Stack Exchange Network

Stack Exchange network consists of 174 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
History of Science and Mathematics Beta
Meta User
Network Profile
1,798
reputation
6
13

KCd

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

27
answers
9
questions
~13k
people reached
  • Member for 3 years, 11 months
  • 187 profile views
  • Last seen 23 mins ago

Communities (11)

Top Network Posts

Top Tags (28)

Score 63
Posts 21
Posts % 58
Score 25
Posts 8
Score 21
Posts 4
Score 21
Posts 4
Score 19
Posts 5
Score 14
Posts 4
View all tags →

Top Posts (36) All Questions Answers | Votes Newest

13 A basic mistake by Cayley Nov 12 '17
11 Notation for Christoffel symbols Nov 18
10 How were derivatives of trigonometric functions first discovered? Dec 6 '15
9 Who first introduced the notation $\mathcal{O}$ in algebraic geometry or algebraic number theory Oct 15 '15
9 Apparently different objects discovered to be the same Jan 22 '15
8 Riemann's moduli and Dedekind's modules: any connection? May 12
7 Jacobi's product for the discriminant Jul 25 '16
7 What is the original source for Gelfand's problem on leading digits of the powers of 2? Feb 26 '16
7 Who discovered the topological proof of Nielsen-Schreier theorem? Dec 16 '15
7 Considered a breakthrough at its time – almost forgotten nowadays Jan 23 '15
View all questions and answers →

Badges (19)

Gold

—

Silver

6

Rarest

Bronze

13

Rarest

View all badges →