Dominic Michaelis
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15,197
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 32 Critiques on proof showing $\sqrt{12}$ is irrational. 22 Find $\lim\limits_{n \rightarrow \infty}\dfrac{\sin 1+2\sin \frac{1}{2}+\cdots+n\sin \frac{1}{n}}{n}$ 22 Could I be using proof by contradiction too much? 19 How to determine the exact value of $\sin(585^\circ)$? 16 The series $\sum_{n=1}^{+\infty}\frac{1}{1^2+2^2+\cdots+n^2}.$

### Reputation (15,197)

 +10 Finding the limit of a matrix and showing if it exists +10 What is the meaning of log(0,1)[x] in Mathematica 9.0? +5 Outer measure discontinuous from below +10 $GL_n(\mathbb{R})$ is the union of two path connected subsets (Michael Artin's Algebra).

### Questions (12)

 183 Nice examples of groups which are not obviously groups 26 Is every function with the intermediate value property a derivative? 25 Showing a filter on the Power set of $\mathbb{Z}$ is a one point Filter 17 Does $\sin(x)=y$ have a solution in $\mathbb{Q}$ beside $x=y=0$ 8 Topological way to show , if $X$ finite than there is no bijection to $X\setminus{x}$ while $x\in X$

### Tags (151)

 232 calculus × 81 106 complex-analysis × 47 222 real-analysis × 90 104 matrices × 37 165 linear-algebra × 69 79 proof-writing × 13 130 sequences-and-series × 49 66 algebra-precalculus × 21 120 limits × 35 64 analysis × 21

### Accounts (5)

 Mathematics 15,197 rep 42760 TeX - LaTeX 331 rep 113 Mathematica 322 rep 210 MathOverflow 150 rep 112 German Language 101 rep 1