Program to plot x(t) =1/2+∑_(n=1)^∞▒ (sinc 〖n/2〗 〖 cos 〗 〖2πnt/4〗 )
Include n-value (Number of Terms) in graph on plot.
Show 2 graphs, original and simulated together.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001042s ]
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:0.062386s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001025s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001193s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001005s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003123s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000829s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003862s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.013894s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001094s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 354134 [ RunTime:0.014454s ]
