random

random([seed])

:: Íð¿ô¤òÀ¸À®¤¹¤ë.

seed

return

¼«Á³¿ô

• ºÇÂç 2^32-1 ¤ÎÈóÉéÀ°¿ô¤ÎÍð¿ô¤òÀ¸À®¤¹¤ë.
• 0 ¤Ç¤Ê¤¤°ú¿ô¤¬¤¢¤ë»þ, ¤½¤ÎÃͤò seed ¤È¤·¤ÆÀßÄꤷ¤Æ¤«¤é, Íð¿ô¤òÀ¸À®¤¹¤ë.
• default ¤Î seed ¤Ï¸ÇÄê¤Î¤¿¤á, ¼ï¤òÀßÄꤷ¤Ê¤±¤ì¤Ð, À¸À®¤µ¤ì¤ëÍð¿ô¤Î ·ÏÎó¤Ïµ¯Æ°Ëè¤Ë°ìÄê¤Ç¤¢¤ë.
• ¾¾ËÜâÃ-À¾Â¼Âó»Î¤Ë¤è¤ë Mersenne Twister (http://www.math.keio.ac.jp/matsumoto/mt.html) ¥¢¥ë¥´¥ê¥º¥à¤Î, Èà¤é¼«¿È¤Ë¤è¤ë¼ÂÁõ¤òÍѤ¤¤Æ¤¤¤ë.
• ¼þ´ü¤Ï 2^19937-1 ¤ÈÈó¾ï¤ËŤ¤.
• mt_save ¤Ë¤è¤ê state ¤ò¥Õ¥¡¥¤¥ë¤Ë save ¤Ç¤­¤ë. ¤³¤ì¤ò mt_load ¤ÇÆɤ߹þ¤à¤³¤È¤Ë¤è¤ê, °Û¤ë Asir ¥»¥Ã¥·¥ç¥ó´Ö¤Ç°ì¤Ä¤ÎÍð¿ô¤Î·ÏÎó¤òé¤ë¤³¤È¤¬ ¤Ç¤­¤ë.

»²¾È

section lrandom, section mt_save, mt_load.

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