
987415869917914534994624441940121978586013736608286907223651477139126874209665
137875620591854328888341742920901563133283193575622089713765630978501563154982
456445865424792935722828750608481453351352181729587932991171003247622205219464
510536245051298843087134443950724426735146286179918323364598369637632722575691
597239543830520866474742381511079273494836952396479268993698324917999502789500
060459661313463363024949951480805329017902975182515875049007435187983511836032
722772601717404535571658855578297291061958193517105548257930709100576358699019
297217995168731175563144485648100220014254540554292734588371160209947945720823
780436871894480563689182580244499631878342027491015335791072733625328906933474
123802222011626277119308544850295419132004009998655666517756640953656197897818
380451030356510131589458902871861086905893947136801484570018366495647203294334
374298946427412551435905843484091954870152361403173913903616440198455051049121
169792001201999605069949664030350863692903941007019450532016234872763232732449
439630480890554251379723314751852070910250636859816795304818100739424531700238
804759834323450414258431406361272109602282423378228090279765960777108493915174
887316877713522390091171173509186006546200990249758527792542781659703834950580
106261553336910937846597710529750223173074121778344189411845965861029801877874
274456386696612772450384586052641510304089825777754474115332076407588167751497
553804711629667771005876646159549677692705496239398570925507027406997814084312
496536307186653371806058742242598165307052573834541577054292162998114917508611
311765773172095615656478695474489271320608063545779462414531066983742113798168
963823533304477883169339728728918103664083269856988254438516675862289930696434
684897514840879039647604203610206021717394470263487633654393195229077383616738
981178124248365578105034169451563626043003665743108476654877780128577923645418
522447236171374229255841593135612866371670328072171553392646325730673063910854
108868085742838588280602303341408550390973538726134511962926415995212789311354
431460152730902553827104325966226743903745563612286139078319433570590038148700
898661315398195857442330441970856696722293142730741384882788975588860799738704
470203166834856941990965480298249319817657926829855629723010682777235162740783
807431877827318211919695280051608791572128826337968231272562870001500182929757
729993579094919640763442861575713544427898383040454702710194580042582021202344
580630345033658147218549203679989972935353919681213319516537974539911149424445
183033858841290401817818821376006659284941367754317451605409387110368715211640
405821934471204482775960541694864539878326269548013915019038995931306703186616
706637196402569286713887146631189192685682691995276457997718278759460961617218
868109454651578869122410609814197268619255478789926315359472922825080542516906
814010781796021885330762305563816316401922454503257656739259976517530801427160
714308718862859836037465057134204670083432754230277047793311183666903232885306
873879907135900740304907459889513647687608678443238248218930617570319563803230
819719363567274196438726258706154330729637038127515170406005057594882723856345
156390526577104264594760405569509598408889037620799566388017861855915944111725
092313279771138032943765475090165169496509916073833937715833230245701948347400
070437618671998483401631826008462619656284649118225688857521346375490254180833
821383522245258726789379505375915603579454698509102256225455003017571049469833
483545323835260787092219304581782306012370753280678368541306584636788866433486
249368010198782799630670259543265137806007386392908564830874157618741897345848
450141889765293411013722158643559915527113623322003526677859159890231446163321
026519665907632061524383747619049531582968836265042094840105654589130629827717
249809641959472340465110419821347689354018038256954956286039244264159867485982
280060353862839166201252826607493306196584965199979419393226017235710733642537
083033011433624985753635970424446475998999950855041354977558585934576590926533
307252775416758431466936767806170350120038448748838233760344077515947781221883
070900087386627362091660799050226989270321899760379509890591085910392967345614
610700304581921273892599269610621167643642438350141020408632149917815297968152
237983224273753657008553469979655413859050326836160222788475547062698439108852
103020768604706804556846560491686498860616222952323907098092629302337956482179
981632645827888877674520846371971063478923106675469355047615197781699025881840
