MersenneTwister19937js/ 040777 000000 000000 00000000000 10457705547 013026 5 ustar root MersenneTwister19937js/MersenneTwister19937.html 100666 000000 000000 00000007151 10457675376 017476 0 ustar root
MersenneTwister19937
1000 outputs of genrand_int32()
1000 outputs of genrand_real2()
1000 outputs of genrand_int31()
1000 outputs of genrand_real1()
1000 outputs of genrand_real3()
1000 outputs of genrand_res53()
MersenneTwister19937js/MersenneTwister19937.js 100666 000000 000000 00000022207 10457703102 017120 0 ustar root // this program is a JavaScript version of Mersenne Twister,
// a straight conversion from the original program, mt19937ar.c,
// translated by y. okada on july 17, 2006.
// and modified a little at july 20, 2006, but there are not any substantial differences.
// in this program, procedure descriptions and comments of original source code were not removed.
// lines commented with //c// were originally descriptions of c procedure. and a few following lines are appropriate JavaScript descriptions.
// lines commented with /* and */ are original comments.
// lines commented with // are additional comments in this JavaScript version.
/*
A C-program for MT19937, with initialization improved 2002/1/26.
Coded by Takuji Nishimura and Makoto Matsumoto.
Before using, initialize the state by using init_genrand(seed)
or init_by_array(init_key, key_length).
Copyright (C) 1997 - 2002, Makoto Matsumoto and Takuji Nishimura,
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The names of its contributors may not be used to endorse or promote
products derived from this software without specific prior written
permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Any feedback is very welcome.
http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/emt.html
email: m-mat @ math.sci.hiroshima-u.ac.jp (remove space)
*/
/* Period parameters */
//c//#define N 624
//c//#define M 397
//c//#define MATRIX_A 0x9908b0dfUL /* constant vector a */
//c//#define UPPER_MASK 0x80000000UL /* most significant w-r bits */
//c//#define LOWER_MASK 0x7fffffffUL /* least significant r bits */
N = 624;
M = 397;
MATRIX_A = 0x9908b0df; /* constant vector a */
UPPER_MASK = 0x80000000; /* most significant w-r bits */
LOWER_MASK = 0x7fffffff; /* least significant r bits */
//c//static unsigned long mt[N]; /* the array for the state vector */
//c//static int mti=N+1; /* mti==N+1 means mt[N] is not initialized */
var mt = new Array(N); /* the array for the state vector */
var mti = N+1; /* mti==N+1 means mt[N] is not initialized */
function unsigned32 (n1) // returns a 32-bits unsiged integer from an operand to which applied a bit operator.
{
return n1 < 0 ? (n1 ^ UPPER_MASK) + UPPER_MASK : n1;
}
function subtraction32 (n1, n2) // emulates lowerflow of a c 32-bits unsiged integer variable, instead of the operator -. these both arguments must be non-negative integers expressible using unsigned 32 bits.
{
return n1 < n2 ? unsigned32((0x100000000 - (n2 - n1)) & 0xffffffff) : n1 - n2;
}
function addition32 (n1, n2) // emulates overflow of a c 32-bits unsiged integer variable, instead of the operator +. these both arguments must be non-negative integers expressible using unsigned 32 bits.
{
return unsigned32((n1 + n2) & 0xffffffff)
}
function multiplication32 (n1, n2) // emulates overflow of a c 32-bits unsiged integer variable, instead of the operator *. these both arguments must be non-negative integers expressible using unsigned 32 bits.
