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May
3
asked Can there be a numerical system in which logarithms can be expressed in terms of exponents in closed form?
Mar
14
asked Classifying countable sets of weighted dots on a real line.
Feb
14
answered What is $0^{i}$?
Dec
7
answered Zero divided by zero must be equal to zero
Nov
9
answered square root of two is 1.41…, can we evaluate infinite(th) root of 2?
Nov
7
answered Is term “real number” equivalent to “group of algorithms generating stream of digits”?
Nov
7
answered a Function with several periods
Nov
3
asked Interpreting infinite integer lattice as a manifold of negative dimension
Oct
16
answered Is there a metric in which 1+2+3+4+… converges to -1/12?
Sep
9
asked How to sum up this series? $\sum_{n=1}^\infty\frac{(-1)^{n-1} B_n}{n}$
Sep
9
answered Why does $1+2+3+\cdots = -\frac{1}{12}$?
Sep
9
asked Series expansions of trigonometric functions using cosecant numbers
Aug
29
asked What function is this? $\sum_{k=0}^\infty \frac{2^{2k}z^{2k-1}}{(2k)!}$
Aug
29
asked What is the sum of this series? $\sum_{n=1}^\infty\frac{\zeta(1-n)(-1)^{n+1}}{2^{n-1}}$
Aug
29
asked What is the sum of this series? $\sum_{n=1}^\infty\frac{2^n (-1)^{n+1} B_n}{n}$
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 $n$?