407927510901824482787052505976983753514306224450902202382439823125505841623207
188319300693606464682096595006549290109716186526367216107417136183776673327975
626854801245657682790317603946555394523143387567730349791578588591011663748455
675847952713918608782540104233329857442747118969610485126401975043599092076621
558998660736837623188358845081292950114665354828171448464056865246540907815471
619625784469575262569455165601519164029217988548909373280314651922247590030965
715490505361043776868772619159528449204647868973473708598413845131621192972012
634240773694545981865029659233534512568454974541129819735876670728601616056204
230636066130281496773445797737750557564665475256322648177116997857087122831543
104569123262503497681152452174497396136748822046480519688754341969511933120450
216051429384844754523821270143830957855813619678302310685080845876952059053294
683384904712099162556365034003439670828933698367423001575117385151269123066172
276414421607512917341874714315093241924914160969998672815823859257359823894849
274919646152272273338746312138436262116379467062032630225055489580573083750461
299231136299173069489407342588319483999274163950984439634057635284717562762192
786522539608720131080486406534396168875452534263098969517619019770963192258709
342165955974471750157538376741522280570650280683143356524917199733358403064153
550759115974264366482846628136802174505909705894602744292632222215459450758046
571206068639904308236939693208237490767561190171561305424813311715242568478463
363770015204417916501168232575236160495749706390822443444510351219048819830276
001766809850965245439007199098034993026860675523879685292194732393352370086650
221407464554037222343481675749373144640928379006539196774010355861936181566836
616864892395554961452826472894994160615803045867891461971728155451100056660542
499691974102798740593276434953714525167694620698597880946950174730228414275718
871940921209137994059430370504364838600434645227993302923901865922689874992113
256560557840142335426058951056203690720289393159204404768359276364799600596404
860761989159298194950878786027663459905404263770045900803279434720629825445256
356479542992488198646136171314485773469953475577155491384239289401754034139973
846169481293479242234609743019627523013828607224496380953838401526567819764507
588547855155492345234781646033062938842009950803260140918302574385770671025227
243666905988908545015570754230316665924723528924702588624794887546252765727285
151112878270673454310244515233456542284311039679528296250193698939983473961763
988095735415260145372964681473821843600521099472119416591494716705203792255209
633645848468041447780302164728623999264048363508773747824501638200895240322534
379925790129265640155537754091751704419627285039126695956664877242967660367303
453668734049079141886945214715827908157233969124039985869390855173079801955546
128513408912061084012213617070570430060569246855916468834773320856891412679428
448041384682813256929148160109786272696866867373917118931462269134894580427789
899608144709524762905019260311649206867743318661546966896601822663578788750608
856243562678932797354633904182108774638039216244772025672699596391824687788455
497179038515839204748319903127622437066235092518775434140107112335865907748122
063763459019884225472727655290504399502524440391136582670813300580588209460310
208261341369127572936992893029961730892843670315238589753987388936807441526373
794240506448764171768613552343269865728970463069180174277972173889859443284852
057257588337563820150546720651674252681894851673328046307647813293132602893229
366045210213189812987661526244487486693890406178469916665417485084597970146178
215845014919572109825089234517474512254327386819725864944588083771398685065984
085457731654169174067052111949166286337732263753475666370022120327524389997736
006074042702972203634778048298834855189525079474605519940340110771169725644261
005092059843362535847069597185762616776630211747878341975644501838041029203240
408826617344339090263522350506828582854432839618480925376130820115626869907999
117084755586982150310073563240421988569584200682439926953784403202222374628147
659230605547476936830576549677690471159625502474507809624837449908025613750915
622359081010534493941774294277091445166668700415228544638076615351141556487854
936011387473103828773313388391709646174829063156788065182761765798535021665998
607464012674884121130098549938337106031962506702797524310119377335548537011694