{
var sum = 0;
for (var i = 0; i < 32; ++i){
if ((n1 >>> i) & 0x1){
sum = addition32(sum, unsigned32(n2 << i));
}
}
return sum;
}
/* initializes mt[N] with a seed */
//c//void init_genrand(unsigned long s)
function init_genrand(s)
{
//c//mt[0]= s & 0xffffffff;
mt[0]= unsigned32(s & 0xffffffff);
for (mti=1; mti> 30)) + mti);
addition32(multiplication32(1812433253, unsigned32(mt[mti-1] ^ (mt[mti-1] >>> 30))), mti);
/* See Knuth TAOCP Vol2. 3rd Ed. P.106 for multiplier. */
/* In the previous versions, MSBs of the seed affect */
/* only MSBs of the array mt[]. */
/* 2002/01/09 modified by Makoto Matsumoto */
//c//mt[mti] &= 0xffffffff;
mt[mti] = unsigned32(mt[mti] & 0xffffffff);
/* for >32 bit machines */
}
}
/* initialize by an array with array-length */
/* init_key is the array for initializing keys */
/* key_length is its length */
/* slight change for C++, 2004/2/26 */
//c//void init_by_array(unsigned long init_key[], int key_length)
function init_by_array(init_key, key_length)
{
//c//int i, j, k;
var i, j, k;
init_genrand(19650218);
i=1; j=0;
k = (N>key_length ? N : key_length);
for (; k; k--) {
//c//mt[i] = (mt[i] ^ ((mt[i-1] ^ (mt[i-1] >> 30)) * 1664525))
//c// + init_key[j] + j; /* non linear */
mt[i] = addition32(addition32(unsigned32(mt[i] ^ multiplication32(unsigned32(mt[i-1] ^ (mt[i-1] >>> 30)), 1664525)), init_key[j]), j);
mt[i] =
//c//mt[i] &= 0xffffffff; /* for WORDSIZE > 32 machines */
unsigned32(mt[i] & 0xffffffff);
i++; j++;
if (i>=N) { mt[0] = mt[N-1]; i=1; }
if (j>=key_length) j=0;
}
for (k=N-1; k; k--) {
//c//mt[i] = (mt[i] ^ ((mt[i-1] ^ (mt[i-1] >> 30)) * 1566083941))
//c//- i; /* non linear */
mt[i] = subtraction32(unsigned32((dbg=mt[i]) ^ multiplication32(unsigned32(mt[i-1] ^ (mt[i-1] >>> 30)), 1566083941)), i);
//c//mt[i] &= 0xffffffff; /* for WORDSIZE > 32 machines */
mt[i] = unsigned32(mt[i] & 0xffffffff);
i++;
if (i>=N) { mt[0] = mt[N-1]; i=1; }
}
mt[0] = 0x80000000; /* MSB is 1; assuring non-zero initial array */
}
/* generates a random number on [0,0xffffffff]-interval */
//c//unsigned long genrand_int32(void)
function genrand_int32()
{
//c//unsigned long y;
//c//static unsigned long mag01[2]={0x0UL, MATRIX_A};
var y;
var mag01 = new Array(0x0, MATRIX_A);
/* mag01[x] = x * MATRIX_A for x=0,1 */
if (mti >= N) { /* generate N words at one time */
//c//int kk;
var kk;
if (mti == N+1) /* if init_genrand() has not been called, */
init_genrand(5489); /* a default initial seed is used */
for (kk=0;kk> 1) ^ mag01[y & 0x1];
y = unsigned32((mt[kk]&UPPER_MASK)|(mt[kk+1]&LOWER_MASK));
mt[kk] = unsigned32(mt[kk+M] ^ (y >>> 1) ^ mag01[y & 0x1]);
}
for (;kk> 1) ^ mag01[y & 0x1];
y = unsigned32((mt[kk]&UPPER_MASK)|(mt[kk+1]&LOWER_MASK));
mt[kk] = unsigned32(mt[kk+(M-N)] ^ (y >>> 1) ^ mag01[y & 0x1]);
}
//c//y = (mt[N-1]&UPPER_MASK)|(mt[0]&LOWER_MASK);
//c//mt[N-1] = mt[M-1] ^ (y >> 1) ^ mag01[y & 0x1];
y = unsigned32((mt[N-1]&UPPER_MASK)|(mt[0]&LOWER_MASK));
mt[N-1] = unsigned32(mt[M-1] ^ (y >>> 1) ^ mag01[y & 0x1]);
mti = 0;
}
y = mt[mti++];
/* Tempering */
//c//y ^= (y >> 11);
//c//y ^= (y << 7) & 0x9d2c5680;
//c//y ^= (y << 15) & 0xefc60000;
//c//y ^= (y >> 18);
y = unsigned32(y ^ (y >>> 11));
y = unsigned32(y ^ ((y << 7) & 0x9d2c5680));
y = unsigned32(y ^ ((y << 15) & 0xefc60000));
y = unsigned32(y ^ (y >>> 18));
return y;
}
/* generates a random number on [0,0x7fffffff]-interval */
//c//long genrand_int31(void)
function genrand_int31()
{
//c//return (genrand_int32()>>1);
return (genrand_int32()>>>1);
}
/* generates a random number on [0,1]-real-interval */
//c//double genrand_real1(void)
function genrand_real1()
{
