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  1. Continuous vs Discrete Variables - Mathematics Stack Exchange

    2025年12月14日 · Both discrete and continuous variables generally do have changing values—and a discrete variable can vary continuously with time. I am quite aware that discrete variables are those …

  2. 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 rate (as a …

  3. Continuous group actions - Mathematics Stack Exchange

    2025年12月18日 · I was recently going through General Topology by N. Bourbaki, and found the following definition of topological groups acting continuously on topological spaces (slightly …

  4. real analysis - Are Continuous Functions Always Differentiable ...

    2010年10月26日 · An interesting fact is that most (i.e. a co-meager set of) continuous functions are nowhere differentiable. The proof is a consequence of the Baire Category theorem and can be found …

  5. Showing that $\arctan$ is continuous - Mathematics Stack Exchange

    2016年1月5日 · As such, $\arctan$ is continuous. If you define $\arctan$ by integrals or power series the result is immediate (the first by the Lipshitz continuity of the indefinite integral and the second from …

  6. real analysis - Why are the rational numbers not continuous ...

    2022年4月3日 · So you can have continuous functions defined over rationals; but the rationals are not a continuum. Why not? The notion of a continuum has its roots in geometry, and -- in the barest …

  7. Meaning of the continuous spectrum and the residual spectrum

    2017年1月8日 · The reason one refers to this as "continuous spectrum" Historically had nothing to do with continuity; such spectrum was found to fill a continuum, rather than being discrete.

  8. Can a function have partial derivatives, be continuous but not be ...

    2020年9月18日 · By differentiability theorem if partial derivatives exist and are continuous in a neighborhood of the point then (i.e. sufficient condition) the function is differentiable at that point.

  9. What is a continuous stochastic process? - Mathematics Stack Exchange

    2022年8月4日 · Isn't this violating the definition of continuous stochastic process or is it that I have to keep $\omega$ constant throught out the process ? Also, is $\omega$ in the definition of continuous …

  10. Why is the Spectrum of an Operator Used as the Domain in Continuous ...

    2023年11月28日 · I'm currently working to grasp the concepts of (continuous) functional calculus, aiming to prove the spectral theorem for bounded self-adjoint operators as outlined in "Introduction to …