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Full Discussion: README: Factorial quick chart with sed & bc:
Top Forums Shell Programming and Scripting README: Factorial quick chart with sed & bc: Post 302767355 by rveri on Wednesday 6th of February 2013 06:08:44 PM
Old 02-06-2013
Jotne, thanks for checking & suggestions:
Yes, awk can goes upto 170 only,
- I have cheked with hp-ux version and linux suse versions too:

With the awk version Factorial:
170! Gives:
Code:
168*169*170= 725741561530799404539963...48167424" [ length=307 column long.]

171! Gives: infinity.
Code:
168*169*170*171= inf


Scrutinizer, thanks ,awk code works great thanks for making the awk version of factorial, seems there is a limitation of 171th calculation. But it is good to have the code .Thanks,


- For the first unix command based code with sed & bc:
Out of curiosity I tried Jotne's remark for n=1000 value and it worked like a charm .

Also wondered when I put it n=2000, we know factorial of 2000 is going to be huge, and this too worked on Suse 11.2 VM perfectly. It was kind of grabled the display at the 19xx as it was processing so quickly.

---------- Post updated at 06:08 PM ---------- Previous update was at 05:56 PM ----------

All, Out of curiosity I increased factorial value , n=2000 and it worked to:
Code:
n=2000;for i in `seq $n`;do printf "`seq $i|xargs|sed 's/ /*/g'`= ";echo "`seq $i|xargs|sed 's/ /*/g'`"| bc;done






Showing factorial of 2000 below :
on Linux Suse 11.2 VM , shell = /bin/bash
Code:
GNU bash, version 3.2.51(1)-release (x86_64-suse-linux-gnu)

Code:
<.......>

represents the range of the display:



Code:
2000! =

Code:
1*2*3*4*5*6*7*8*9*<.......>1994*1995*1996*1997*1998*1999*2000= 33162750924506332411753933805763240382811172081057803945719354370603\
80779056008224002732308597325922554023529412258341092580848174152937\
96131386633526343688905634058556163940605117252571870647856393544045\
40524395746703767410872297043468415834375243158087753364512748799543\
68592474080324089465615072332506527976557571796715367186893590561128\
15871601717232657156110004214012420433842573712700175883547796899921\
28352899666585340557985490365736635013338655040117201215263548803826\
81521522469209952060315644185654806759464970515522882052348999957264\
50814065536678969532101467622671332026831552205194494461618239275204\
02652972263150257475204829606475092739416585628353177957448287631459\
64503739913273341772636088524900935066216101444597094127078213137325\
63831572302019949914958316470942774473870327985549674298608839376326\
82415247883438746959582925774057453983750158581546813629421794997239\
98135994810165565638760342273129122503847098729096266224619710766059\
31550201895135583165357871492290916779049702247094611937607785165110\
68443225590564873626653037738465039078804952460071254940261456607225\
41363027549136715834060978310749452822174907813477096932415561113398\
28051358600690594619965257310741177081519922564516778571458056602185\
65476095237746301667942248844448579834980154803262082989096585738175\
18886193766928282798884535846398965942139529844652910920091037100461\
49449915828588050761867924946385180879874512891408019340074625920057\
09872957859964365065589561241023101869055606030878362911050560124590\
89983834107993679020520768586691834779065585447001486926569246319333\
37612428097420067172846361939249698628468719993450393889367270487127\
17273456170035486747750910295552395354794110742191330135681954109194\
14627664175421615876252628580898012224438902486771820549594157519917\
01271767571787495861619665931878855141835782092601482071777331735396\
03430496908207058995870138198081303559016076290838857456128821769813\
61824835767392183031184147191339868928423440007792466912097667316514\
33494437473235636572048844478331854941693030124531676232745367879322\
84747382448509228313995250973250597912703104768360148119110222925337\
26976938236700575656124002905760438528529029376064795334581796661238\
39605262549107186663869354766108455046198102084050635827676526589492\
39324951968595417167241932953068367349554400458635983816104305944982\
66275306054235807558941082788804278259510898806354105679179509740177\
80688782869810219010900148352061688883720250310665922068601483649830\
53278208826353655804360568678128416921713304714117631217589577712263\
75847531235172309905498292101346873042058980144180638753826641698977\
04237759406280877253702265426530580862379301422675821187143502918637\
63634030017325181826207603974736959520264263236414544685111342720215\
04583838510101369413130348562219166316238926327658153550112763078250\
59969158824533457435437863683173730673296589355199694458236873508830\
27865770087974988999234355556624068283476378468518384497364887395247\
51032242221105612012958296571913681086938254757641188868793467251912\
46192151144738836269591643672490071653428228152661247800463922544945\
17036372362794075778454209104830546165619062217428698160297332404652\
02019928138548826819510072828697010707375009276664875021747753727423\
51508748246720274170031581122805896178122160747437947510950620938556\
67458125251837668215771280786149925587613235295042234638787895485088\
57644661362903941276659780442020922813379871159008962648789424132104\
54925003566670632909441579372986743421470507213588932019580723064781\
49842952259558901275482397177332572291032576092979073329954505638836\
26404746502450808094691160726320874941439730007041114185955302788273\
57654819182002449697761111346318195282761590964189790958117338627206\
08891043294524497853514701411244214305548608963957837834732532359576\
32914389252883939862562732428627755631404638303891684216331134456363\
09571965978466338551492316196335675355138403425804162919837822266909\
52177015317533873028461084188655413832917195133211789572854166208482\
36828179325129312375215419269702697032994776438233864830088715303734\
05666383868294088487730721762268849023084934661194260180272613802108\
00507821574100605484820134785957810277070778065551277254050167433239\
60662532164150048087724030476119290322101543853531386855384864255707\
90795341176519571188683739880683895792743749683498142923292196309777\
09014393684365533335930782018131299345502420604456334057860696247196\
15056033948995233218004343599672566239271964354028720554750120798543\
31970674797313126813523653744085662263206768837585132782896252333284\
34181297762469707954343600349234315923967476363891211528540665778364\
62139112474470512552263427012395270181270454916480459322481088586746\
00952306793175967755581011679940005249806303763141344412269037034987\
35579991600925924807505248554156826628176081544630830540667741263012\
44418642041083731190931300011544705602777737243780671888997708510567\
27276781247198832857695844217588895160467868204810010047816462358220\
83853248813427083407986848663216272020882330872781908537884546913155\
60217288731219073939652092602291014775270809308653649798585540105774\
50279289814603688431821508637246216967872282169347370599286277112447\
69092090298832016683017027342025976567170986331121634950217126442682\
71196502640542282317596308744753018471940955242634114984695080733900\
80000000000000000000000000000000000000000000000000000000000000000000\
00000000000000000000000000000000000000000000000000000000000000000000\
00000000000000000000000000000000000000000000000000000000000000000000\
00000000000000000000000000000000000000000000000000000000000000000000\
00000000000000000000000000000000000000000000000000000000000000000000\
00000000000000000000000000000000000000000000000000000000000000000000\
00000000000000000000000000000000000000000000000000000000000000000000\
000000000000000000000000

Not sure how far it can go. Need to try sometime, but this looks amazing calculations by the cpu.
 

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