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Re: How to use GNU MP in octave?


From: Tom Holroyd
Subject: Re: How to use GNU MP in octave?
Date: Tue, 24 May 2005 03:00:08 -0400 (EDT)

On Tue, 24 May 2005, lming_44 wrote:

Hi!
   I have a problem in calculating 1000! in octave.

Sometimes the right answer is not to use octave.

% python
Python 2.3.4 (#1, Feb  2 2005, 12:11:53)
[GCC 3.4.2 20041017 (Red Hat 3.4.2-6.fc3)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
def fac(n):
...         f = 1
...         while n > 1:
...                 f *= n
...                 n -= 1
...         return f
...
fac(10L)
3628800L
fac(100L)
93326215443944152681699238856266700490715968264381621468592963895217599993229915 608941463976156518286253697920827223758251185210916864000000000000000000000000L
fac(1000L)
40238726007709377354370243392300398571937486421071463254379991042993851239862902 05920442084869694048004799886101971960586316668729948085589013238296699445909974 24504087073759918823627727188732519779505950995276120874975462497043601418278094 64649629105639388743788648733711918104582578364784997701247663288983595573543251 31853239584630755574091142624174743493475534286465766116677973966688202912073791 43853719588249808126867838374559731746136085379534524221586593201928090878297308 43139284440328123155861103697680135730421616874760967587134831202547858932076716 91324484262361314125087802080002616831510273418279777047846358681701643650241536 91398281264810213092761244896359928705114964975419909342221566832572080821333186 11681155361583654698404670897560290095053761647584772842188967964624494516076535 34081989013854424879849599533191017233555566021394503997362807501378376153071277 61926849034352625200015888535147331611702103968175921510907788019393178114194545 25722386554146106289218796022383897147608850627686296714667469756291123408243920 81601537808898939645182632436716167621791689097799119037540312746222899880051954 44414282012187361745992642956581746628302955570299024324153181617210465832036786 90611726015878352075151628422554026517048330422614397428693306169089796848259012 54583271682264580665267699586526822728070757813918581788896522081643483448259932 66043367660176999612831860788386150279465955131156552036093988180612138558600301 43569452722420634463179746059468257310379008402443243846565724501440282188525247 09351906209290231364932734975655139587205596542287497740114133469627154228458623 77387538230483865688976461927383814900140767310446640259899490222221765904339901 88601856652648506179970235619389701786004081188972991831102117122984590164192106 88843871218556461249607987229085192968193723886426148396573822911231250241866493 53143970137428531926649875337218940694281434118520158014123344828015051399694290 15348307764456909907315243327828826986460278986432113908350621709500259738986355 42771967428222487575867657523442202075736305694988250879689281627538488633969099 59826280956121450994871701244516461260379029309120889086942028510640182154399457 15680594187274899809425474217358240106367740459574178516082923013535808184009699 63725242305608559037006242712434169090041536901059339838357779394109700277534720 00000000000000000000000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000000000000000000000 00000000L

Dr. Tom Holroyd
"A man of genius makes no mistakes. His errors are volitional and
are the portals of discovery." -- James Joyce



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