674858888363080333287739571656275340367272180705622562326374148833499289970258
977299224036941750743427314194157432466794578586039894075097356363688815672159
676354380665593938934382075984061216064317664421902677773799145579945031468708
716266226524133590569928494006372744908821635242948022566330458553636337251762
049074624062938962390622030424872688432377631733574205753997574373508409657792
180880089420590662572782307692788656445563758012667280952527379828030076636976
928164844651277473822397061738567507146692748220374881122563994075227626464994
658463674019559973702838393119884822335539964978333165008467491254522956512409
390963784095416901234675375280139080830863022653352387069273071984654649454979
101134287154636695543437462154391886526085366974366530588562164411648068912837
357794341530609478457270987037976921346205969538843826760827659181773627669918
727803754219954172428335791064520613736884708545165822193158645377018313401818
827251099922917614711860529176551422881123566217241692680620648845317615164272
953585798375412375876100415475805595730122459276711895277333823356043374201321
392804317053379463646428351993014576706491847707768959885421647973371769625943
938648074893633201098893643528324494132569317438323509258286421276209473432879
984387198291625035886368857440896091619767553023636147840186271827708891360398
933077293060296717760258418030133475474406093218222662077059842476082637941388
598601935208959821941885723823714271930349354518240112671046073097412681279072
726438685681544729144826761389945092064098792647692574698812334642995267308237
405720406143748700867048612599590178424976845844736824827947824753176338174814
799571031203396345226743415123722322454626546328353564246627786460839872179127
843089641636422237152822199860850600158245169478318926060165827491142774933502
865503727691068107557826463340399219222602208590967841860013859653877265826244
657597694069240541804444738471607901449743018055889337623761296918229234768453
759556468421122698731637506249971182291485689604472527760093934343558339195165
132985623645893149101860849683480338090932736261062054795970421298669883573560
404347128399801249802209466851093490407878450102117684276345079137687609746900
665759683043519266676563960922648845670212850744821184836102907689196493402300
641753173483914758916672023069245347107627719792524997328576890388680141780313
799483651089527220946591304506656658258539174690486872649902546765966599164547
365134259755577397348506528439977384490513905829430130008366961455669748537793
407881277215791487210719258869089277878732982982214574233273265987982756950898
845306240223036486347722967056524127035887830281940074980575439016285786745531
327197652607107643153112391526077219362144346096089758726934223674331613718574
577608117751518069662104795585140130069701845007026290479492570837120175279378
554957627391245587148332010170361840521636818017341425089806160634676330850504
184585816629334093479199103685913053789482158651701181210113330006695775232786
685518078256752836149494920745837336845813691407977595925267273966423478746614
399819648081036705066005238269165055144634711116867428177319502560642951637959
659475644987891461446925936629309364804816174059808214254340525211371332408113
913579971622858101419103410460569290782498956214560041045692221416830893236662
517618696271719453854998551484275173369241202680159928083201458300754484742331
264387808478085056104304909999364345905195187494843696772757473359670883349609
157447435750398602016397666114276536952670441155200193914842934601015129531174
458876483070371677396154265591399083037577663021309908712719887069032930470124
105861506399852998141757804303480803588203202011047607004755710169423412034108
915643947825303164593730437558194686752534953230130276782353560116641311177996
099793662043449569683547930754311327558643189731515171064432189249793277801264
964764475467078165807406131259375271847408816115479818307816751047809291413954
564631160581269051753953556915775580410671981231638405277556052272223764711883
233223099585068971018717504781906533494858423259762256575841898529144717833517
322602985786292943465056366932162627673816245957417932698892327220666636081992
490988831468529940991386734446049670842442978243630232938910355965601739942201
988690257245471401633009612146187208365108688185334060622017099515827070442337
042180176696349133695996064322005328873494893135966030424380804565944743335678
31672703729636367594216999379522
The Golden Ratio.

a and b are in the golden ratio if a+b:a=a:b

This ratio is found in nature and pretty much everywhere else.
slinches wrote:Also, the OTC isn't a disease. In fact, it's the cure. As we all know, Time heals all wounds.

Thanks for the molpish wig ggh!
he/him/his

Vytron
Posts: 429
Joined: Mon Oct 19, 2009 10:11 am UTC
Location: The Outside. I use She/He/Her/His/Him as gender neutral pronouns :P

### Re: Count by meaningful numbers

1.6325269

Sorry to crop it at 7 significant digits.

Anyway, this is the square root of 2 multiplied by itself square root of 2 times.

It's important because it's used to prove that an irrational number to an irrational power may be rational.

12obin
Posts: 91
Joined: Tue Mar 26, 2013 1:15 am UTC

### Re: Count by meaningful numbers

I should have predicted that it would go all mathy like this.
I'm kind of into it but I totally didn't anticipate it.
Robin, she.

Sean Quixote
Posts: 229
Joined: Tue Sep 14, 2010 1:20 am UTC
Location: Ubeki-beki-beki-beki-stan-stan

### Re: Count by meaningful numbers

2

Smallest and only even prime number. Largest number that's the factorial of itself (and for that matter, the number of numbers that are the factorial of themselves ). The essence of duality. The number of thumbs that "this guy" usually possesses.

Handel Played it Better
Posts: 484
Joined: Wed Dec 19, 2012 7:18 am UTC
Location: Aotearoa

### Re: Count by meaningful numbers

2.71828...

Euler's Constant. Much, much weirder than π. Used in compound interest and other, nerdier things.
12obin wrote:I should have predicted that it would go all mathy like this.
I'm kind of into it but I totally didn't anticipate it.

We've got to get all the little interesting numbers out of the way before we can get on to personally significant ones!
EDIT: I hope I'm not spoiling Vytron's game of counting up in the smallest possible steps.
slinches wrote:Also, the OTC isn't a disease. In fact, it's the cure. As we all know, Time heals all wounds.

Thanks for the molpish wig ggh!
he/him/his

12obin
Posts: 91
Joined: Tue Mar 26, 2013 1:15 am UTC

### Re: Count by meaningful numbers

Oh dammit I missed 2 because I was letting you get all your deep math things out. I'm getting 3 before someone gets in ahead of me, and then I think I know what will come next.

3 is a number that has a School House Rock song about it. It is also significant for the structural integrity of triangles.
Robin, she.

Vytron
Posts: 429
Joined: Mon Oct 19, 2009 10:11 am UTC
Location: The Outside. I use She/He/Her/His/Him as gender neutral pronouns :P

### Re: Count by meaningful numbers

12obin wrote:I think I know what will come next.

You do?

3.031088913245535263673031097632

This is the square root of 3, divided by 4 (multiplied by 7.)

It's the Area of an equilateral triangle with side length 7.

bachaddict wrote:EDIT: I hope I'm not spoiling Vytron's game of counting up in the smallest possible steps.

Don't worry, I'll manage

I now wonder if the next guy will skip to 4 XD

Sean Quixote
Posts: 229
Joined: Tue Sep 14, 2010 1:20 am UTC
Location: Ubeki-beki-beki-beki-stan-stan

### Re: Count by meaningful numbers

22/7

Approximation of π, sufficient for "most" practical calculations. Okay, I have a feeling I probably shouldn't say most, lest I betray my ignorance. Slightly larger, though, so, yes I am a troll.

Vytron
Posts: 429
Joined: Mon Oct 19, 2009 10:11 am UTC
Location: The Outside. I use She/He/Her/His/Him as gender neutral pronouns :P

### Re: Count by meaningful numbers

I still don't get why people use that symbol for pi when there's a much better one available (𝜋.) Seriously, every time people have to use a symbol they use π. I'd certainly would never use π if I had to draw pi on a blackboard.

3.162277660168379331998893544433

This is the square root of 10.

It's the result of the square root of 2 multiplied by the square root of 5 (the area of a rectangle with those sides.)

The length of the diagonal of a rectangle of sides 1 and 3.

The length of the diagonal of a rectangle of sides 2 and the square root of 6.

The length of the diagonal of a rectangle of sides square root of 3 and the square root of 7.

And the length of the diagonal of a square with sides square root of 5.

It's cool because this is like the pi of 4 sided shapes!

Spoiler:
Or, if you divide the area of a 4 sided shape by the square root of 10 you get the pi of 4 sided shapes, leave me alone!

Sean Quixote
Posts: 229
Joined: Tue Sep 14, 2010 1:20 am UTC
Location: Ubeki-beki-beki-beki-stan-stan

### Re: Count by meaningful numbers

Well, at least one reason not to use it here is that apparently this forum isn't compatible with whichever Unicode thingy (there I go displaying my ignorance again) that it's a part of... *shrug*

Anyway, this isn't a counting post I just absolutely had to say that for whatever reason.

Vytron
Posts: 429
Joined: Mon Oct 19, 2009 10:11 am UTC
Location: The Outside. I use She/He/Her/His/Him as gender neutral pronouns :P

### Re: Count by meaningful numbers

Sean Quixote wrote: this forum isn't compatible with whichever Unicode thingy (there I go displaying my ignorance again) that it's a part of...

