希腊字母epsilon的两种写法ϵ，ε，一般认为哪个是原型，哪个是变 …
希腊字母epsilon的两种写法ϵ，ε，一般认为哪个是原型，哪个是变体？ 我一直以为前者是原型，因为TeX中两者分别记为\epsilon，\varepsilon 但在Microsoft Word的数学公式输入器中却将两者 …
notation - What does the letter epsilon signify in mathematics ...
This letter "$\\varepsilon$" is called epsilon right ? What does it signify in mathematics ?
analysis - What does "$\epsilon$" mean in this formula
Apr 19, 2022 · The symbol is called "epsilon," and is simply a variable, just like x x or y y. However, note that ϵ ϵ is most commonly used in analysis as an arbitrarily small (but positive) …
为什么ε在中国广泛被念做伊普西龙，然而他的发音是epsilon …
Nov 10, 2021 · 知乎，中文互联网高质量的问答社区和创作者聚集的原创内容平台，于 2011 年 1 月正式上线，以「让人们更好的分享知识、经验和见解，找到自己的解答」为品牌使命。知乎 …
notation - Backwards epsilon - Mathematics Stack Exchange
What does the $\\ni$ (backwards element of) symbol mean? It doesn't appear in the Wikipedia list of mathematical symbols, and a Google search for "backwards element of" or "backwards …
What is epsilon algebra and why is it important in Numerical …
Jun 21, 2018 · The epsilon algebra is a simple method compared to the more advanced interval arithmetic which can be used to put bounds on rounding and measurement errors in …
如何能更好地理解（ε-δ）语言极限的定义？ - 知乎
本文主要给出一个我自己思考得到的 ϵ δ 的几何模型来帮助建立这种直觉。 这个模型主要强调的不是严格性，而是着重于如何帮助理解。 1 ϵ δ 的几何模型 1.1 ϵ δ 的定义 \epsilon -\delta 极限 …
Good Explanation of Epsilon-Delta Definition of a Limit?
Nov 18, 2021 · I'm really doing my best but completely failing to understand the epsilon-delta definition of a limit. I vaguely understand it like this: Given a bound on the difference between …
notation - How to denote a very small number $\epsilon
Nov 3, 2016 · I'm adding a small number $\\epsilon$ to a denominator for numerical stability. Is it correct to introduce it as $\\epsilon \\ll 1$? In fact, it should be close to zero, not just (much) …
为什么极限的 ε-N 和 ε-δ 语言具有划时代的意义？ - 知乎
没有ε-N语言和ε-δ语言，在当时就没法 严密 刻画极限. 极限是微积分的基础，连续性、微分、积分、级数等概念都要建立在其上. 不严密定义极限，就意味着很多结论不可靠，微积分就变成了 …