Mathematics
s.harp's user avatar
s.harp's user avatar
s.harp's user avatar
s.harp
  • Member for 9 years, 6 months
  • Last seen this week
  • Germany
Profile Activity
Stats
21,684
reputation
228k
reached
526
answers
105
questions
Communities
View all
About

Symmetrical equations are good in their place, but 'vector' is a useless survival, or offshoot from quaternions, and has never been of the slightest use to any creature.

Lord Kelvin in a letter to G.F. FitzGerald, 1896

Badges
View all badges
4
gold badges
31
silver badges
71
bronze badges
Top tags
View all tags
735
Score
455
Posts
72
Posts %
176
Score
118
Posts
19
Posts %
121
Score
84
Posts
13
Posts %
112
Score
84
Posts
13
Posts %
112
Score
42
Posts
7
Posts %
107
Score
54
Posts
9
Posts %
Top posts
View all questions and answers
All Questions Answers
Score Newest
question
57
What knot is this?
Jan 25, 2017
question
40
Is this function nowhere analytic?
Feb 22, 2016
answer
37
Function that is the sum of all of its derivatives
Feb 6, 2016
answer
24
Show that an open linear map between normed spaces is surjective.
Jan 17, 2017
question
24
Is the convex hull of a compact set compact?
Nov 16, 2016
answer
24
Is the convex hull of a compact set compact?
Nov 16, 2016
question
23
When is the image of a proper map closed?
Jan 8, 2016
question
19
What kind of a property implies (sequentially compact $\iff$ compact)?
Jun 12, 2017
question
18
Do there exist numbers normal in every base except for one?
Sep 25, 2016
question
15
Can (linear) differential equations of infinite order be recast into equations of first order?
Aug 6, 2016
Top Meta posts
3
0
14
An old "list question" edited to include other points
4
Edit summaries/revision history cannot handle MathJax properly
Top network posts
View all network posts
12
Possible isometry groups of open manifolds
8
Strange use of complex analysis in Weinberg QFT 1?

Your privacy

By clicking “Accept all cookies”, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy.