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  1. A short proof that if $f$ is continuous then $f^ {-1}$ continuous

    Nov 9, 2024 · I learned a theorem that if $f$ is continuous and bijective then $f^ {-1}$ is continuous. I went online to search for a proof and saw a really long proof in this link.

  2. What's the difference between continuous and piecewise …

    Oct 15, 2016 · A continuous function is a function where the limit exists everywhere, and the function at those points is defined to be the same as the limit. I was looking at the image of a …

  3. calculus - Does uniformly continuous functions apply to …

    Nov 22, 2025 · Please provide additional context, which ideally explains why the question is relevant to you and our community. Some forms of context include: background and …

  4. Is a bounded and continuous function uniformly continuous?

    Apr 25, 2017 · This function is continuous on $ [-1,1]$, so it is uniformly continuous there. A fortiori on $ (-1,1)$.

  5. Proof of Continuous compounding formula - Mathematics Stack …

    12 Following is the formula to calculate continuous compounding A = P e^(RT) Continuous Compound Interest Formula where, P = principal amount (initial investment) r = annual interest …

  6. What is a continuous extension? - Mathematics Stack Exchange

    To find examples and explanations on the internet at the elementary calculus level, try googling the phrase "continuous extension" (or variations of it, such as "extension by continuity") …

  7. Proof that $f (x) = x^3$ is continuous? - Mathematics Stack …

    Aug 1, 2017 · @user8469759 My goal isn't to prove that x^3 is continuous efficiently, but to prove it using epsilon-delta as practice.

  8. Difference between continuity and uniform continuity

    Jan 27, 2014 · To understand the difference between continuity and uniform continuity, it is useful to think of a particular example of a function that's continuous on R but not uniformly …

  9. If $f,g$ are continuous functions, then $fg$ is continuous?

    Oct 29, 2017 · I believe it follows from the fact that we showed $f+g$ is continuous whenever $f$ and $g$ are continuous. Indeed, if $g$ is continuous, then $-g$ is clearly continuous.

  10. Show that the function $f (x, y)$ = $xy$ is continuous.

    Feb 22, 2015 · The projection $ (x,y)\mapsto x$ is a linear transformation and in finite dimensional space $\Bbb R^2$ it's continuous. The same for the second projection and you know the rest …