Dimitri Surinx

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2722
bio website dsurinx.be
location Belgium
age 24
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I am a computer science student at Hasselt University with main interest in theoretical computer science and abstract mathematics.


57 Answers

newest activity votes
13
$\dfrac{\mathrm d}{\mathrm dx}x^x=$?
12
What is the result of sum $\sum\limits_{i=0}^n 2^i$
12
Is my proof that $(A^n)^{-1} = (A^{-1})^n$ correct?
10
Is the set of all positive real numbers dense in $\mathbb{R}$
8
Graph isomorphic
7
Triangle Inequality with complex numbers: Prove that $ |z_{1} - z_{2}| \le |z_{1}| + |z_{2}| $.
6
Do there exist exponential-time problems, even if $P=NP$
5
Find $n\in \mathbb N$ so that $(\mathbb Z_n, +, \cdot)$ has exactly 4 invertible elements and 5 zero-divisors
5
What is the CFG of the language that generates all strings over alphabet $\{a, b, c\}$?
5
Differentiating the polynomial $x^3 - 4x +6$
4
The print problem: How to show it is not decidable?
4
How to guess whether a language is regular or not
3
What is the significance of the order in an ordered basis/basis?
3
If $\lim\limits_{x\to a}f(x)=0$ and $g(x)$ is bounded in a neighborhood of $a$, then $\lim\limits_{x\to a}f(x)g(x)=0$
3
The space $C_b(\mathbb{R})$ is complete
3
Basic set questions
3
Map of Cartesian Product
3
Mathematics necessary for a Master's degree in CS
2
Pumping Lemma to show that a language is not Context Free
2
What does this notation mean? F|U
2
What step am I missing in this?
2
Bag of tricks in Advanced Calculus/ Real Analysis/Complex Analysis
2
Proving a language is regular
2
How to Prove a Programming Language is Turing Complete?
2
Is there any decidable problem that is NOT NP-HARD?
2
Can't write context free grammar for language $L=\{a^n\#a^{n+2m}, n,m \geq 1\}$
2
Prove that the center of a group is a normal subgroup
2
Difference of Logarithms to form a quotient?
2
How might I refresh high school level mathematics and extend upon it much further?
2
How to add compound fractions?
1 2