这是一些数值算法的源程序，包括非线形方程的解法。(二分法，牛顿法)。线性代数方程组数值解法（包括，消去法，迭代法）-This is some numerical algorithm of the source, including non-linear equations method. (Dichotomy, Newton). Linear algebra equations Numerical Solution (including, elimination, iteration)
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001030s ]
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:0.073488s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000929s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001301s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001064s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003404s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000909s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003953s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014511s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001177s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 304285 [ RunTime:0.017730s ]
