Mathematics
brainjam
  • Member for 11 years, 5 months
  • Last seen this week
Profile Activity
Stats
5,981
reputation
53k
reached
166
answers
16
questions
top 5% overall
Communities
View all
About

mainly geometry -- euclidean, hyperbolic, projective, conformal, computational.

My gravatar image is a hyperbolic symmetry

Badges
View all badges
1
gold badge
14
silver badges
32
bronze badges
Top tags
View all tags
215
Score
119
Posts
65
Posts %
76
Score
42
Posts
23
Posts %
75
Score
44
Posts
24
Posts %
71
Score
59
Posts
32
Posts %
43
Score
16
Posts
9
Posts %
26
Score
10
Posts
5
Posts %
Top posts
View all questions and answers
All Questions Answers
Votes Newest
21
Does there exist a circle with EXACTLY two rational points, no more, no less?
Jan 7 '21
7
For a recursion based on $x+y+z+2\sqrt{xy+yz+zx},$ does what happens in $\mathbb Z\left[\sqrt n\right]$ stay in $\mathbb Z\left[\sqrt n\right]$?
Dec 17 '20
7
Show that the locus of a point in this geometric construction is a conic
Oct 27 '21
6
Is there a geometric construction that finds the intersection of two conics, given only five points on each?
Aug 7 '19
6
Is there a name or a reference for these aperiodic rhomboidal tilings?
May 17 '18
6
Convexifying a Concave Polygon by Reflections
Nov 21 '21
5
An ellipse inside a heptagon
Mar 23 '21
5
Is there an explanation for the patterns formed by the binomial coefficients $\binom{n+d-1}{d}\pmod{512}$?
Sep 22 '10
5
Polygonal billiards and uniform distribution
Oct 4 '10
5
Let $A=(-1,0),B=(1,0), C$ be points in $\mathbb{R}^2.$ What is the locus of points $\{s\in\mathbb{R}^2:C$ lies on the angle bisector of $AsB$}?
Feb 7 '21
Top network posts
View all network posts
141
Best way to detect that HTML5 <canvas> is not supported
119
valueOf() vs. toString() in Javascript
98
Calculating the angle between two lines without having to calculate the slope? (Java)
78
javascript function leading bang ! syntax
70
Why write <script type="text/javascript"> when the mime type is set by the server?

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.