摘要
指出α为β的高阶无穷小不等价于β为α的低阶无穷小,并证明了无限个无穷小量的和或者乘积如果存在一定是无穷小量.
The fact that α is the infinitesimal of higher order of β was not equivalent to β is theinfinitesimal of lower order of α was pointed. Furthermore, it was proved that the sum or product ofinfinite infinitesimal must be infinitesimal if they existed.
出处
《上海工程技术大学学报》
CAS
2013年第3期275-277,共3页
Journal of Shanghai University of Engineering Science
关键词
无穷小量
微积分
无穷小的比较
infinitesimal
calculus
infinitesimal comparison
