numRecipes
クラス RandomDouble
java.lang.Object
|
+--numRecipes.RandomDouble
- public class RandomDouble
- extends java.lang.Object
Ported to Java by Shigeru Yoshida for the IceCube MC.
2002.12.1
syoshida@hepburn.s.chiba-u.ac.jp
Before using, initialize the state by the constrctor RandomDouble(long)
in this Java version.
Blow is the notice of the original C source code.
-----------------------------------------------------------
A C-program for MT19937, with initialization improved 2002/2/10.
Coded by Takuji Nishimura and Makoto Matsumoto.
This is a faster version by taking Shawn Cokus's optimization,
Matthe Bellew's simplification, Isaku Wada's real version.
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.keio.ac.jp/matumoto/emt.html
email: matumoto@math.keio.ac.jp
-----------------------------------------------------------
コンストラクタの概要 |
RandomDouble(long s)
Constructor to initialize state[N] with a seed |
クラス java.lang.Object から継承したメソッド |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
N
private static final int N
- 関連項目:
- 定数フィールド値
M
private static final int M
- 関連項目:
- 定数フィールド値
MATRIX_A
private static final long MATRIX_A
- 関連項目:
- 定数フィールド値
UMASK
private static final long UMASK
- 関連項目:
- 定数フィールド値
LMASK
private static final long LMASK
- 関連項目:
- 定数フィールド値
state
private long[] state
left
private int left
initf
private int initf
selectedIndex
private int selectedIndex
RandomDouble
public RandomDouble(long s)
- Constructor to initialize state[N] with a seed
MixBits
public long MixBits(long u,
long v)
Twist
public long Twist(long u,
long v)
nextState
public void nextState()
nextDouble
public double nextDouble()
- generates a random number on (0,1)-real-interval