| slovo | definícia |
random number
(foldoc) | pseudorandom number
random number
One of a sequence of numbers generated by some
algorithm so as to have an even distribution over some range
of values and minimal correlation between successive
values.
Pseudorandom numbers are used in simulation and
encryption. They are pseudorandom not random because the
sequence eventually repeats exactly and is entirely determined
by the initial conditions.
One of the simplest algorithms is
x[i+1] = (a * x[i] + c) mod m
but this repeats after at most m numbers and successive
numbers are closely related. Better algorithms generally use
more previous numbers to calculate the next number.
(http://random.mat.sbg.ac.at/).
(2007-06-29)
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| | podobné slovo | definícia |
random number generator
(encz) | random number generator, n: |
random number generator
(wn) | random number generator
n 1: a routine designed to yield a random number |
pseudorandom number
(foldoc) | pseudorandom number
random number
One of a sequence of numbers generated by some
algorithm so as to have an even distribution over some range
of values and minimal correlation between successive
values.
Pseudorandom numbers are used in simulation and
encryption. They are pseudorandom not random because the
sequence eventually repeats exactly and is entirely determined
by the initial conditions.
One of the simplest algorithms is
x[i+1] = (a * x[i] + c) mod m
but this repeats after at most m numbers and successive
numbers are closely related. Better algorithms generally use
more previous numbers to calculate the next number.
(http://random.mat.sbg.ac.at/).
(2007-06-29)
|
random number god
(jargon) | Random Number God
[rec.games.roguelike.angband; often abbreviated ‘RNG’] The malign force
which lurks behind the random number generator in Angband (and by
extension elsewhere). A dark god that demands sacrifices and toys with its
victims. “I just found a really great item; I suppose the RNG is about to
punish me...” Apparently, Angband's random number generator occasionally
gets locked in a repetition, so you get something with a 3% chance
happening 8 times in a row. Improbable, but far too common to be pure
chance. Compare Shub-Internet.
|
random numbers
(jargon) | random numbers
n.
When one wishes to specify a large but random number of things, and the
context is inappropriate for N, certain numbers are preferred by hacker
tradition (that is, easily recognized as placeholders). These include the
following:
┌───┬─────────────────────────────────────────────────────────────────────┐
│ │Long described at MIT as ‘the least random number’; see also 23. This│
│17 │may be Discordian in origin, or it may be related to some in-jokes │
│ │about 17 and “yellow pig” propagated by the mathematician Michael │
│ │Spivak. │
├───┼─────────────────────────────────────────────────────────────────────┤
│23 │Sacred number of Eris, Goddess of Discord (along with 17 and 5). │
├───┼─────────────────────────────────────────────────────────────────────┤
│ │The most random two-digit number is 37, When groups of people are │
│37 │polled to pick a “random number between 1 and 100”, the most commonly│
│ │chosen number is 37. │
├───┼─────────────────────────────────────────────────────────────────────┤
│ │The Answer to the Ultimate Question of Life, the Universe, and │
│42 │Everything (“what is 6 times 9”, correct in base 13). (This answer is│
│ │perhaps not completely fortuitous; in Kabbalism, the true unspeakable│
│ │name of God is said to have 42 characters.) │
├───┼─────────────────────────────────────────────────────────────────────┤
│69 │From the sexual act. This one was favored in MIT's ITS culture. │
├───┼─────────────────────────────────────────────────────────────────────┤
│105│69 hex = 105 decimal, and 69 decimal = 105 octal. │
├───┼─────────────────────────────────────────────────────────────────────┤
│666│In Christian mythology, the Number of the Beast. │
└───┴─────────────────────────────────────────────────────────────────────┘
For further enlightenment, study the Principia Discordia, The Hitchhiker's
Guide to the Galaxy, The Joy of Sex, and the Christian Bible (Revelation
13:18). See also Discordianism or consult your pineal gland. See also {
for values of}.
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