return genrand_int32()*(1.0/4294967295.0);
/* divided by 2^32-1 */
}
/* generates a random number on [0,1)-real-interval */
//c//double genrand_real2(void)
function genrand_real2()
{
return genrand_int32()*(1.0/4294967296.0);
/* divided by 2^32 */
}
/* generates a random number on (0,1)-real-interval */
//c//double genrand_real3(void)
function genrand_real3()
{
return ((genrand_int32()) + 0.5)*(1.0/4294967296.0);
/* divided by 2^32 */
}
/* generates a random number on [0,1) with 53-bit resolution*/
//c//double genrand_res53(void)
function genrand_res53()
{
//c//unsigned long a=genrand_int32()>>5, b=genrand_int32()>>6;
var a=genrand_int32()>>>5, b=genrand_int32()>>>6;
return(a*67108864.0+b)*(1.0/9007199254740992.0);
}
/* These real versions are due to Isaku Wada, 2002/01/09 added */
MersenneTwister19937js/MersenneTwister19937class.html 100666 000000 000000 00000007457 10457675301 020521 0 ustar root
MersenneTwister19937class
1000 outputs of genrand_int32()
1000 outputs of genrand_real2()
1000 outputs of genrand_int31()
1000 outputs of genrand_real1()
1000 outputs of genrand_real3()
1000 outputs of genrand_res53()
MersenneTwister19937js/MersenneTwister19937class.js 100666 000000 000000 00000023647 10457677265 020203 0 ustar root // this program is a JavaScript version of Mersenne Twister, with concealment and encapsulation in class,
// an almost straight conversion from the original program, mt19937ar.c,
// translated by y. okada on July 17, 2006.
// and modified a little at july 20, 2006, but there are not any substantial differences.
// in this program, procedure descriptions and comments of original source code were not removed.
// lines commented with //c// were originally descriptions of c procedure. and a few following lines are appropriate JavaScript descriptions.
// lines commented with /* and */ are original comments.
// lines commented with // are additional comments in this JavaScript version.
// before using this version, create at least one instance of MersenneTwister19937 class, and initialize the each state, given below in c comments, of all the instances.
/*
A C-program for MT19937, with initialization improved 2002/1/26.
Coded by Takuji Nishimura and Makoto Matsumoto.
Before using, initialize the state by using init_genrand(seed)
or init_by_array(init_key, key_length).
Copyright (C) 1997 - 2002, Makoto Matsumoto and Takuji Nishimura,
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. The names of its contributors may not be used to endorse or promote
products derived from this software without specific prior written
permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Any feedback is very welcome.
http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/emt.html
email: m-mat @ math.sci.hiroshima-u.ac.jp (remove space)
*/
function MersenneTwister19937()
{
/* Period parameters */
//c//#define N 624
//c//#define M 397
//c//#define MATRIX_A 0x9908b0dfUL /* constant vector a */
//c//#define UPPER_MASK 0x80000000UL /* most significant w-r bits */
//c//#define LOWER_MASK 0x7fffffffUL /* least significant r bits */
N = 624;
M = 397;
MATRIX_A = 0x9908b0df; /* constant vector a */
UPPER_MASK = 0x80000000; /* most significant w-r bits */
LOWER_MASK = 0x7fffffff; /* least significant r bits */
//c//static unsigned long mt[N]; /* the array for the state vector */
//c//static int mti=N+1; /* mti==N+1 means mt[N] is not initialized */
var mt = new Array(N); /* the array for the state vector */
var mti = N+1; /* mti==N+1 means mt[N] is not initialized */
function unsigned32 (n1) // returns a 32-bits unsiged integer from an operand to which applied a bit operator.