Wait, what? Do you see a box with numbers or a question mark instead of pi there?

Anyway, continuing:

γ

AKA 3.275822918721811159787681882 (Lévy's constant)

Which is e (Euler's Constant as mentioned by bachaddict) multiplied by itself 1.1865691104 times.

1.1865691104 is 𝜋 squared and divided by 12*0.693147181

0.693147181 is ln 2.

ln 2 means "the natural logarithm of 2".

What is a natural logarithm? Well, to understand them you have to understand numeric bases.

In this thread we all use base 10, base 10 means, that we use 10 symbols to represent numbers, those symbols are:

0 1 2 3 4 5 6 7 8 9

And once you run out of symbols, you use again your first and second symbol to represent the next value:

10

And so on.

There's also base 1:

1 11 111 1111 11111...

Binary, the language of computers:

0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111...

Hexadecimal, used by computers to group binary numbers:

0 1 2 3 4 5 6 7 8 9 A B C D F

The dozenal system, superior to the decimal system that we use, because it has very nice looking values for which decimal has the crappy 0.333repeating/0.666repeating stuff:

0 1 2 3 4 5 6 7 8 9 𝓧 Ɛ

Anyway, a natural logarithm is that number written in base e (Euler's Constant as mentioned by bachaddict), or a number base with e symbols.

γ is important because that's to where all (except finitely many) real numbers arrive if you take the limit of (xn)^1/n as n approaches infinity.

Posts: 1267
Joined: Thu Jun 16, 2011 6:36 pm UTC

### Re: Count by meaningful numbers

5.

I have 5 fingers on each hand and 5 toes on each feet.

brenok
Needs Directions
Posts: 507
Joined: Mon Oct 17, 2011 5:35 pm UTC
Location: Brazil

### Re: Count by meaningful numbers

7

The colors of the rainbow, the capital sins, the ancient wonders etc.

Vytron
Posts: 429
Joined: Mon Oct 19, 2009 10:11 am UTC
Location: The Outside. I use She/He/Her/His/Him as gender neutral pronouns :P

### Re: Count by meaningful numbers

7.03467422498391652049818601859902130

Which is the result of the Lambert W function for 1/2, multiplied by 20.

Which is the inverse of the function:

f(n)=n*(e^n)

(where e is Euler's Constant as mentioned by bachaddict, and n is any number)

This is actually a very useful function in science:

• It's used in Planck's law, which describes the electromagnetic radiation emitted by a black body in thermal equilibrium at a definite temperature.
• It's used in Bose–Einstein statistics and Fermi–Dirac statistics, which in quantum statistics, is one of two possible ways in which a collection of non-interacting indistinguishable particles may occupy a set of available discrete energy states, at thermodynamic equilibrium, and describes a distribution of particles in certain systems comprising many identical particles that obey the Pauli exclusion principle, respectively.
• Occurs in the results of delay differential equations, in which the derivative of the unknown function at a certain time is given in terms of the values of the function at previous times.
• In the Michaelis–Menten kinetics of enzyme kinetics of biochemistry, describes a closed-form solution for the time course kinetics analysis.

I have no idea what any of that means, but I'm pretty sure that's very important!

This number in embedded in nature!

phillip1882
Posts: 141
Joined: Fri Jun 14, 2013 9:11 pm UTC
Location: geogia
Contact:

### Re: Count by meaningful numbers

8.5397342226735670654635508695466
pi*e. enough said.
good luck have fun

Vytron
Posts: 429
Joined: Mon Oct 19, 2009 10:11 am UTC
Location: The Outside. I use She/He/Her/His/Him as gender neutral pronouns :P

### Re: Count by meaningful numbers

^Um, well, so I'll assume a meaning number multiplied by another meaningful number is also meaningful.

8.66025403784438646763723170753

The square root of 3 divided by 2.

Altitude of an equilateral triangle with side length 10.

It's meaningful because, to know the altitude of any equilateral triangle, all you need to do is multiply the length of one of the sides by this number, and then divide by 10.

