70 lines
3.6 KiB
Plaintext
70 lines
3.6 KiB
Plaintext
bignum
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/bignuhm/ , n. [common; orig. from MIT MacLISP] 1. [techspeak] A
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multiple-precision computer representation for very large integers. 2. More
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generally, any very large number. Have you ever looked at the United States
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Budget? There's bignums for you! 3. [Stanford] In backgammon, large numbers
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on the dice especially a roll of double fives or double sixes (compare moby
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, sense 4). See also El Camino Bignum. Sense 1 may require some explanation.
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Most computer languages provide a kind of data called integer , but such
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computer integers are usually very limited in size; usually they must be
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smaller than 2 31 (2,147,483,648). If you want to work with numbers larger
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than that, you have to use floating-point numbers, which are usually
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accurate to only six or seven decimal places. Computer languages that
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provide bignums can perform exact calculations on very large numbers, such
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as 1000! (the factorial of 1000, which is 1000 times 999 times 998 times. ..
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times 2 times 1). For example, this value for 1000! was computed by the
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MacLISP system using bignums:
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40238726007709377354370243392300398571937486421071
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46325437999104299385123986290205920442084869694048
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00479988610197196058631666872994808558901323829669
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94459099742450408707375991882362772718873251977950
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59509952761208749754624970436014182780946464962910
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56393887437886487337119181045825783647849977012476
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63288983595573543251318532395846307555740911426241
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74743493475534286465766116677973966688202912073791
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43853719588249808126867838374559731746136085379534
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52422158659320192809087829730843139284440328123155
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86110369768013573042161687476096758713483120254785
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89320767169132448426236131412508780208000261683151
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02734182797770478463586817016436502415369139828126
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48102130927612448963599287051149649754199093422215
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66832572080821333186116811553615836546984046708975
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60290095053761647584772842188967964624494516076535
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34081989013854424879849599533191017233555566021394
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50399736280750137837615307127761926849034352625200
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01588853514733161170210396817592151090778801939317
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81141945452572238655414610628921879602238389714760
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88506276862967146674697562911234082439208160153780
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88989396451826324367161676217916890977991190375403
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12746222899880051954444142820121873617459926429565
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81746628302955570299024324153181617210465832036786
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90611726015878352075151628422554026517048330422614
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39742869330616908979684825901254583271682264580665
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26769958652682272807075781391858178889652208164348
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34482599326604336766017699961283186078838615027946
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59551311565520360939881806121385586003014356945272
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24206344631797460594682573103790084024432438465657
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24501440282188525247093519062092902313649327349756
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55139587205596542287497740114133469627154228458623
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77387538230483865688976461927383814900140767310446
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64025989949022222176590433990188601856652648506179
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97023561938970178600408118897299183110211712298459
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01641921068884387121855646124960798722908519296819
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37238864261483965738229112312502418664935314397013
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74285319266498753372189406942814341185201580141233
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44828015051399694290153483077644569099073152433278
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28826986460278986432113908350621709500259738986355
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42771967428222487575867657523442202075736305694988
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25087968928162753848863396909959826280956121450994
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87170124451646126037902930912088908694202851064018
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21543994571568059418727489980942547421735824010636
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77404595741785160829230135358081840096996372524230
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56085590370062427124341690900415369010593398383577
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79394109700277534720000000000000000000000000000000
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00000000000000000000000000000000000000000000000000
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00000000000000000000000000000000000000000000000000
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00000000000000000000000000000000000000000000000000
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00000000000000000000000000000000000000000000000000 00000000000000000.
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