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reviewed Leave Closed How to study math to really understand it and have a healthy lifestyle with free time?
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reviewed Leave Closed Prove: If $p \in \mathbb{N}$, $p$ is prime and $p\mid ab$ then $p\mid a$ or $p\mid b$.
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reviewed Close If $f(X+a) = f(X-a)$ where $a$ is infinitesimally small then…
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reviewed Leave Open Square roots of Complex Number.
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reviewed Leave Open Why is $n^\sqrt n - 2^n \to - \infty$ and $\sqrt n ^n - 2^n \to +\infty$
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reviewed Leave Open How do I calculate $ \int_{-\infty}^{\infty} e^{-ax^2} \;\mathrm{d}x$ for $a>0 $
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reviewed Leave Open Existence of analytic function on a unit disc $\triangle$
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reviewed Close Is there an object in reality that is proven to be uncountable?
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reviewed Leave Open How can I calculate $\lim_{n \to \infty} (1 + \frac{1}{n!})^n$ and $\lim_{n \to \infty} (1 + \frac{1}{n!})^{n^n}$?
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reviewed Close What is the decomposition of $x^4+x^3+x^2+x+1$.
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reviewed Close Which statistics test to be used?
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reviewed Leave Open Questions about Eigenspace
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reviewed Close Prove serial representation of the integral $\int_0^1 x^x \,{\rm d}x$
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reviewed Close Prove family of function is not equicontinuous
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reviewed Leave Open How do I calculate $\lim_{n \to \infty} n^\frac{1}{n} (n+1)^\frac{1}{n+1} … (2n)^\frac{1}{2n}$
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reviewed Close Finite Fourier Transformation
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reviewed Leave Open Prove that every nearly euclidean domain is a principal ideal domain.
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reviewed Leave Open Where does the $kΔt$ go?
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comment If $f(X+a) = f(X-a)$ where $a$ is infinitesimally small then…
There is no distinction.
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comment If $f(X+a) = f(X-a)$ where $a$ is infinitesimally small then…
In fact, there exists a counterexample even when $f$ is a rectifiable curve.