Handel Played it Better
Posts: 484
Joined: Wed Dec 19, 2012 7:18 am UTC
Location: Aotearoa

### Re: Count by meaningful numbers

9.
It's meaningful because nine of an object can be arranged into a 3x3 grid with the same aspect ratio as the original object. Works best with squares.
It's the highest digit in base 10. When working with computers you get used to numbering things from 0-9 rather than 1-10.
Personally meaningful because it features twice in my birth year
slinches wrote:Also, the OTC isn't a disease. In fact, it's the cure. As we all know, Time heals all wounds.

Thanks for the molpish wig ggh!
he/him/his

Vytron
Posts: 429
Joined: Mon Oct 19, 2009 10:11 am UTC
Location: The Outside. I use She/He/Her/His/Him as gender neutral pronouns :P

### Re: Count by meaningful numbers

9.06472028365438761924

This is 𝜋 divided by the natural logarithm of 2 (ln(2)) multiplied by 2.

In the Van der Pauw method, it's used to calculating sheet resistance (by using nested intervals that converge slowly but steadily to Rs = R*9.06472028365438761924/2) and 9.06472028365438761924/2 it's known as Van der Pauw's constant.

It's important because it allows us to measure of resistance of thin films that are nominally uniform in thickness. It is commonly used to characterize materials made by semiconductor doping, metal deposition, resistive paste printing, and glass coating.

12obin
Posts: 91
Joined: Tue Mar 26, 2013 1:15 am UTC

### Re: Count by meaningful numbers

10 is the total number of hand digits on most humans/ primates. This is evolutionarily significant wrt tool use, and also is the basis of our commonly used decimal number system.
Robin, she.

Vytron
Posts: 429
Joined: Mon Oct 19, 2009 10:11 am UTC
Location: The Outside. I use She/He/Her/His/Him as gender neutral pronouns :P

### Re: Count by meaningful numbers

^But, if you check the video I posted before, that's only because the French made it so, and it's their fault we have to use 2 hands to count to 10 (when 1 hand is enough to count to 12). We might be a better mathematical world if it weren't for the French Revolution (specifically, many people "are bad at math" due to the difficulty added by the decimal system, so we'd have more people being good at it if we taught children a different system that is easier to use).

But why am I ranting here? o_O Er, back to topic. Good to see you contributing 12obin.

L

This is Landau's constant L, a number that we really don't know exactly, but it's a value between

10 < L*20 < 10.88

That is, it could be, for all we know, 10.000...big number of 0s...0001 (when multiplied by 20.)

Why is it important?

Well, let's go back to the complex plane. You know that when we talk about the number 1, we can imagine a line that goes from to 0 to 1:

Code: Select all

`.-------.0       1`

Well, on the imaginary numbers, we can draw a line that goes from 0 to i.

Code: Select all

`.i¦¦¦.0`

So what happens when you draw a circle, that touches these points, and has 0 at its center? We have what is called an "unit disk." A disk that is plotted which has radius 1, and from its center, the outline of the circle is at distance 1 from the center.

This is easy for the complex plane because it's a 2D object and you can only take a direction in 360 degrees or its fractions. But what happens when you take other kind of planes that are stretched or squeezed out? Imagine that you have an elastic page of paper, and that you stretch and squeeze it in some way, and then, you draw on it, the complex plane, and you draw a circle of length 1 as described above.

Once you let it go, you'd have a very deformed circle on your deformed plane, and now the distances from the outline of your circle to the center of the plane would vary.

Holomorphic functions are used to differentiate and analyze the many ways in where, say, you could stretch the elastic page and the many planes that you could have in it.

A biholomorphic function is a function that allows you to translate an image that you draw in some plane to another plane.

What Landau did was defining F to be the set of all holomorphic functions for which a given function on the unit disk gives you 1 with an input of 0, L_f would be the radius of the largest disk in f, and B_f would be the radius of the largest disk in a biholomorphic image of a subset of a unit disk (that is, a piece of the disk that can be translated into the function to give a value of 1 with an input of 0.)

Finally, we have to talk about infimums and supremums in mathematics.

Suppose you have a set that has, I don't know, all the positive numbers that are even and below 100, these would be:

2, 4, 6...96, 98

So in this set, you can create a new subset, composed of numbers multiple of 4. And you have this new set:

4, 8, 12...92, 96.

