Talk:Factorial: Difference between revisions

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(added my two bits to the discusion about range limits. -- ~~~~)
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Just a thought...it would be interesting to programmatically identify the range limits of the factorial function for the unknown implementation. (The C and c++ implementations, for example, will overflow at different places depending on the range of int.) --[[User:Short Circuit|Short Circuit]] 18:33, 30 January 2009 (UTC)
Just a thought...it would be interesting to programmatically identify the range limits of the factorial function for the unknown implementation. (The C and c++ implementations, for example, will overflow at different places depending on the range of int.) --[[User:Short Circuit|Short Circuit]] 18:33, 30 January 2009 (UTC)

Yes, for non-native speakers of any language, it would be nice to know how big the '''thingys''' are: ''int, short, long, long long'', etc. For experienced programmers, I imagine this is old hat, but to programmers who can barely spell '''C''', ... not so obvious. --- [[User:Gerard Schildberger|Gerard Schildberger]] 21:35, 30 May 2012 (UTC)

<lang rexx>/* ┌────────────────────────────────────────────────────────────────┐
│ ───── Some factorial lengths ───── │
│ │
│ 10 ! = 7 digits │
│ 20 ! = 19 digits │
│ 52 ! = 68 digits │
│ 104 ! = 167 digits │
│ 208 ! = 394 digits │
│ 416 ! = 394 digits (8 deck shoe) │
│ │
│ 1k ! = 2,568 digits │
│ 10k ! = 35,660 digits │
│ 100k ! = 456,574 digits │
│ │
│ 1m ! = 5,565,709 digits │
│ 10m ! = 65,657,060 digits │
│ 100m ! = 756,570,556 digits │
│ │
└────────────────────────────────────────────────────────────────┘ */</lang>


== The moving of 80386 to x86 Assembly ==
== The moving of 80386 to x86 Assembly ==

Revision as of 21:35, 30 May 2012

Just a thought...it would be interesting to programmatically identify the range limits of the factorial function for the unknown implementation. (The C and c++ implementations, for example, will overflow at different places depending on the range of int.) --Short Circuit 18:33, 30 January 2009 (UTC)

Yes, for non-native speakers of any language, it would be nice to know how big the thingys are: int, short, long, long long, etc. For experienced programmers, I imagine this is old hat, but to programmers who can barely spell C, ... not so obvious. --- Gerard Schildberger 21:35, 30 May 2012 (UTC)

<lang rexx>/* ┌────────────────────────────────────────────────────────────────┐

  │               ───── Some factorial lengths ─────               │
  │                                                                │
  │                   10 !  =           7  digits                  │
  │                   20 !  =          19  digits                  │
  │                   52 !  =          68  digits                  │
  │                  104 !  =         167  digits                  │
  │                  208 !  =         394  digits                  │
  │                  416 !  =         394  digits   (8 deck shoe)  │
  │                                                                │
  │                   1k !  =       2,568  digits                  │
  │                  10k !  =      35,660  digits                  │
  │                 100k !  =     456,574  digits                  │
  │                                                                │
  │                   1m !  =   5,565,709  digits                  │
  │                  10m !  =  65,657,060  digits                  │
  │                 100m !  = 756,570,556  digits                  │
  │                                                                │
  └────────────────────────────────────────────────────────────────┘  */</lang> 

The moving of 80386 to x86 Assembly

I think it is better to use generic x86, and at most to specify a "works with", if needed, rather than let proliferate 80286, 80386, 80486, ... —ShinTakezou 14:56, 27 April 2010 (UTC)

I agree to a point; there's a definite progression and tendency toward backwards-compatibility. However, there are incompatible revisions. It's possible that different modes (real, protected, long and legacy) warrant some degree of recognition as their own languages--these modes represent forward and reverse compatibility constraints. --Michael Mol 16:03, 27 April 2010 (UTC)