duffing混沌振子的实现代码，以及绘制duffing系统分岔图的源代码，matlab程序。-duffing chaotic oscillator realization of the code, as well as the bifurcation diagram drawing duffing system source code, matlab procedures.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001285s ]
SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.076094s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001002s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001172s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001009s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003245s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000889s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003763s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014954s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001134s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 3624 [ RunTime:0.013113s ]
