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Mathematics
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mathematics-and-caffeine
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Mathematics + Caffeine = Good

“A mathematician is a device for turning coffee into theorems.” ~Erdős

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6
Prof gave us wrong definition of convexity?
May 29
4
Total differentiation, is this true: $D(Df(a))(a) = f$?
Jun 23, 2021
4
Proof for volume of n-ball with radius 1
Jan 4, 2022
4
Projection is a covering map iff the topology is discrete
Jul 19, 2023
4
Calculate $\lim_{j \rightarrow \infty} \int_0^j (1+\frac{x}{j})^j e^{-\pi x}dx$
Jan 31, 2022
3
Is this a sub-manifold? $M=\{(x,y,z)\in\mathbb{R} \,\,|\,\, xy-z^2=1, \, x+z=2\}$
Aug 3, 2021
2
Fundamental group of mapping torus: Question about proof
Jun 8, 2023
2
Conservative edgeweights, minimal path tree characterization
Mar 14, 2021
2
Residue calculus: Integrals go to zero
Jun 25, 2023
2
How to proof $\int_{(0,\infty)} \int_{(0,\infty)} |\sin x| \,\, e^{-xy} \,\, dx \,\, dy < \infty$
Dec 22, 2021