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MrYouMath

I do maths as hobby and i am running a youtube channel (https://www.youtube.com/user/MrYouMath) where i try to create science videos for pupils and students :D.

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Top posts (7) All Questions Answers | Votes Newest

8 Who invented the exponential ansatz for linear differential equations with constant coefficients? May 16 '16
8 Euler's first proof of $e^{ix}=\cos(x)+i\sin(x)$ Jun 14 '16
7 Who wrote down the first differential equation? Apr 11 '16
7 Who did first use the Method of Characteristics Jun 17 '16
5 Who derived $\int_{0}^{\infty} \mathrm{e}^{-x^2}\, dx = \frac{\sqrt \pi}{2}$? Jun 8 '16
3 What is the name of the identity $\frac{1}{2}\mathbf{\nabla (u \cdot u) = u \times (\nabla \times u ) + (u \cdot \nabla)u}$ and who derived it? Nov 2 '16
0 Invariance principle for stability in the sense of Lyapunov Oct 2 '17

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