½×³Ë
½×³ËµÄ¹«Ê½ ½×³Ë¹«Ê½´óÈ«
»ù±¾½×³Ë¹«Ê½£º¶ÔÓÚÈκδóÓÚ1µÄ×ÔÈ»Êýn£¬Æä½×³Ë±íʾΪ£ºn£¡ = 1 ¡Á 2 ¡Á 3 ¡Á ... ¡Á n¡£½×³ËÒ²¿ÉÒԵݹ鶨Ò壺0£¡ = 1£¬n£¡ = (n-1)£¡ ¡Á n¡£½×³ËµÄÕ¹...
½×³ËÔõô±íʾ?
ÔÚ±í´ï½×³Ëʱ£¬¾ÍʹÓá°£¡¡±À´±íʾ¡£ÈçxµÄ½×³Ë£¬¾Í±íʾΪx!È磺n!=n¡Á(n-1)¡Á(n-2)¡Á(n-3)¡Á...¡Á1¡£½×³ËµÄÁíÒ»ÖÖ±íʾ·½·¨£º(...
½×³ËµÄÖ÷Òª¹«Ê½
ÈκδóÓÚ1µÄ×ÔÈ»Êýn½×³Ë±íʾ·½·¨:¡¡¡¡n!=1¡Á2¡Á3¡Á¡¡¡Án ¡¡¡¡»ò ¡¡¡¡n!=n¡Á(n-1)!¡¡¡¡nµÄË«½×³Ë:¡¡¡¡µ±nÎªÆæÊýʱ±íʾ²»´óÓÚnµÄËùÓÐÆæÊýµÄ³Ë»ý ¡¡¡¡Èç:7...
½×³ËµÄ¹«Ê½ÓÐÄÄЩ?
½×³ËµÄÖ÷Òª¹«Ê½£º1¡¢ÈκδóÓÚ1µÄ×ÔÈ»Êýn½×³Ë±íʾ·½·¨£ºn!=1¡Á2¡Á3¡Á¡¡¡Án »ò n!=n¡Á(n-1)!2¡¢nµÄË«½×³Ë£ºµ±nÎªÆæÊýʱ±íʾ²»´óÓÚ...
³Ë½×ºÍ½×³ËµÄÇø±ð
ËùÒÔ£¬³Ë½×ºÍ½×³ËµÄÇø±ðÔÚÓÚÇó½â³Ë»ýµÄ¶ÔÏó²»Í¬¡£³Ë½×Ò»°ãÓÃÓÚ¼ÆËã¶à¸öÊýµÄ³Ë»ý£¬¶ø½×³ËÌØÖ¸ÓÉ1µ½Ä³¸öÊýµÄÁ¬ÐøÕûÊýµÄ³Ë»ý¡£³Ë½×µÄ¸ÅÄî½ÏΪ¹ã·º£¬ÊÊÓÃÓÚ¶àÖÖ³¡¾°¡£ÀýÈ磬ÔÚ...
n!Ôõô¼ÆËã - °Ù¶È¾Ñé
1 1¡¢ÈκδóÓÚ1µÄ×ÔÈ»Êýn½×³Ë±íʾ·½·¨£ºn!=1¡Á2¡Á3¡Á¡¡¡Án »òÀ´ n!=n¡Á(n-1)!2¡¢×Ôµ±nÎªÆæÊýʱ±íʾ²»´óÓÚnµÄËùÓÐÆæÊýµÄ³Ë»ý°Ù £¬µ±n...
ʲô½Ð×ö½×²ã?ÒªÓй«Ê½
½×³Ë(factorial)ÊÇ»ù˹¶Ù¡¤¿¨Âü(Christian Kramp,1760 ¨C 1826)ÓÚ1808Äê·¢Ã÷µÄÔËËã·ûºÅ.½×³Ë,Ò²ÊÇÊýѧÀïµÄÒ»ÖÖÊõÓï.½×³ËÖ¸´Ó1³ËÒÔ2³ËÒÔ3³ËÒÔ4Ò»Ö±³Ëµ½ËùÒªÇóµÄÊý.ÀýÈçËùÒªÇóµÄÊý...
½×³ËÊÇʲô?
½×ÊÇ̨½×µÄ½×£¬½×¼¦µÄ½×¡£Ò»´®Êý×Ö£¬°´¹Ì¶¨´óСµĄ̈½×µÝÔö£¬°ÑÕâЩÊý×Ö³ËÆðÀ´£¬¾ÍÊǽ׳ˡ£1¡Á2¡Á3¡Á4¡Á5£¬´Ó1¿ªÊ¼£¬Ã¿Ò»½×µÝÔö1¡£ËùÒÔ...
Çó1µ½100µÄ½×³Ë?
½×³ËÒ»°ãºÜÄѼÆË㣬ÒòΪ»ý¶¼ºÜ´ó¡£ÒÔÏÂÁгö1ÖÁ20µÄ½×³Ë£º1£¡=1£¬2£¡=2£¬3£¡=6£¬4£¡=24£¬5£¡=120£¬6£¡=720£¬7£¡=5040£¬8£¡=40320 9£¡=362880 10£¡=3628800 1...
½×³ËÊÇÈçºÎ¼ÆËãµÄ?
1¡¢½×³Ë¶¨Ò壺n!=n*(n-1)*(n-2)*¡¡*1 2¡¢¼ÆËã·½·¨£ºÕýÕûÊý½×³ËÖ¸´Ó 1 ³ËÒÔ 2 ³ËÒÔ 3 ³ËÒÔ 4 Ò»Ö±³Ëµ½ËùÒªÇóµÄÊý¡£ÀýÈçËùÒªÇóµÄÊýÊÇ 4£¬Ôò½×³ËʽÊÇ 1...