{
return n1 < 0 ? (n1 ^ UPPER_MASK) + UPPER_MASK : n1;
}
function subtraction32 (n1, n2) // emulates lowerflow of a c 32-bits unsiged integer variable, instead of the operator -. these both arguments must be non-negative integers expressible using unsigned 32 bits.
{
return n1 < n2 ? unsigned32((0x100000000 - (n2 - n1)) & 0xffffffff) : n1 - n2;
}
function addition32 (n1, n2) // emulates overflow of a c 32-bits unsiged integer variable, instead of the operator +. these both arguments must be non-negative integers expressible using unsigned 32 bits.
{
return unsigned32((n1 + n2) & 0xffffffff)
}
function multiplication32 (n1, n2) // emulates overflow of a c 32-bits unsiged integer variable, instead of the operator *. these both arguments must be non-negative integers expressible using unsigned 32 bits.
{
var sum = 0;
for (var i = 0; i < 32; ++i){
if ((n1 >>> i) & 0x1){
sum = addition32(sum, unsigned32(n2 << i));
}
}
return sum;
}
/* initializes mt[N] with a seed */
//c//void init_genrand(unsigned long s)
this.init_genrand = function (s)
{
//c//mt[0]= s & 0xffffffff;
mt[0]= unsigned32(s & 0xffffffff);
for (mti=1; mti> 30)) + mti);
addition32(multiplication32(1812433253, unsigned32(mt[mti-1] ^ (mt[mti-1] >>> 30))), mti);
/* See Knuth TAOCP Vol2. 3rd Ed. P.106 for multiplier. */
/* In the previous versions, MSBs of the seed affect */
/* only MSBs of the array mt[]. */
/* 2002/01/09 modified by Makoto Matsumoto */
//c//mt[mti] &= 0xffffffff;
mt[mti] = unsigned32(mt[mti] & 0xffffffff);
/* for >32 bit machines */
}
}
/* initialize by an array with array-length */
/* init_key is the array for initializing keys */
/* key_length is its length */
/* slight change for C++, 2004/2/26 */
//c//void init_by_array(unsigned long init_key[], int key_length)
this.init_by_array = function (init_key, key_length)
{
//c//int i, j, k;
var i, j, k;
//c//init_genrand(19650218);
this.init_genrand(19650218);
i=1; j=0;
k = (N>key_length ? N : key_length);
for (; k; k--) {
//c//mt[i] = (mt[i] ^ ((mt[i-1] ^ (mt[i-1] >> 30)) * 1664525))
//c// + init_key[j] + j; /* non linear */
mt[i] = addition32(addition32(unsigned32(mt[i] ^ multiplication32(unsigned32(mt[i-1] ^ (mt[i-1] >>> 30)), 1664525)), init_key[j]), j);
mt[i] =
//c//mt[i] &= 0xffffffff; /* for WORDSIZE > 32 machines */
unsigned32(mt[i] & 0xffffffff);
i++; j++;
if (i>=N) { mt[0] = mt[N-1]; i=1; }
if (j>=key_length) j=0;
}
for (k=N-1; k; k--) {
//c//mt[i] = (mt[i] ^ ((mt[i-1] ^ (mt[i-1] >> 30)) * 1566083941))
//c//- i; /* non linear */
mt[i] = subtraction32(unsigned32((dbg=mt[i]) ^ multiplication32(unsigned32(mt[i-1] ^ (mt[i-1] >>> 30)), 1566083941)), i);
//c//mt[i] &= 0xffffffff; /* for WORDSIZE > 32 machines */
mt[i] = unsigned32(mt[i] & 0xffffffff);
i++;
if (i>=N) { mt[0] = mt[N-1]; i=1; }
}
