左極限的意思、翻譯和例句

是什麼意思

「左極限」是數學分析中的一個概念,主要用於描述一個函數在某一點的左側(即小於該點的值)趨近於某個特定值的情況。具體來說,對於一個函數 f(x),在 x=a 的左極限是指當 x 趨近於 a 時,f(x) 的值趨近於某個數 L,記作: lim(x→a-) f(x) = L。 左極限的概念在微積分和數學分析中非常重要,特別是在研究函數的連續性、可導性和極值時。

依照不同程度的英文解釋

  1. A way to find what happens to a function from the left side.
  2. Looking at values close to a point from the left.
  3. Finding the value a function approaches from the left.
  4. The limit of a function as it approaches a point from the left side.
  5. A specific value that a function gets closer to as you approach from the left.
  6. The behavior of a function as the input approaches a certain value from the left.
  7. A mathematical concept that describes the tendency of a function as the input approaches from the left.
  8. The value that a function approaches when the input approaches from the left side.
  9. The left-hand limit of a function as the variable approaches a point from the left.
  10. The limit of a function as the variable approaches a specific value from the left side.

相關英文單字或片語的差別與用法

1:Left-hand limit

用法:

這個術語通常用於數學和微積分中,指的是當一個變數從某個值的左側逐漸接近時,函數的值所趨近的數字。這在研究函數的連續性和可導性時非常重要。

例句及翻譯:

例句 1:

在計算左極限時,我們考慮的是 x 從 a 的左側接近。

When calculating the left-hand limit, we consider x approaching a from the left.

例句 2:

這個函數在 x=2 的左極限是 3。

The left-hand limit of this function at x=2 is 3.

例句 3:

為了確定函數的連續性,我們需要檢查左極限和右極限。

To determine the continuity of the function, we need to check the left-hand limit and the right-hand limit.

2:Limit from the left

用法:

這個表達方式強調了從某一點的左側來計算極限的過程。它通常用於討論函數的行為,尤其是在某些點的連續性和可導性。

例句及翻譯:

例句 1:

計算 x=1 的左側極限時,我們會觀察 x 接近 1 的過程。

When calculating the limit from the left at x=1, we observe the process of x approaching 1.

例句 2:

函數的左側極限必須與右側極限相同,才能在該點連續。

The limit from the left of the function must equal the limit from the right for it to be continuous at that point.

例句 3:

在這個例子中,左側極限和右側極限都存在且相等。

In this example, both the left-hand limit and the right-hand limit exist and are equal.