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Nov
3
revised Is there a whole number $x\in\mathbb{Z}$ with $x\neq 0$ s.t. $\exp(x)$ is natural?
Forgot to excluse the 0.
Nov
3
asked Is there a whole number $x\in\mathbb{Z}$ with $x\neq 0$ s.t. $\exp(x)$ is natural?
Nov
2
comment Prove that $x_{n+1}=\frac{x_n}{2}+\frac{1}{x_n}\geq\sqrt{2}$
@Dr.MV Yeah pretty similiar to my explained approach in the first part of my post. I was just wondering about the other approach and its correctness there.
Nov
2
asked Prove that $x_{n+1}=\frac{x_n}{2}+\frac{1}{x_n}\geq\sqrt{2}$
Oct
1
comment Prove $\sum_{k=0}^n\binom{2n+1}{2k}=4^n$
This proof definitely is as short as requested but easy to grasp nonetheless!
Oct
1
accepted Prove $\sum_{k=0}^n\binom{2n+1}{2k}=4^n$
Oct
1
asked Prove $\sum_{k=0}^n\binom{2n+1}{2k}=4^n$
Sep
30
revised Find a function $g(x,y)$ that satisfies the following conditions
fixed LaTeX formatting
Sep
30
suggested approved edit on Find a function $g(x,y)$ that satisfies the following conditions
Sep
30
revised Find a function $g(x,y)$ that satisfies the following conditions
added LaTeX formatting
Sep
30
answered Find a function $g(x,y)$ that satisfies the following conditions
Sep
30
suggested approved edit on Find a function $g(x,y)$ that satisfies the following conditions
Sep
29
accepted Differentiation with respect to integral boundary
Sep
29
accepted Properties of shortest walks and simple paths during optimization
Sep
23
accepted Solving ODE $\dot{x}=\lambda x-b$
Sep
23
asked Solving ODE $\dot{x}=\lambda x-b$
Sep
23
comment Is there a subset of a non regular language that is regular
@piperchester This comment is very old and it seems I deleted the file from my Dropbox - luckily I have an updated version. You will find the mentioned overview of languages on the last page of my cheatsheet.
Sep
15
awarded  Popular Question
Sep
1
awarded  Popular Question
Jul
2
awarded  Yearling