天气预报15天查询> 其他> 高阶无穷大的概念是什么

高阶无穷大的概念是什么

更新时间: 2020-09-27 00:00:00     

比如两个变量a和b,a,b同时趋向无穷大时,如果a变化的速度更快,则a是b的更高阶无穷大。如:比较x²和x当x趋于无穷大时显然x²更快一些,所以x²是x的更高阶无穷大,常用的方法一般用比a和b同时趋于无穷大时,a为更高阶无穷大。

关键词: 无穷大 概念 什么

如有意见、反馈、侵权或投诉等情况,请联系:

电话:
邮箱:

我们将会在48小时内给与处理!

版权所有 Copyright ? 2009-2020 tianqiyubao3.com

页面:/news/view-122052/ | 耗时:0.3111 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=122052 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=122052 LIMIT 0,1
select * from tbl_Articles_sphinx where id=122052 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1115699,1068880,2972149,1111604,1073385,981848,1110732,1107567,1066704,1073528,1086376,1096995,1101911,1074409,1052739,1121528,1045659,1076764,1112114,1108976,1049062,1345992,3279568,1049946,1103435,1075881,1117207,1084873,1102076,1106136) ORDER BY field (ArticleID,1115699,1068880,2972149,1111604,1073385,981848,1110732,1107567,1066704,1073528,1086376,1096995,1101911,1074409,1052739,1121528,1045659,1076764,1112114,1108976,1049062,1345992,3279568,1049946,1103435,1075881,1117207,1084873,1102076,1106136)