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May
10
awarded  Custodian
May
10
reviewed Edit Which number is larger and Why? 1.7 or 1.73205
May
10
revised Which number is larger and Why? 1.7 or 1.73205
fixed symbol
Feb
5
comment Why is a circle 1-dimensional?
it's talking about the parameters needed to specify a point on the circle. [...] That's different from what's needed to describe a circle itself. A circle spans two dimensions, but a single point on it can be described with a single value. Cleared it up for me!
Dec
20
awarded  Constituent
Dec
16
awarded  Caucus
Oct
29
comment What's the parametric equation for the general form of an ellipse rotated by any amount?
+1 love your pedagogy (clear, step-by-step workout)!
Oct
27
revised What's the parametric equation for the general form of an ellipse rotated by any amount?
fixed title
Oct
27
suggested approved edit on What's the parametric equation for the general form of an ellipse rotated by any amount?
May
21
comment How do I sell out with abstract algebra?
Agreed that pre-written libraries such as GLM (a linear algebra library for OpenGL) exist so that programmers use them without knowing the required linear algebra, those who know it are always in demand, else you wouldn't have questions like this, this or this; +1 to @AlexR.
May
21
awarded  Commentator
May
21
comment How do I sell out with abstract algebra?
@bubba: I'm a professional software engineer working in graphics domain. I constantly use Direct3D (the part of DirectX which has graphics-related code) and OpenGL. Most code dealing with linear algebra is hand-written by programmers for their application. Also, there're lot of domains in CS where linear algebra is vital. Computer vision (OpenCV), parallel computing (OpenCL), graphics/game/simulation engines (OpenGL), speech recognition, bioinformatics, etc. to name a few. See this for a the complete list.
May
9
comment Why does aliasing cause loss of a degree of freedom in Euler angles?
This answer nicely puts it: "Euler Angles" you can think of as a function (S1)3→SO3 or R3→SO3. The derivative of this function does not always have rank 3, so you have degenerate submanifolds where the function is many-to-one. In this special case that's called "gimbal lock". Since in Euler angles multiple values represent the same orientation (aliasing) the mapping isn't one to one, so we've no way to distinguish/record the variation in one degree since the rank becomes less then 3.
Apr
9
comment Which number is larger and Why? 1.7 or 1.73205
+1 on my defence, I thought the OP was confused only about real numbers and is probably comfortable handling integers :)
Apr
9
comment Which number is larger and Why? 1.7 or 1.73205
@bdesham: You mean at a lesser level or...?
Apr
9
revised Which number is larger and Why? 1.7 or 1.73205
fixed formatting
Apr
9
answered Which number is larger and Why? 1.7 or 1.73205
Mar
27
awarded  Teacher
Mar
27
revised “Simple” beautiful math proof
fixed formatting
Mar
27
answered “Simple” beautiful math proof