Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

  7. current community

    your communities

    more stack exchange communities

    company blog
Mathematics
Meta User
Network Profile
31,339
reputation
3
36
61

Martin R

Apparently, this user prefers to keep an air of mystery about them.

849
answers
1
question
~220k
people reached
  • Germany
  • Member for 6 years, 7 months
  • 3,518 profile views
  • Last seen 48 mins ago

Communities (12)

Top Meta Posts
3
0

Top Network Posts

Top Tags (231)

Score 594
Posts 310
Posts % 36
Score 507
Posts 202
Score 407
Posts 153
Score 344
Posts 121
Score 233
Posts 34
Score 198
Posts 75
View all tags →

Top Posts (850) All Questions Answers | Votes Newest

134 Why does this matrix give the derivative of a function? Nov 22 '15
32 Taylor series for $\sqrt{x}$? Jan 16 '15
25 How to prove that adding $n$ to the numerator and denominator will move the resultant fraction close to $1$? Feb 6
25 What are the coefficients in the expansion of $(x+y)(x+2y) \cdots (x+ny)$? Nov 7 '18
17 Show that $\int_{0}^{\pi/6} {\cos (x^2)}\mathrm{d}x\ge\frac12$. Dec 10 '18
15 Pigeonhole Principle - Roulette Wheel Dec 22 '17
13 For f continuous on $[0,1]$, show that there exist points $\alpha_k$ such that $\sum \limits_{k=1}^n \frac{1}{f'(\alpha_k)} = n $ Jan 5 '15
13 Prove that $\det(A)=p_1p_2-ba={bf(a)-af(b)\over b-a}$ Oct 20 '17
12 Condition to guarantee $f=0$ on $[a,b]$ Aug 3 '15
11 Rolle's theorem $\beta \cdot f(x)+f'(x)=0$ Nov 19 '16
View all questions and answers →

Badges (100)

Gold

3

Rarest

Silver

36

Rarest

Bronze

61

Rarest

View all badges →