For a Sequence , if for , then is increasing for . Conversely,if for , then is Decreasing for .
If and for all , then is increasing for . Conversely, if and for all , then is decreasing for .
数学辞典收录了8975条数学词条,基本涵盖了常用数学知识及数学英语单词词组的翻译及用法,是数学学习的有利工具。