pseudorandom number generator
Англо-русский словарь компьютерных терминов:
pseudorandom number
=
pseudo-random number
Англо-русский научно-технический словарь:
pseudorandom number
математика
псевдослучайное число
Free On-line Dictionary of Computing:
pseudorandom 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)