如何利用导数解决函数的零点问题

页面:/news/view-469658/ | 耗时:0.6283 s | 内存:1.89 MB | 查询:4 | 缓存读取:4 写入:0 | 加载文件:23
select * from tbl_Articles WHERE ArticleID=469658 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=469658 LIMIT 0,1
select * from tbl_Articles_sphinx where id=469658 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1087499,1084259,1092113,1079952,1110027,1073503,1096068,1074542,1065393,1123835,1095960,1097505,1083946,1111448,1096527,1112841,1082962,1054388,1088906,1063867,1091177,1092225,1110606,1107687,1106232,1104941,1092129,1076541,1103895,1112642) ORDER BY field (ArticleID,1087499,1084259,1092113,1079952,1110027,1073503,1096068,1074542,1065393,1123835,1095960,1097505,1083946,1111448,1096527,1112841,1082962,1054388,1088906,1063867,1091177,1092225,1110606,1107687,1106232,1104941,1092129,1076541,1103895,1112642)