Frank Science

less info
meta site favicon meta user | stack exchange network profile network profile
1,979 reputation
220
bio website
location
age
visits member for 1 year, 3 months
seen yesterday
stats profile views 457

43 Answers

newest activity votes
0
Is there a discrete version of de l'Hôpital's rule?
8
Tricky elementary integral
1
Prove an integral limit
3
$\lim_{n\to\infty}\dfrac{1}{n}\sum_{k=0}^n\cos\dfrac{\pi k}{2n}=\dfrac{2}{\pi}$
1
If $f_n(x_n) \to f(x)$ whenever $x_n \to x$, show that $f$ is continuous
0
Asymptotic behaviour of a sequence
2
A simultaneous system of equations
3
Stieltjes Integral
0
Geometry problem
1
$f:(0,\infty)\rightarrow (0,\infty)$ is continuous, $\lim_{n\rightarrow\infty}f(nx)=0$ then $\lim_{x\rightarrow\infty}f(x)=0$
3
How to compute this limit?
1
$f:U\rightarrow \mathbb{R}$ continuous, injective- prove $f(U)$ is open.
4
Rank of matrix AB when A and B have full rank
0
Finding matrix $B$ is not zero matrix where $AB= 0$
2
The measure of $([0,1]\cap \mathbb{Q})×([0,1]\cap\mathbb{Q})$
1
Does there exist $m,a\in \mathbb{N}$ such that $m(m+1)=a^7$?
6
'Linux' math program with interactive terminal?
2
Efficient method to evaluate the following series
2
simple algebraic problem (related to graph theory)
2
Asymptotics of an expression of the root of a polynomial
2
How to evaluate $\lim\limits_{h \to 0} \frac {3^h-1} {h}=\ln3$?
2
Number of positive integer walks from 0 to b.
0
A lemma about extension of function
0
Characterization of real functions which have limit at each point
5
Show $f$ is constant if $|f(x)-f(y)|\leq (x-y)^2$.
3
Does $\lim_{h\rightarrow 0}\ [f(x+h)-f(x-h)]=0$ imply that $f$ is continuous?
2
How to evaluate $ \lim \limits_{n\to \infty} \sum \limits_ {k=1}^n \frac{k^n}{n^n}$?
3
Do I need to check solution while solving an equation?
3
Factoring by grouping: $x^4 - y^4 -4x^2 + 4$
9
$f(x)=x^n+5x^{n-1}+3$ can't be expressed as the product of two polynomials
1 2