1,642 reputation
824
bio website
location United Kingdom
age 34
visits member for 2 years, 7 months
seen 4 hours ago

I am a mathematics enthusiast, although I have no formal training. What I know is what I've been able to glean from searching Wikipedia.

I enjoy writing computer programs, although I have never been employed as a programmer. I've used two-dozen different programming languages, but my current favourite is Haskell.

I also have an interest in various areas of science.

On top of all that, I'm also a bad musician, a mediocre dancer, and a very bad juggler. :-P


Nov
25
comment Uniform vs variable geometries
Cool. Well, I've certainly learned some things tonight. If you could summarise this information as an answer, I think it essentially covers what I was asking about...
Nov
25
comment Uniform vs variable geometries
Interesting. A cylinder has zero curvature everywhere, but doesn't appear to have the property of all directions being "the same"; if I travel around the radius, I quickly return to where I started, but if I travel along the other axis, I can travel forever without ever arriving back where I started...
Nov
25
comment Uniform vs variable geometries
I take it the three geometries above are not the only ones having this property then?
Nov
25
comment Uniform vs variable geometries
@RandyE Yeah, I thought that might be the term. However, the Wikipedia article starts talking about "automorphism groups" and other such exotic terms. Also, it claims that the surface of a torus is considered homogeneous - while I would have thought that (for example) the inner edge of a torus is more sharply curved than the outer edge...
Nov
25
comment Spherical geometry vs elliptic geometry
@ThomasAndrews Is that really the only difference? (A guess a small change in the axioms probably makes a big difference to the consequences...) And if so, care to make that into an answer?
Nov
25
asked Uniform vs variable geometries
Nov
25
asked Spherical geometry vs elliptic geometry
Oct
8
awarded  Good Answer
Oct
4
awarded  Nice Answer
Oct
3
answered What's the inverse operation of exponents?
Sep
24
awarded  Autobiographer
Jul
2
awarded  Curious
Jun
20
revised Alternative to sin and cos
added 540 characters in body
Jun
20
asked Alternative to sin and cos
Apr
25
awarded  Yearling
Mar
29
awarded  Nice Question
Mar
25
awarded  Notable Question
Mar
4
awarded  Notable Question
Feb
5
comment Iteratively solving multiple constraints
@FooBarrigno Certainly supervised learning is notorious for getting "stuck" in local optima...
Feb
5
comment Solution of an algebraic equation
I asked Wolfram|Alpha for a solution at $a=\frac12$. The answer it gave me was closed-form, but it looked completely insane. (I.e., far too wide to fit the whole solution on one line of text.)