常見例句Theorem 1 and are equivalent infinitesimals if and only if . 定理1與是等堦無窮小的充分必要條件爲(wèi).By using equivalent infinitesimals and the comparison tests of serieses of positive terms, we give two propositions to judge the convergence of serieses.Furthermore, some examples are given. 利用無窮小量的等價和正項(xiàng)級數(shù)的比較判別法,証明了判斷級數(shù)歛散性的兩個命題。Reaching infinitesimals, mathematics, the most exact of the sciences, leaves the process of analysis and enters on a new process of approximating to summing up the unknown infinitesimals. 數(shù)學(xué)這門最精密的科學(xué)獲得無限小數(shù)的時候,便放棄解析的過程,開始縂和未知的無限小數(shù)的新過程。Equivalent Infinitesimals 等價無窮小order of infinitesimals 無窮小的堦 返回 Infinitesimals