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23h
asked What function is this? $\sum_{k=0}^\infty \frac{2^{2k}z^{2k-1}}{(2k)!}$
1d
asked What is the sum of this series? $\sum_{n=1}^\infty\frac{\zeta(1-n)(-1)^{n+1}}{2^{n-1}}$
1d
asked What is the sum of this series? $\sum_{n=1}^\infty\frac{2^n (-1)^{n+1} B_n}{n}$
2d
asked Non-standard numbers and exponential form of Zeta function
Aug
23
asked What happens if to introduce infinite and infinitesimel quantities this way?
Aug
23
asked Conventions adopted for extended reals
Aug
23
answered Why is there antagonism towards extended real numbers?
Aug
23
asked Is there a name for complex numbers over affinely extended reals?
Aug
18
answered Is there a formulaic way to go from $\sum_{k=1}^{n} \frac{1}{k}$ back to $n$?
Aug
15
asked What is this quantity?
Aug
13
asked Why the number of all reals is $2^{\aleph_0}$ and not ${\aleph_0}^{\aleph_0}$?
Aug
11
answered Does Gödel's incompleteness theorem contradict itself?
Jun
18
asked Example of a function that has fractional derivatives of order less than 1 but not 1
May
17
asked Can these integrals be represented in closed form?
May
17
asked Concerning Hurwitz Zeta function, how to prove the following identity?
May
6
answered Comparing infinite numbers
May
6
asked Compare density of rationals to the density of integers
Apr
25
asked What do you call the subset of all the Gaussian integers having the smallest magnitude given an argument?
Apr
25
asked Is $\sum_{k=-\infty}^{0}f(-k)=\sum_{k=0}^{\infty} f(k)$ always?
Apr
23
answered Sum of the Harmonic Series?