常识“演段”是什么意思，起源、典故、生平简介及释义-历史文化

网站首页词典首页

常识	演段
释义	演段算学术语。（1）推导方程的几何方法。刘益《议古根源》通过平面图形的分割拼补寻找等量关系，求得方程各项系数。因推演中常将各种量表示成一段段条形面积，故名。亦称为条段法。李冶《益古演段》中的“旧术”（指蒋周所用之法）即以条段求之。（2）用天元术建立方程的方法。盖“演立天元”中常将天元多项式称为一段或数段，故名。
随便看	余勾股求容积法余华余发县余吾县余吾水余善余国柱余夫余姚二相余姚县余子余子俊余子啬夫余存惠先生年谱余孝顷余寅余尧臣余山遗书余庆长官司余延寿余引余德甫集余怀余无之戎余既成 be as good as her word be as good as his word be as good as my word be as good as new be as good as one's word be as good as (one's) word be as good as our word be as good as their word be as good as word be as good as your word 石膏山祆神楼抱腹岩水涛沟朱家凹大罗宫龙脊岭天峻山栖贤谷介休市绵山风景名胜区巴西有什么好玩的景点加拿大千岛群岛旅游简介加拿大多伦多有什么旅游景点加拿大旅游签证指南如何申请加拿大旅游签证渥太华旅游线路简介渥太华购物指南加拿大首都温哥华好玩么加拿大旅游景点有哪些渥太华有哪些著名而且好玩的景点泡米粉资溪酒卤鸡资溪炒粉柴把肉大觉山珍蒿子粑粑炒码粉常德津市牛肉粉常德北堤麻辣肉牛肉粉

青年旅行网历史文化收录239286条历史文化词条，基本涵盖了全部常历史文化常识的释义详解，是旅游及文史学习的有利工具。