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22h
comment Doubt in raising a power to a complex number
possible duplicate of Complex towers: $i^{i^{i^{...}}}$
1d
revised regularization of sum $n \ln(n)$
formatting & latexing
2d
awarded  number-theory
Aug
25
comment Besides the $3x + 1$ problem, for which similar problems are still unresolved regarding trayectory?
I recall a comment of Gerry Myerson, saying that no nontrivial variant of the 3x+1-problem has a solution so far.(Unfortunately I didn't find that comment at the moment. Might be in mathoverflow or here in MSE in some questions tagged with "collatz")
Aug
25
revised Why is it so difficult to obtain the spectral properties related to infinite matrices, especially when they are not symmetric?
added 1479 characters in body
Aug
22
revised How to solve special type of Diophantine equation
added 126 characters in body
Aug
21
revised How to solve special type of Diophantine equation
added 42 characters in body
Aug
21
answered How to solve special type of Diophantine equation
Aug
21
comment How to solve special type of Diophantine equation
I get $ y=0 ,x=0 (0 = 0)$, $y=1 , x=0 (0 = 0)$, $y=2 , x=6 (30 = 30)$, $y=3, x=16 (240 = 240)$, $y=30, x=4930 (24299970 = 24299970)$ for $0 \le y \le 10^6$
Aug
21
revised Geometry - Trapezium and its properties
shouting in title removed, latex added in posting
Aug
17
comment repeated exponents sign
How can it be difficult to use -for instance- a big E in place for the big $\sum$ resp $\Pi $. I think in wikipedia someone has also proposed a big T (alluding to "T"etration) in place of the $\sum$ resp. $\Pi$
Aug
14
revised Algorithm for tetration to work with floating point numbers
[Edit removed during grace period]
Jul
23
revised Does the Borel-transform of the Lerch-Transcendent have a name/simple expression?
added 50 characters in body
Jul
23
revised Does the Borel-transform of the Lerch-Transcendent have a name/simple expression?
added 50 characters in body
Jul
23
asked Does the Borel-transform of the Lerch-Transcendent have a name/simple expression?
Jul
23
answered Summing Lerch Transcendents
Jul
22
revised In the definition of Carmichael number, why is it necessary to have $(b, n) = 1$?
corrected spell in the title
Jul
19
comment How to replace addition with multiplication to find the next integer value?
@siméon: hadn't just this been the point/the nerve of the couriosity of the OP?
Jul
18
comment List of divergent series and their summations
what about wikipedia? There is already a certain list. Why not extend that list?
Jul
15
revised Looking for a verification or refutation my attempted proof of why the Collatz conjecture is probably false.
added 542 characters in body