So in this set, the infimum is the lowest value (4), and the supremum is the highest value (96)

What Landau found out was that the infimum of the set of all possible values in L_f or B_f were his three constants:

8.66 + (20x10^-14) < B*20 < 9.44

10 < A*20 < 15.706

And our little friend.

10 < L*20 < 10.88

12obin
Posts: 91
Joined: Tue Mar 26, 2013 1:15 am UTC

### Re: Count by meaningful numbers

11 is the age I was the first time I menstruated, but then it went away again until like two years later.
Robin, she.

Vytron
Posts: 429
Joined: Mon Oct 19, 2009 10:11 am UTC
Location: The Outside. I use She/He/Her/His/Him as gender neutral pronouns :P

### Re: Count by meaningful numbers

11.0001...

No, huh, I kinda like, can't do this this time around, images of 12obin I can't get out of my head, too distracting...

12

It is meaningful because it's the two first digits of the name of the creator of this thread, who menstruated for the first time when E* was 11, but then it went away again until like two years later.

*) E, the ultimate gender neutral pronoun I just made up, not to be confused by Euler's Constant as mentioned by bachaddict.

12obin
Posts: 91
Joined: Tue Mar 26, 2013 1:15 am UTC

### Re: Count by meaningful numbers

(i.e. it is a sequence of numbers that resembles a capital letter R)
Robin, she.

Vytron
Posts: 429
Joined: Mon Oct 19, 2009 10:11 am UTC
Location: The Outside. I use She/He/Her/His/Him as gender neutral pronouns :P

### Re: Count by meaningful numbers

(I think the 1 is unnecessary, would work the same for me if it was just 2obin:

Or something)

2edundant
Spoiler:
2obin.png (14.61 KiB) Viewed 6333 times

12obin
Posts: 91
Joined: Tue Mar 26, 2013 1:15 am UTC

### Re: Count by meaningful numbers

(Tru. But I also use twelveobin in other places. Which I like better than twoobin.)

13
The number of people at The Last Supper in Christian tradition. Commonly seen as an unlucky number in Christian and Christian-influenced cultures.
Robin, she.

patzer
Posts: 431
Joined: Fri Mar 30, 2012 5:48 pm UTC
Contact:

### Re: Count by meaningful numbers

15.15426224147926...

This is ee.

It's interesting because if one plots a graph of x^y=y^x, for non-negative real values of x and y, two lines will appear. A straight line where x=y, and a curved line passing through points such as (4,2) and (2,4). The two lines cross at the point (e,e).

(Random piece of trivia I discovered when doodling on graph paper as a little math-obsessed child)
If it looks like a duck, and quacks like a duck, we have at least to consider the possibility that we have a small aquatic bird of the family Anatidae on our hands. –Douglas Adams

Vytron
Posts: 429
Joined: Mon Oct 19, 2009 10:11 am UTC
Location: The Outside. I use She/He/Her/His/Him as gender neutral pronouns :P

### Re: Count by meaningful numbers

(twelveobin sounds funny)

15.284473071784413259813974625

This is the Landau–Ramanujan constant (multiplied by 20)

Suppose you have a big number, called x. They found out that there's a number of integers less than x which are the sum of two square numbers.

The number of integers can be found by the formula:

x divided by square root of natural logarithm of x.

The constant appears when you define N(x) as the number of positive integers less than x that are the sum of two squares. Then you see what you get when you plug it into the formula:

(N(x) multiplied by square root of natural logarithm of x) divided by x

And see its limit as x approaches infinity.

You get:

15.284473071784413259813974625 divided by 20.

This is meaningful because what this means is, if you want to know how many integers there are below some number n that are the sum of two squares, all you need to do is multiply your number by 15.284473071784413259813974625 and divide by 20, and you'll get an approximation (the approximation will get better the bigger your number.)

phillip1882
Posts: 141
Joined: Fri Jun 14, 2013 9:11 pm UTC
Location: geogia
Contact:

### Re: Count by meaningful numbers

16.
2^4
4^2. very cool little property. the only value where i can get it two different ways with x^y and x != y.
good luck have fun

### Who is online

Users browsing this forum: flicky1991 and 40 guests