jamesrandom
v1.0.5
Published
This algorithm implements the original universal random number generator as proposed by Marsaglia & Zaman in report FSU-SCRI-87-50 and coded in FORTRAN77 by Fred James as the RANMAR generator, part of the MATHLIB HEP library.
Readme
JamesRandom Module
This pseudo random number generator have been written in JavaScript in order to bring a better mathematical behavior that it is present in Math.Random built in function.
JamesRandom is based on CLHEP - A Class Library for High Energy Physics, which is written in C++. This JamesRandom written in JS does not have all the functions that have JamesRandom CLHEP, but it does what it must to do, i.e. generates random numbers (by default between 0 and 1).
One way to use it is:
var JamesRandom = require('jamesrandom');
var gen = new JamesRandom({seed: 12345});
var A = [];
var sizeA = 40;
gen.FlatArray( sizeA, A );
console.log(A);Public Functions
Name()
Returns String "HepJamesRandom".
Flat()
Returns one pseudo random number between 0 and 1.
FlatArray( size, vect )
Where size is an integer and is intended to be the size of the array vect of pseudorandom numbers.
SetSeed( seed, dum )
Where seed is an integer and dum is another integer generally 0.
SetSeeds( seed, dum )
Where seed is an integer and dum is another integer generally 0.
Static Public Functions
JamesRandom.EngineName()
Returns String "HepJamesRandom".
JamesRandom.BeginTag()
Returns String "JamesRandom-Begin".
Public Variables
Variables that keep the present status of the generator
u
This is an array of size 97.
c
Double.
cd
Double.
cm
Double.
i97
Integer.
j97
Integer.