Hagen von Eitzen

less info
meta site favicon meta user | stack exchange network profile network profile
47,391 reputation
23595
bio website von-eitzen.de/math/tntrep.xml
location Bonn, Germany
age 47
visits member for 9 months
seen 1 hour ago
stats profile views 3,655

I did study math and had a knack for it, but I am sooo out of that business now ...


1,935 Answers

newest activity votes
2
Are sets always represented by upper case letters? — and understanding a bit about equivalance relations
feb 26 at 22:40
2
Can we have a matrix whose elements are other matrices as well as other things similar to sets?
feb 26 at 21:48
2
Vector-space almoast linear function
feb 26 at 20:45
2
where is error in my calculation?
feb 26 at 20:30
2
Is every free sequence discrete?
feb 26 at 7:36
2
Dedekind cuts help
feb 25 at 22:06
2
Formula of $\bigcap X$ when $X$ is a class
feb 25 at 21:57
2
Defining the measure of angles
feb 23 at 20:26
2
If $f: \mathbb R \to \mathbb R$ is differentiable, and $|f'(x)| < 1$ for all $x$, is $f$ a contraction?
feb 23 at 17:56
2
Mean value theorem $f'(c)$ question
feb 23 at 17:06
2
How many conjugates of a p-cycle?
feb 23 at 14:58
2
Arrange the computation of $f(x)$ so that the loss of significant figures can be reduced using $4$-digit decimal arithmetic
feb 23 at 12:11
2
Integrate $\iint_D\exp\{\min(x^2, y^2)\}\mathrm{d}x\mathrm{d}y$
feb 23 at 11:23
2
Which one is the right definition of eigenvalues for a differential operator?
feb 22 at 14:24
2
Hausdorff and diagonal
feb 21 at 22:57
2
Rolle's theorem and mean value theorem 2 questions
feb 21 at 21:49
2
How many complex numbers $z=x+iy$ are there such that $x+y=1$ and $e^{i(x^2+y^2)}=1.$
feb 21 at 17:46
2
How to translate the following to predicate logic language?
feb 21 at 17:43
2
Find all positive integers $n$ that have two prime factors, and such that $n$ has three times fewer divisors than $n^2$
feb 21 at 17:01
2
Can any mathematical relation be called an 'operator'?
feb 20 at 19:52
2
Find the value of the following expression
feb 20 at 18:31
2
Representing a bounded open set as the union of a sequence of non-overlapping intervals
feb 20 at 16:17
2
a problem in elementary number theory basis
feb 20 at 12:21
2
Twos complement notation question?
feb 19 at 22:42
2
discrete exponential calculating
feb 19 at 21:47
2
Topologies on a 3 point space
feb 19 at 7:27
2
Hensel Lifting and solving with mods
feb 18 at 22:39
2
Appearance of Formal Derivative in Algebra
feb 18 at 21:24
2
Convex sets proof
feb 18 at 18:25
2
Integer Factoring Algorithm Speeds
feb 17 at 16:18
1 … 23 24 25 26 27 … 65