Jineon Baek
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 Jun 12 comment Mathematical (or physical) formulation of life @DejanGovc I knew the title, but didn't know of its content! Thanks for pointing me out the book. Jun 12 comment Mathematical (or physical) formulation of life @SimonMarkett However I think it is not easy to describe how the life is emerged with the game of life. The patterns are designed carefully, and it seems hard to make them spontaneously from some initial state. Jun 12 revised Mathematical (or physical) formulation of life added 269 characters in body Jun 12 comment Mathematical (or physical) formulation of life @SimonMarkett Yes, I heard of it before. I think the game of life partially answers the question. It has simple rules and various patterns emerging from the rules, some even reproducing another patterns! Jun 12 comment Mathematical (or physical) formulation of life Should I delete this question or change this to a community wiki? I'm new to this site so any corrections are welcome. Jun 12 asked Mathematical (or physical) formulation of life Sep 20 comment Project Euler Problem 338 Sorry if it's not much related to the question. But I'm curious if we could prove that dividing into two staircases is the only way of forming another rectangle. How can we do this? Sep 20 comment What is the smallest number of $45^\circ-60^\circ-75^\circ$ triangles that a square can be divided into? @Peter I think 45-60-75 means that the triangle has 45, 60, 75 as its angles (in degree). Sep 15 comment What is the smallest number of $45^\circ-60^\circ-75^\circ$ triangles that a square can be divided into? @Ed Pegg How did Laczkovich packed the square with triangles? I'm very curious :D Sep 11 comment Integer solutions to $(a_1+a_2+\cdots+a_n)^n=a_1a_2\cdots a_n$? $(a_1+...+a_n)^n \geq (a_1)(a_2)\cdots(a_n)=a_1\cdot \cdots \cdot a_n$ The equality only holds iff $a_1 = \cdots = a_n = 0$ Sep 4 awarded Enthusiast Aug 25 accepted Does a 'universal' group/ring/field/topology/etc. exist? Aug 25 comment Does a 'universal' group/ring/field/topology/etc. exist? @Miha Yes. If anything makes you incomprehensible feel free to modify my question to make it easier to understand. Aug 25 comment Does a 'universal' group/ring/field/topology/etc. exist? @Ilmari Karonen Thanks for grammar correction! I'm still a novice in English so it helps me a lot. Aug 25 asked Does a 'universal' group/ring/field/topology/etc. exist? Aug 23 comment A separable locally compact metric space is compact iff all of its homeomorphic metric spaces are bounded Thanks for all who considered my question! Aug 23 accepted A separable locally compact metric space is compact iff all of its homeomorphic metric spaces are bounded Aug 22 awarded Nice Question Aug 21 awarded Critic Aug 21 comment A separable locally compact metric space is compact iff all of its homeomorphic metric spaces are bounded He and I only took elementary topology, so the claim might become very trivial when one goes into deeper mathematics. If it is so, please tell us which theory can be employed. Thanks!