mt[0] = 0x80000000; /* MSB is 1; assuring non-zero initial array */
}
/* generates a random number on [0,0xffffffff]-interval */
//c//unsigned long genrand_int32(void)
this.genrand_int32 = function ()
{
//c//unsigned long y;
//c//static unsigned long mag01[2]={0x0UL, MATRIX_A};
var y;
var mag01 = new Array(0x0, MATRIX_A);
/* mag01[x] = x * MATRIX_A for x=0,1 */
if (mti >= N) { /* generate N words at one time */
//c//int kk;
var kk;
if (mti == N+1) /* if init_genrand() has not been called, */
//c//init_genrand(5489); /* a default initial seed is used */
this.init_genrand(5489); /* a default initial seed is used */
for (kk=0;kk> 1) ^ mag01[y & 0x1];
y = unsigned32((mt[kk]&UPPER_MASK)|(mt[kk+1]&LOWER_MASK));
mt[kk] = unsigned32(mt[kk+M] ^ (y >>> 1) ^ mag01[y & 0x1]);
}
for (;kk> 1) ^ mag01[y & 0x1];
y = unsigned32((mt[kk]&UPPER_MASK)|(mt[kk+1]&LOWER_MASK));
mt[kk] = unsigned32(mt[kk+(M-N)] ^ (y >>> 1) ^ mag01[y & 0x1]);
}
//c//y = (mt[N-1]&UPPER_MASK)|(mt[0]&LOWER_MASK);
//c//mt[N-1] = mt[M-1] ^ (y >> 1) ^ mag01[y & 0x1];
y = unsigned32((mt[N-1]&UPPER_MASK)|(mt[0]&LOWER_MASK));
mt[N-1] = unsigned32(mt[M-1] ^ (y >>> 1) ^ mag01[y & 0x1]);
mti = 0;
}
y = mt[mti++];
/* Tempering */
//c//y ^= (y >> 11);
//c//y ^= (y << 7) & 0x9d2c5680;
//c//y ^= (y << 15) & 0xefc60000;
//c//y ^= (y >> 18);
y = unsigned32(y ^ (y >>> 11));
y = unsigned32(y ^ ((y << 7) & 0x9d2c5680));
y = unsigned32(y ^ ((y << 15) & 0xefc60000));
y = unsigned32(y ^ (y >>> 18));
return y;
}
/* generates a random number on [0,0x7fffffff]-interval */
//c//long genrand_int31(void)
this.genrand_int31 = function ()
{
//c//return (genrand_int32()>>1);
return (this.genrand_int32()>>>1);
}
/* generates a random number on [0,1]-real-interval */
//c//double genrand_real1(void)
this.genrand_real1 = function ()
{
//c//return genrand_int32()*(1.0/4294967295.0);
return this.genrand_int32()*(1.0/4294967295.0);
/* divided by 2^32-1 */
}
/* generates a random number on [0,1)-real-interval */
//c//double genrand_real2(void)
this.genrand_real2 = function ()
{
//c//return genrand_int32()*(1.0/4294967296.0);
return this.genrand_int32()*(1.0/4294967296.0);
/* divided by 2^32 */
}
/* generates a random number on (0,1)-real-interval */
//c//double genrand_real3(void)
this.genrand_real3 = function ()
{
//c//return ((genrand_int32()) + 0.5)*(1.0/4294967296.0);
return ((this.genrand_int32()) + 0.5)*(1.0/4294967296.0);
/* divided by 2^32 */
}
/* generates a random number on [0,1) with 53-bit resolution*/
//c//double genrand_res53(void)
this.genrand_res53 = function ()
{
//c//unsigned long a=genrand_int32()>>5, b=genrand_int32()>>6;
var a=this.genrand_int32()>>>5, b=this.genrand_int32()>>>6;
return(a*67108864.0+b)*(1.0/9007199254740992.0);
}
/* These real versions are due to Isaku Wada, 2002/01/09 added */
}