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doraemonpaul

Apparently, this user prefers to keep an air of mystery about them.

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  • Member for 9 years, 1 month
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  • Last seen Nov 30 '20 at 14:07

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40 Finding the Derivative of |x| using the Limit Definition Oct 10 '12
20 Particular solution to a Riccati equation $y' = 1 + 2y + xy^2$ Nov 25 '12
12 Solving 4th-order PDE Sep 7 '12
8 Integral $S_\ell(r) = \int_0^{\pi}\int_{\phi}^{\pi}\frac{(1+ r \cos \psi)^{\ell+1}}{(1+ r \cos \phi)^\ell} \rm d\psi \ \rm d\phi $ Nov 27 '13
8 $\mathcal{B}^{-1}_{s\to x}\{e^{as^2+bs}\}$ and $\mathcal{L}^{-1}_{s\to x}\{e^{as^2+bs}\}$ , where $a\neq0$ Jul 11 '12
8 How to find the general solution of $xy''-(2x+1)y'+x^2y=0$ when we know the general solution of $y''+2y'+xy=0$? Nov 28 '12
8 About the great result of $\int\underbrace{x^{x^{\cdot^{\cdot^x}}}}_m~dx$ Apr 6 '14
8 Stochastic Heat Equation Jul 5 '12
7 How to find the general solution of $(1+x^2)y''+2xy'-2y=0$. How to express by means of elementary functions? Dec 11 '12
7 How to solve $y(y'+3)=ax^2+bx+c, \quad a,b,c \in \mathbb{R}$ Mar 1 '13
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