这里实现了一个最优化控制的算法，牛顿梯度法的源代码，运行于matlab平台下。-here to achieve optimization of a control algorithm, Newton gradient of the source code, which runs on Matlab platforms.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002108s ]
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:0.086900s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002298s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001946s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002164s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003711s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001838s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003301s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014859s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002528s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 31472 [ RunTime:0.001500s ]
