Istvan Chung
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 Dec28 comment Easy example why complex numbers are cool And in particular, that $e^{\tau{}i} = 1$ Dec10 awarded Excavator Dec8 awarded Caucus Oct2 awarded Quorum Sep1 comment What could be better than base 10? Doesn't that imply that you need a potentially unbounded number of symbols to represent large numbers? If a number requires $n$ factorial digits, then you need $n$ symbols to represent the most significant digit. In a classic base $B$, you only ever need $B$ symbols. Aug31 revised Solving a logarithmic expression without a calculator clarified log base Aug31 suggested approved edit on Solving a logarithmic expression without a calculator Aug28 comment What could be better than base 10? @MJD If you want to use your hands and are allowed to distinguish between fingers on each hand, then binary is clearly optimal, allowing you to count from 0 to 1024 (half-open). Aug28 comment What could be better than base 10? Um... call me dumb, but in what base do you represent each $a_i$, considering that no constant finite base will suffice once $i!$ is greater than it? Aug24 revised If there are obvious things, why should we prove them? fixed grammar, removed gender-specific "man". Aug24 suggested approved edit on If there are obvious things, why should we prove them? Jun26 awarded Custodian Jun12 comment Mathematical research of Pokémon @JairTaylor right- that paper uses some clever Pokémon-engineering to ensure the outcome of each battle beforehand, so it doesn't really go into this :) Jun2 awarded Yearling May31 comment Are problems about finding the next term of a sequence mathematical? "I find succeeding numbers of a sequence mathematical; I understand equations, both the simple and quadratical..." (I initially mis-parsed the title, with "mathematical" modifying "sequence" :) May27 reviewed No Action Needed Limit of $\frac{\sin(xy^2)}{x^2+y^2}$ as $x\to0$ and $y\to0$ May25 comment Is this computation erroneous? @franklin 100 $\neq \infty$ May21 revised Write a second order differential equation for which y(t)= 2 cost- t is a solution and verify improve grammar; TeXify May21 reviewed No Action Needed How do I find $f(4)$ when $f(n)= f(n-1)+ 2n$? May21 reviewed No Action Needed harmonic function invariant under a rotation