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Aug
10
comment nth convolved Fibonacci numbers of order 6 modulo m
@devanshdalal: I added some more detail.
Aug
10
revised nth convolved Fibonacci numbers of order 6 modulo m
added 363 characters in body
Aug
10
comment probability of throwing at least four dice until get a 6
Your first sentence is correct. Your second sentence is almost correct (just don't get $1-p$ and $p-1$ mixed up!)
Aug
10
answered probability of throwing at least four dice until get a 6
Aug
10
revised nth convolved Fibonacci numbers of order 6 modulo m
added 50 characters in body
Aug
10
answered nth convolved Fibonacci numbers of order 6 modulo m
Aug
10
revised Unusual behavior of 210 and 199 regarding prime numbers
added 3 characters in body
Aug
10
comment Unusual behavior of 210 and 199 regarding prime numbers
@GerryMyerson: Actually there are 25- and 26-long progressions on that page; I just didn't notice them when I was writing this answer...
Aug
9
answered Unusual behavior of 210 and 199 regarding prime numbers
Aug
9
reviewed Reopen The range of an increasing computable function relation is recursive
Aug
8
revised determine a and b so that the function is continuous
spelling
Aug
7
comment What is the Riemann surface of $y=\sqrt{z+z^2+z^4+\cdots +z^{2^n}+\cdots}$?
Zeroes of the partial sum need not pass to the limit (e.g., the Taylor polynomials for $e^z$ have lots of zeroes!). I don't have anything like a proof of this, but I have a sneaking suspicion that there are only two branch points ($z=0$ and the negative real one).
Aug
7
comment What is the Riemann surface of $y=\sqrt{z+z^2+z^4+\cdots +z^{2^n}+\cdots}$?
The series cannot converge for any $z$ with $|z|=1$, as its terms don't go to zero. If $z$ represents some irrational rotation, that simply means that it diverges by oscillation instead of diverging to infinity...
Aug
7
reviewed Reopen What is meant by gluing two metric spaces together?
Aug
3
revised If $f( \cos^2(x) ) = \cos^2(x)$ can I assume that $f(x) = x$?
edited body
Aug
3
comment In calculus, which questions can the naive ask that the learned cannot answer?
Plus it's easy to motivate consideration of $\gamma$ -- and even prove its existence -- by looking at $\ln n$ as an integral. (+1)
Aug
3
answered If $f( \cos^2(x) ) = \cos^2(x)$ can I assume that $f(x) = x$?
Jul
31
awarded  Nice Answer
Jul
31
reviewed Approve suggested edit on Counting the Number of Combinations Conditionally
Jul
31
reviewed Reopen Non-normal covering space of a Klein bottle