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asked Is there any partial sums of harmonic series that is integer?
Feb
4
answered How do I evaluate this sum :$\sum_{n=1}^{\infty}\frac{{(-1)}^{n²}}{{(i\pi)}^{n}}$?
Jan
19
asked is this correct $\lim_{ n \to \infty} \sum_{k=2^n}^{2^{n+1}} \frac{1}{k}= \ln 2$?
Jan
14
asked Example of two analytic functions that differ at countably infinity many point
Jan
13
answered Let $f(x) = (x^n-1)/(x-1)$. Why does $f(1)=n$?
Jan
7
asked example of a function that could only be defined recursively
Dec
14
asked Alternative definition for Exponential and Logarithmic functions to prove identities (and by extension sin and cos related identities)
Dec
7
answered Divide a number to unequal parts
Nov
29
answered Proof that the number $\sqrt[3]{2}$ is irrational using Fermat's Last Theorem
Nov
29
asked Is FTC equivalent to Differentiating integrals and Integrating Differentials?
Nov
29
asked Ellipse by moving center of a parametric circle equation?
Nov
18
asked Simple examples of applications of converse, contrapositive and inverse used in mathematical proofs rather than logic.
Nov
12
asked Convergence rate for $a_{n+1}=\sqrt{2 \sqrt {a_n}}$?
Nov
9
asked Is there any kind of known pattern to $\sqrt 2$ in base 2?
Nov
8
asked Numbers similar to Ramanujan's taxi cab number
Nov
8
asked Equation of 3 circles touching each other is given, what is the equation of a circle touching all 3?
Oct
28
asked what has $\mathbb R$ as a proper subset of it's solution sets that has nothing to do with $\mathbb C$?
Oct
16
asked How to justify that due to unique factorisation $d(d + 2b) = b\times b $ where $0<d<b$ has no solution in integers?
Oct
2
asked Alternative prrof of $\sqrt 2 $ (and $\sqrt {\text {of any non square integer}}$ ) not being rational
Sep
25
asked Limit of $\sum\limits_{k=1}^n \frac{1}{2k-1}-\frac12\ln n $